Building envelope

Abstract

The present invention relates to a building envelope (100) comprising a fire resistant tape (20) for sealing a seam between a first sheet (10a) of fire resistant barrier material and a second sheet (10b) of fire resistant barrier material, the fire resistant barrier material (10) comprising a metal layer (13), a support layer (15) and an adhesive layer (14) between the metal layer (13) and the support layer (15), the fire resistant tape comprising a metal layer (23), a support layer (25), an adhesive layer (24) between the metal layer (23) and the support layer (25) and an acrylic pressure sensitive adhesive coating layer (28) on the support layer (25). The present invention further relates to a fire resistant seam tape.

Description

Technical Field

[0001] This specification relates to a fire-resistant building envelope. This specification further relates to a fire-resistant seam tape for a building.

Background Art

[0002] A building envelope can be used as a physical separation between a conditioned environment and an unconditioned environment of a building. A building envelope can be used to protect the interior from the transmission of liquid and vapor water, heat, light, and noise. With the building envelope, it may be possible to keep, for example, warm air or cold air inside the building.

[0003] A building may have, for example, a vapor barrier to prevent moisture, such as humidity, from entering the wall assembly. However, an improved building envelope for buildings is still needed.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The object of this specification is to provide a building envelope comprising a fire-resistant barrier material and a fire-resistant tape. Further, the object of this specification is to provide a fire-resistant seam tape for a building.

Means for Solving the Problems

[0005] Aspects of the present invention are characterized by what is described in the independent claims. Preferred embodiments are disclosed in the dependent claims. These and other embodiments are disclosed in this specification and the drawings.

[0006] Buildings may contain materials that are combustible. To enhance the effect against fire, a novel building envelope discloses a fire-resistant barrier material and a fire-resistant seam tape for at least a certain degree of improved fire resistance.

[0007] Furthermore, a combination including the fire-resistant barrier material and the fire-resistant tape may improve the barrier control of some parts of the building envelope. In this case, the tape may have a barrier property similar to that of the fire-resistant barrier material. The novel building envelope may provide a better effect against fire, for example, to improve the safety of people in the building.

[0008] The fire-resistant barrier material may be a fire-resistant sheet material. The fire-resistant barrier material may also be a laminated sheet for buildings. Preferably, the fire-resistant barrier material is a fire-resistant, waterproof, and vapor-barrier material that can be at least substantially airtight.

[0009] The fire-resistant tape may be a fire-resistant seam tape for buildings. The fire-resistant seam tape may be arranged to seal the seams between the sheets of the fire-resistant barrier material.

[0010] The building envelope may include the fire-resistant tape and at least two sheets of the fire-resistant barrier material, namely, a first sheet and a second sheet. The fire-resistant tape seals the seams between the sheets. The first sheet may overlap the second sheet, and the tape may seal the seams between the overlapping sheets.

[0011] The building envelope including the fire-resistant barrier material and the fire-resistant tape may be installed for the purpose of fire resistance, waterproofing, windproofing, and / or vapor barrier.

[0012] The fire-resistant barrier material may be A) a metal layer that may be an aluminum layer having a thickness in the range of 6 μm to 100 μm, B) a support layer, - a glass fiber fabric having a specific mass in the range of 50 g / m 2 ~500 g / m 2 or - a non-woven fabric having a specific mass in the range of 5 g / m 2 ~50 g / m 2A glass fiber scrim having a specific mass in the range of comprising a support layer and C) An adhesive layer between the metal layer and the support layer, having a specific mass in the range of 0.5 g / m 2 to 15 g / m 2 may be provided. can be provided.

[0013] Due to the structure of the refractory barrier material described above, several barrier properties such as flame retardancy and even water vapor barrier property can be improved.

[0014] The adhesive layer of the barrier material may include a two-component or multi-component adhesive. The adhesive layer of the barrier material may include a flame retardant adhesive. Preferably, the adhesive layer of the barrier material is a flame retardant two-component or multi-component adhesive.

[0015] The refractory tape A) may be an aluminum layer having a thickness in the range of 6 μm to 100 μm, which is the metal layer of the tape, B) is the support layer of the tape, - A glass fiber fabric having a specific mass in the range of 50 g / m 2 to 500 g / m 2 or - A glass fiber scrim having a specific mass in the range of 5 g / m 2 to 50 g / m 2 comprising a support layer C) is an adhesive layer of the tape between the metal layer and the support layer, having a specific mass in the range of 0.5 g / m to 15 g / m 2 and 2 D) is an acrylic pressure-sensitive adhesive coating layer on the support layer of the tape, having a specific mass in the range of 20 g / m to 200 g / m 2 and 2 may be provided. can be provided.

[0016] Therefore, the flame retardancy of the refractory tape, and even some of its barrier properties, can be improved. Furthermore, the acrylic pressure-sensitive adhesive can bring about an improvement in the sealing property of the refractory sheet.

[0017] The adhesive layer of the refractory tape may include a two-component or multi-component adhesive. The adhesive layer of the refractory tape may include a flame-retardant adhesive. Preferably, the adhesive layer of the tape is a flame-retardant two-component or multi-component adhesive.

[0018] The pressure-sensitive adhesive coating layer may be a flame-retardant acrylic pressure-sensitive adhesive coating layer. Preferably, the specific mass of the acrylic pressure-sensitive adhesive coating layer is 30 g / m 2 ~80 g / m 2 in the range.

[0019] The specific mass of the adhesive layer of the refractory tape and the refractory barrier material may be in the range of 0.7 g / m 2 ~3 g / m 2 in the range. Furthermore, when the glass fiber fabric of the refractory tape and the refractory barrier material is used, its specific mass may preferably be in the range of 70 g / m 2 ~90 g / m 2 in the range. Furthermore, the thickness of the metal layer of the refractory tape and the refractory barrier material may preferably be in the range of 30 μm to 50 μm.

[0020] With this novel solution, it is possible to obtain a building envelope with improved fire resistance and good strength characteristics. Furthermore, the vapor barrier property of the building envelope can also be improved.

[0021] The refractory tape can meet the European fire protection standard Euroclass B-s2, d0. Furthermore, the refractory barrier material can meet the European fire protection standard Euroclass A2-s1, d0.

[0022] Surprisingly, the building envelope comprising both the fire-resistant barrier material sheet conforming to Euroclass A2-s1, d0 and the fire-resistant seam tape conforming to Euroclass B-s2, d0 can meet the European fire protection standard Euroclass A2-s1, d0 as long as the amount of the fire-resistant seam tape specified from the total outer surface area of the building envelope is 15% or less.

[0023] The fire-resistant tape can have several technical effects. The acrylic adhesive layer can improve the adhesiveness between the fire-resistant tape and the fire-resistant barrier material. Therefore, the acrylic adhesive can improve the water vapor sealing property of the tape. Furthermore, the fire-resistant tape can have good mechanical properties. Still further, the fire-resistant tape can have appropriate hydrophobicity, and thus, the building envelope comprising the fire-resistant tape and the fire-resistant barrier material can have a low water absorption value. Thereby, the usefulness of the building envelope comprising the fire-resistant barrier material and the fire-resistant tape can be substantially improved.

[0024] The building envelope comprising the fire-resistant barrier material together with the fire-resistant tape can be arranged to protect the building from fire to at least some extent. Thereby, to some extent, additional time for individuals to escape from the building can be obtained.

[0025] Furthermore, the fire-resistant barrier material, together with the fire-resistant tape, can also be arranged to protect the building from the diffusion of moisture and / or air. Furthermore, the fire-resistant barrier material, together with the fire-resistant tape, can also be arranged to protect the building from water vapor. The barrier property of a part of the building envelope comprising the fire-resistant barrier material together with the fire-resistant tape can be more easily controlled than before by the fire-resistant tape, and this tape can have a barrier property similar to or even better than that of the fire-resistant barrier material.

[0026] The fire-resistant barrier material is preferably a water vapor barrier sheet. The novel building envelope can be used as a vapor barrier for high-rise buildings and public buildings where fire safety is essential.

[0027] In order to obtain good barrier properties, the fire-resistant barrier material may not have, for example, fine through-holes or any other kind of holes. Furthermore, the fire-resistant barrier material may not be a so-called breathable material.

[0028] The building envelope can be an environmentally friendly solution. For example, the VOC (volatile organic compound) emissions of the building envelope may be low.

[0029] IAC Gold certification can be given to products that meet low product emissions requirements. The building envelope comprising the fire-resistant barrier material and the fire-resistant tape according to this specification may have low emissions in accordance with the VOC requirements of Eurofins Indoor Air Comfort GOLD (IAC Gold).

[0030] Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

Brief Description of the Drawings

[0031]

Figure 1a

Figure 1b

Figure 2a

Figure 2b

Figure 3a

Figure 3b

DETAILED DESCRIPTION OF THE INVENTION

[0032] The figures are schematic and are intended to illustrate the general principles of the disclosed solution. Therefore, the figures in the drawings are not necessarily to scale and do not suggest the exact layout of the system components.

[0033] The solution will be described in more detail below with reference to several embodiments, which should not be regarded as limiting. In this specification, reference is made to the drawings in which the following reference numbers and symbols are used. 10 Fire-resistant barrier material 10a First sheet of fire-resistant barrier material 10b Second sheet of fire-resistant barrier material t 10 Thickness of the fire-resistant barrier material 11 First surface of the fire-resistant barrier material 12 Second surface of the fire-resistant barrier material 13 Metal layer of the fire-resistant barrier material t 13 Thickness of the metal layer of the fire-resistant barrier material 14 Adhesive layer of the fire-resistant barrier material 15 Support layer of the fire-resistant barrier material 16 Lacquer layer of the fire-resistant barrier material 17 Printing on the fire-resistant barrier material 20 Fire-resistant tape 20a Sealed seam formed by the fire-resistant tape t 20 Thickness of the fire-resistant tape 21 First surface of the fire-resistant tape 22 Second surface of the fire-resistant tape 23 Metal layer of the fire-resistant tape t 23 Thickness of the metal layer of the fire-resistant tape 24 Adhesive layer of the fire-resistant tape 25 Support layer of the fire-resistant tape 26 Lacquer layer of the fire-resistant tape 27 Printing of the fire-resistant tape 28 Adhesive coating of the fire-resistant tape 100 Building envelope comprising a fire-resistant barrier material and a fire-resistant tape

[0034] In this specification, the term "comprising" can be used as a non-limiting term, but it also includes the limiting term "consisting of".

[0035] Throughout this specification, percentage values regarding the amount of materials are, unless otherwise specified, percentages by weight (wt%). All percentage values, unless otherwise specified, mean dry weight.

[0036] Throughout this specification, the term "basis weight" means the mass of a material layer divided by the area of said layer (g / m 2 ), that is, the grammage.

[0037] The term "gsm" means grams per square meter (g / m 2 ).

[0038] In this specification, the term "MD" means the longitudinal direction. The term "longitudinal direction" is known to those skilled in the art. The term "longitudinal direction" means the manufacturing direction of the web and is the longitudinal direction of the web. In the case of a roll, said longitudinal direction is the circumferential direction of the roll.

[0039] In this application, the term "CD" means the transverse direction. The term "transverse direction" is known to those skilled in the art. Said transverse direction means a direction transverse to said longitudinal direction.

[0040] The actions against fire are determined and classified according to the European fire protection standard EN 13501-1:2007+A1:2009 (valid in 2021).

[0041] The grammage can be measured according to the standard EN 1849-2 (valid in 2021). Furthermore, the thickness can be specified according to the standard EN 1849-2.

[0042] Fire-resistant barrier material Referring to FIGS. 1a to 1b, the fire-resistant barrier material 10 may include a first surface 11 and a second surface 12. The fire-resistant barrier material 10 may be fire-resistant barrier material sheet materials 10a, 10b.

[0043] The fire-resistant barrier material includes a metal layer 13, a support layer 15, and an adhesive layer 14 between the metal layer and the support layer, and this adhesive layer 14 is preferably a flame-retardant adhesive layer.

[0044] In one embodiment, the fire-resistant barrier material 10 - a metal layer 13, - a support layer 15 which may be a fire-resistant support layer comprising a glass fiber fabric, - an adhesive layer 14 which is between the metal layer and the support layer and is preferably a flame-retardant adhesive layer, - optionally, a lacquer layer 16 on the metal layer, and - optionally, a print 17 on the lacquer layer, and consists of.

[0045] The adhesive layer 14 may be disposed between the metal layer 13 and the support layer 15 to attach the metal layer to the support layer.

[0046] The fire-resistant support layer 15 can improve the fire resistance of the fire-resistant barrier material while efficiently supporting the metal layer 13 from external stress. Further, the metal layer can improve the fire resistance of the fire-resistant barrier material while further improving the rigidity of the product. Further, by using the flame-retardant adhesive, the fire resistance performance of the fire-resistant barrier material 10 can be substantially improved.

[0047] To obtain some improved properties, the total weight per square meter of the refractory barrier material may range from 100 gsm to 300 gsm, preferably from 150 gsm to 190 gsm. Further, in one embodiment, the thickness of the refractory barrier material may range from 100 μm to 300 μm, preferably from 130 μm to 180 μm.

[0048] The refractory barrier material may be arranged such that the Sd (water vapor permeability) value measured according to Standard EN 1931 (valid in 2021) is 1500 m or more.

[0049] The refractory barrier material may be arranged to have a water tightness of W1 measured according to Method A of Standard EN 1928:2000 at a pressure of 2 kPa as specified in EN 13984:2013.

[0050] The refractory barrier material may be arranged such that the tensile strength (measured in the longitudinal direction) measured according to EN 13859-1:2020, Standard EN 12311-1 modified in Annex A as specified in EN 13984:2013 is at least 700 N / 50 mm, preferably at least 750 N / 50 mm.

[0051] The refractory barrier material may be arranged such that the tensile strength (measured in the transverse direction) measured according to EN 13859-1:2020, Standard EN 12311-1 modified in Annex A as specified in EN 13984:2013 is at least 700 N / 50 mm, preferably at least 750 N / 50 mm.

[0052] The refractory barrier material may be arranged such that the elongation at maximum force in MD and CD measured according to EN 13859-1:2020, Standard EN 12311-1 modified in Annex A as specified in EN 13984:2013 is at least 2.5% and preferably less than 6%.

[0053] The metal layer of the refractory barrier material The refractory barrier materials 10, 10a, 10b include the metal layer 13. The metal layer 13 can be an aluminum layer. Therefore, the metal layer 13 is preferably made of aluminum. Aluminum is beneficial in terms of its low gas diffusivity, fire resistance, and light weight. Therefore, aluminum may, for example, improve the fire resistance of the refractory barrier material while not excessively increasing the weight of the refractory barrier material.

[0054] The metal layer 13 of the refractory barrier material 10 can be an aluminum layer having a thickness in the range of 6 μm to 100 μm, preferably in the range of 30 μm to 50 μm. The thickness of the metal layer is at least 6 μm, preferably at least 15 μm, more preferably at least 25 μm, and most preferably at least 30 μm in order to provide good water vapor barrier properties and further improve the fire resistance and rigidity of the refractory barrier material. Further, the thickness of the metal layer may be 100 μm or less, preferably 80 μm or less, more preferably 60 μm or less, and most preferably 50 μm or less in order to reduce costs. Further, when the weight of the product is sufficiently small, the installation process can also be made easy.

[0055] The metal layer can be made from one or more aluminum layers. The metal layer can comprise only one aluminum layer. In one embodiment, the metal layer 13 is made from two or three aluminum layers each having a thickness in the range of 6 μm to 50 μm, preferably in the range of 20 μm to 40 μm, such that the total thickness of the metal layer is in the range of 20 μm to 100 μm, preferably in the range of 50 μm to 90 μm. In embodiments where the metal layer comprises at least two aluminum layers, an adhesion layer can be placed between two adjacent aluminum layers to form the metal layer. The adhesion layer may include or consist of one or more polymers. The adhesion layer may include an ionomer. The adhesion layer may comprise a plastic layer such as a layer made from polyamide. In one embodiment, the adhesion layer includes, for example, an adhesive. The adhesion layer can be a flame-retardant adhesion layer.

[0056] Support layer of the refractory barrier material The refractory barrier material 10 includes the support layer 15 that can be a refractory support layer. The refractory support layer 15 can substantially improve the fire resistance of the refractory barrier material. The refractory support layer 15 can further improve the internal strength of the refractory barrier material, for example, support the metal layer from external stress.

[0057] The support layer can include at least 80% by weight of glass fibers. Preferably, the support layer includes, specified from the total weight of the support layer, at least 90% by weight of glass fibers, more preferably at least 95% by weight of glass fibers, and most preferably at least 97% by weight of glass fibers. The refractory support layer may include or may consist of a glass fiber fabric. The benefits obtained from the glass fiber fabric can be better realized as the amount of other materials included in the support layer is less.

[0058] The glass fibers of the glass fiber fabric can be sized glass fibers. Therefore, the glass fiber fabric is preferably a sized glass fiber fabric manufactured by weaving sized glass fiber yarns. The sizing treatment can enable the fibers to pass through the weaving process without causing cutting.

[0059] Advantageously, the glass fibers are sized using polyvinyl alcohol before the weaving process. The amount of polyvinyl alcohol can range from 0.1 to 1 g / m 2 determined from the total weight of the glass fiber fabric. The sizing treatment can improve the ease of weaving of the fabric.

[0060] The support layer can be made of glass fibers. The glass fibers of the glass fiber fabric of the refractory barrier material can be non-combustible textile fibers, and therefore, the glass fiber fabric can substantially improve the flame retardancy of the refractory barrier material.

[0061] Furthermore, since the glass fiber can be a strong fiber, the glass fiber fabric can also provide good strength characteristics with respect to the refractory barrier material. Still further, due to the glass fiber fabric, the dimensional stability of the product can also be improved. The improved dimensional stability can further protect other layers such as the metal layer. Still further, the good dimensional stability can improve the ease of the installation process in which at least some seams between the refractory barrier material sheets can be sealed using the refractory tape. Furthermore, the thermal conductivity of the glass fiber fabric may be low, which can be useful in buildings.

[0062] The glass fiber fabric is preferably a so-called raw glass fiber fabric, that is, an unfinished glass fiber fabric. With the raw glass fiber fabric, it is possible to obtain improved strength characteristics in the refractory barrier material. The glass fiber yarn of the raw glass fiber fabric may be sized before the weaving process.

[0063] The glass fiber fabric, particularly the raw glass fiber fabric, can form a refractory layer that can substantially improve the flame retardancy of the refractory barrier material. Therefore, the refractory support layer can substantially improve the flame retardancy of the building envelope including the refractory tape and the refractory barrier material.

[0064] The glass fiber fabric may be incombustible or at least substantially incombustible, that is, it cannot sustain a flame. Further, even when exposed to heat, it cannot emit harmful substances or smoke, which can be a particularly useful property in buildings. Still further, the glass fiber fabric is not easily affected by rodents or insects.

[0065] The glass fiber fabric may be in the form of a layer having a predetermined specific mass. The refractory support layer of the refractory barrier material is 50 g / m 2 ~500 g / m 2 in the range of, preferably 60 g / m 2 ~300 g / m 2 in the range of, more preferably 65 g / m 2 ~150 g / m 2 in the range of, most preferably 70 g / m 2 ~90 g / m 2 and may have a specific mass in the range. Thus, the refractory support layer may be able to improve the fire resistance while supporting the metal layer without being too heavy for the refractory barrier material. Further, the smaller the specific mass, the lower the manufacturing cost may be. The aforementioned specific mass of the refractory support layer can provide good mechanical support and fire resistance without excessive weight gain.

[0066] In one embodiment, the support layer may comprise or consist of glass fiber yarns having a decitex value in the range of 17 to 136 dtex, such as in the range of 30 to 100 dtex. Those skilled in the art are well aware of the term "decitex (dtex)". The above-mentioned decitex value means the fineness of the yarn that may be beneficial for obtaining at least some of the above-mentioned benefits cost-effectively.

[0067] In one embodiment, the support layer 15 of the refractory barrier material comprises or consists of a glass fiber scrim having a specific mass in the range of 5 g / m 2 ~50 g / m 2 in the range of, preferably 10 g / m 2 ~40 g / m 2 in the range. The glass fiber scrim may be a cost-effective alternative in the support layer. However, the glass fiber fabric can provide somewhat better properties than the glass fiber scrim.

[0068] Adhesive layer of refractory barrier material The refractory barrier material further comprises an adhesive layer 14 between the metal layer 13 and the support layer 15 for attaching the metal layer 13 to the support layer 15.

[0069] The adhesive layer of the barrier material may include a two-component or multi-component adhesive. The adhesive layer may be a flame-retardant adhesive layer. Preferably, the adhesive layer of the barrier material is a flame-retardant two-component or multi-component adhesive.

[0070] The adhesive layer may have a specific mass in the range of 0.1 g / m 2 ~15 g / m 2 , preferably in the range of 0.5 g / m 2 ~3 g / m 2 . The adhesive layer of the barrier material layer may have a specific mass of at least 0.1 g / m 2 , preferably 0.3 g / m 2 or more, more preferably 0.5 g / m 2 or more, most preferably 0.8 g / m 2 or more. Thus, the adhesive layer can provide good adhesiveness to the layers to be adhered to each other. Further, the adhesive layer may have a specific mass of 15 g / m 2 or less, preferably 10 g / m 2 or less, more preferably 6 g / m 2 or less, most preferably 3 g / m 2 or less. Thus, the adhesive layer can be manufactured cost-effectively.

[0071] As considered, the adhesive layer 14 is preferably a flame-retardant adhesive layer, and most preferably a flame-retardant biocomponent or multi-component adhesive layer.

[0072] The adhesive layer may include or be made from a flame-retardant aqueous two-component or multi-component adhesive. Preferably, the adhesive layer includes a two-component or multi-component polyurethane adhesive.

[0073] The two-component or multi-component adhesive can be obtained by mixing at least two components, such as a polyol and an isocyanate, to obtain the two-component or multi-component adhesive. Preferably, the adhesive layer includes a two-component or multi-component polyurethane adhesive formed by the reaction of an isocyanate and a polyol. With the two-component or multi-component adhesive, a strong and flexible bond can be formed between the glass fiber fabric and the metal layer. Further, the two-component or multi-component polyurethane adhesive can be a particularly strong adhesive that may have resistance to decomposition. Further, the two-component or multi-component polyurethane adhesive can function well with both the surfaces of the glass fiber fabric and the metal layer. Further, the adhesiveness of the adhesive can be improved by the isocyanate component.

[0074] The adhesive layer 14 of the refractory barrier material may include one or more flame retardant components. In one embodiment, the flame retardant component of the adhesive layer includes or consists of at least one of the following: - A nitrogen-based component, particularly melamine such as melamine polyphosphate or melamine cyanurate, - A phosphorus-based component, particularly ammonium polyphosphate (APP), and - An inorganic-based component, particularly aluminum trihydroxide (ATH) and / or magnesium hydroxide (MDH).

[0075] These chemicals can provide greatly improved fire resistance and flame extinguish properties to the adhesive layer.

[0076] The technical effects of the nitrogen-based component are to release inert nitrogen N2 that dilutes fire gases, act as a coolant by endothermic decomposition, and further function as a foaming agent in a thermal expansion system.

[0077] The technical effect of the phosphorus-based component is that the carbon-rich environment makes the gas-phase mechanism by the formation of phosphorus radicals advantageous. Furthermore, another flame-retardant mechanism of ammonium polyphosphate is the formation of a char layer which is a thick layer of carbon.

[0078] The technical effect of the inorganic-based component is that, for example, since decomposition occurs at a higher temperature, the inorganic-based component can reduce the combustion rate by releasing water to lower the temperature (endothermic reaction). Furthermore, minerals such as aluminum can also contribute to the formation of a glassy char.

[0079] Many advantages can be obtained by the adhesive layer 14. For example, the adhesiveness between the support layer and the metal layer can be improved. Furthermore, some barrier properties of the refractory barrier material can be improved. Furthermore, the fire resistance can also be improved.

[0080] Lacquer layer of refractory barrier material The refractory barrier material may further include a lacquer layer 16 such as a transparent or black lacquer layer on the metal layer 13.

[0081] The lacquer layer can improve the visual appearance of the refractory barrier material 10. The lacquer layer can further protect the metal layer 13. In particular, the lacquer layer 16 can prevent, for example, the surface of the aluminum layer from being easily oxidized when it is used. Therefore, preferably, the lacquer layer is directly applied on the aluminum layer when it is used. Furthermore, the lacquer can be used as a printing accelerator.

[0082] In one embodiment, the lacquer layer 16 is a transparent lacquer layer. The transparent lacquer layer on the metal layer can provide a solution that promotes a low emissivity and contributes to the improvement of the heat insulation by IR radiation and thus the reduction of heat transfer.

[0083] The lacquer layer is, for example, 0.5 g / m 2 ~2 g / m2 may have a specific mass within a range.

[0084] Printing of the refractory barrier material The refractory barrier material may further include printing 17 on the lacquer layer 16. The refractory barrier material 10 may or may not be printed. Therefore, the printing 17 is not necessarily required for the refractory barrier material, and is simply an optionally existing layer for, for example, providing information of the refractory barrier material.

[0085] The outer surface of the refractory barrier material may include, for example, printing and / or lacquer. Therefore, the metal layer 13 may be at least partially covered by the lacquer layer 16 and / or the printing 17.

[0086] Refractory tape Referring to FIGS. 2a-2b, the refractory tape includes - a metal layer 23 of the refractory tape, - a support layer 25 of the refractory tape, which may be a refractory support layer including, for example, a glass fiber fabric, - an adhesive layer 24 of the refractory tape, which is between the metal layer 23 and the refractory support layer 25 and is preferably a flame-retardant adhesive layer, and - an acrylic pressure-sensitive adhesive coating layer 28 on the support layer 25. may be provided.

[0087] The refractory tape may be in the form of a web. The term "web" means a continuous material. A web such as a tape can be stored and / or transported as a roll.

[0088] The refractory tape 20 may include a first surface 21 and a second surface 22 of the refractory tape. The second surface 22 may be the inner surface of the refractory tape 20 that will be attached to the refractory barrier material. The first surface 21 of the refractory tape 20 may be the outer surface of the refractory tape 20.

[0089] Therefore, the second surface 22 of the tape 20 can be attached to the refractory barrier material 10. Preferably, the second surface 22 of the tape 20 is arranged to be attached to the first surface 11 of the refractory barrier material.

[0090] In one embodiment, the refractory tape - a metal layer 23, - a support layer 25 which is preferably a layer of glass fiber fabric, - an adhesive layer 24 which is between the metal layer 23 and the support layer 25 and is preferably a flame-retardant adhesive layer, - a pressure-sensitive adhesive coating layer 28 on the support layer, - optionally, a lacquer layer 26 on the metal layer, - optionally, a print 27 on the lacquer layer, and - optionally, a release liner on the adhesive layer. consists of.

[0091] In one embodiment, the adhesive layer 24 of the refractory tape is a flame-retardant adhesive layer and is placed between the metal layer 23 and the support layer 25. Further, the support layer 25 is preferably placed between the adhesive layer 24 and the pressure-sensitive adhesive coating layer 28. In this embodiment, the support layer 25 can improve the fire resistance of the refractory tape while efficiently supporting the metal layer 23 from external stresses. Further, the fire resistance performance of the refractory tape 20 can be substantially improved by the flame-retardant adhesive layer. Further, the acrylic pressure-sensitive adhesive coating layer 28 is preferably a flame-retardant acrylic pressure-sensitive adhesive coating layer. The flame-retardant acrylic pressure-sensitive adhesive coating layer can form a suitable seal on the refractory barrier material sheet to improve the fire resistance and also some barrier properties of the building envelope.

[0092] To provide a predetermined flame retardancy and barrier property to the building envelope, the width of the fire-resistant tape can be, for example, in the range of 60 mm to 150 mm, preferably in the range of 65 mm to 110 mm, and most preferably in the range of 70 mm to 90 mm.

[0093] The fire-resistant tape can be arranged such that the Sd value measured in accordance with the standard EN 1931 (valid in 2021) is 1500 m or more.

[0094] The fire-resistant tape can be arranged to have a W1 watertightness measured in accordance with Method A of the standard EN 1928:2000 at a pressure of 2 kPa, as specified in EN 13984:2013.

[0095] The fire-resistant tape material can be arranged such that the tensile strength in the longitudinal measurement, measured in accordance with EN 13859-1:2020, modified standard EN 12311-1 in Annex A as specified in EN 13984:2013, is at least 700 N / 50 mm, preferably at least 750 N / 50 mm.

[0096] The fire-resistant tape can be arranged such that the tensile strength in the transverse measurement, measured in accordance with EN 13859-1:2020, modified standard EN 12311-1 in Annex A as specified in EN 13984:2013, is at least 400 N / 50 mm, preferably at least 450 N / 50 mm.

[0097] The fire-resistant tape can be arranged such that the elongation at maximum force in the MD and CD, measured in accordance with EN 13859-1:2020, modified standard EN 12311-1 in Annex A as specified in EN 13984:2013, is at least 2.5% and preferably less than 6%.

[0098] The fire-resistant tape can be stored and / or transported such that the pressure-sensitive adhesive coating layer 28 is protected by a release liner (not shown). In this embodiment, the release liner is arranged to be on the pressure-sensitive adhesive coating layer 28 before the fire-resistant tape is used to seal a seam. Thus, the release liner is removed before using the fire-resistant tape. The release liner can improve the self-woundability of the fire-resistant tape. In particular, the release liner can assist the fire-resistant tape in winding around itself without the layers tending to block each other. Without the release liner, the adjacent layers of the roll may adhere to each other due to the adhesive layer of the fire-resistant tape.

[0099] Metal layer of the fire-resistant tape The fire-resistant tape 20 includes the metal layer 23 of the fire-resistant tape. The metal layer 23 can be an aluminum layer. Thus, the metal layer 23 is preferably made of aluminum. Aluminum is beneficial in seam tapes in terms of its low gas diffusivity, fire resistance, and light weight.

[0100] The metal layer 23 of the fire-resistant tape can be an aluminum layer having a thickness in the range of 6 μm to 100 μm, preferably in the range of 30 μm to 50 μm. The thickness of the aluminum layer of the fire-resistant tape can be at least 6 μm, preferably at least 15 μm, more preferably at least 25 μm, and most preferably at least 30 μm in order to improve fire resistance and provide a good water vapor barrier to the seam. Further, the thickness of the aluminum layer can be 100 μm or less, preferably 80 μm or less, more preferably 60 μm or less, and most preferably 50 μm or less in order to reduce costs. The metal layer of the fire-resistant tape can, for example, improve the fire resistance of the fire-resistant tape.

[0101] The metal layer preferably comprises only one layer of aluminum layer. Therefore, it is possible to obtain a substantially simple structure in the fire-resistant seam tape. The metal layer can consist of one layer of aluminum layer. In one embodiment, the metal layer comprises two layers of aluminum layer, and an adhesion layer can be placed between two adjacent aluminum layers to form the metal layer.

[0102] The metal layer of the fire-resistant tape can have the same or substantially the same properties as the metal layer of the fire-resistant barrier material. Thereby, the controllability of the properties of the building envelope comprising the tape and the barrier material can be improved.

[0103] Support layer of the fire-resistant tape The fire-resistant tape 20 comprises the support layer 25 which can be a fire-resistant support layer. The fire-resistant support layer 25 can substantially improve the fire resistance of the fire-resistant tape. The support layer 25 can further improve the internal strength of the fire-resistant tape, for example, it can support the metal layer from external stress, especially during the installation process of the building envelope.

[0104] The fire-resistant support layer may comprise or consist of a glass fiber fabric. The benefits obtained from the glass fiber fabric can be better realized as the other materials comprised in the support layer are fewer.

[0105] The glass fibers of the glass fiber fabric can be sized glass fibers. Therefore, the glass fiber fabric is preferably a sized glass fiber fabric manufactured by weaving sized glass fiber yarns. The sizing treatment can make it possible to pass the fibers through the weaving process without causing cutting.

[0106] Advantageously, the glass fiber is sized using polyvinyl alcohol prior to the weaving process. The amount of the polyvinyl alcohol can be determined from the total weight of the glass fiber fabric and can be in the range of 0.1 to 1 g / m 2 and can be in the range of. As discussed above, the sizing treatment can improve the ease of weaving of the fabric.

[0107] The support layer of the fire-resistant tape can be made of glass fiber. The glass fiber of the fire-resistant tape may be a non-combustible textile fiber. Therefore, the glass fiber fabric can substantially improve the flame retardancy of the fire-resistant tape. Further, the flame retardancy can be improved by the sealed seam of the building envelope including the fire-resistant tape 20 and the fire-resistant barrier material 10.

[0108] Furthermore, since the glass fiber is a very strong fiber, the glass fiber fabric can also provide good strength characteristics for the fire-resistant tape for sealing the seam of the barrier material sheet. Still further, the dimensional stability of the fire-resistant tape can be improved by the glass fiber fabric, which can improve the quality of the seam of the building envelope.

[0109] The glass fiber fabric is preferably a so-called raw glass fiber fabric, that is, an unfinished glass fiber fabric. By the raw glass fiber fabric, it is possible to obtain improved strength characteristics in the seam of the building envelope. The glass fiber yarn of the raw glass fiber fabric may be sized prior to the weaving process.

[0110] The support layer can substantially improve the flame retardancy of the fire-resistant tape and the building envelope including the tape. Therefore, the fire-resistant support layer can substantially improve the flame retardancy of the building envelope including the fire-resistant tape.

[0111] The glass fiber fabric of the fire-resistant tape may be incombustible or at least substantially incombustible, i.e., it cannot sustain a flame. Further, it cannot emit harmful substances or smoke even when exposed to heat, which can be a particularly useful property in a building. Still further, the glass fiber fabric is not readily affected by rodents or insects, which can improve the quality of the seam over time.

[0112] The glass fiber fabric may be in the form of a layer having a predetermined specific mass.

[0113] The support layer of the fire-resistant tape is 50 g / m 2 ~500 g / m 2 in the range of, preferably 60 g / m 2 ~300 g / m 2 in the range of, more preferably 65 g / m 2 ~150 g / m 2 in the range of, most preferably 70 g / m 2 ~90 g / m 2 and may have a specific mass in this range. Thus, the support layer of the fire-resistant tape can improve fire resistance while supporting the metal layer. Further, the smaller the specific mass, the lower the manufacturing cost can be. The aforementioned specific mass of the support layer of the fire-resistant tape can provide good mechanical support, highly reliable sealing property, and fire resistance.

[0114] In one embodiment, the support layer 25 of the fire-resistant tape comprises, or consists of, a glass fiber scrim having a specific mass in the range of 5 g / m 2 ~50 g / m 2 in the range of, preferably 10 g / m 2 ~40 g / m 2 The glass fiber scrim can be a cost-effective alternative in the support layer. However, the glass fiber fabric can provide better properties than the glass fiber scrim.

[0115] The support layer of the fire-resistant tape may have the same or substantially the same properties as the support layer of the fire-resistant barrier material. Thereby, the controllability of the properties of the building envelope including the tape and the barrier material can be improved.

[0116] Adhesive layer of the fire-resistant tape The fire-resistant tape 20 further includes an adhesive layer 24 of the fire-resistant tape between the metal layer 23 and the support layer 25 in order to attach the metal layer 23 to the support layer 25.

[0117] The adhesive layer of the fire-resistant tape may include a two-component or multi-component adhesive. The adhesive layer of the fire-resistant tape may be a flame-retardant adhesive layer. Preferably, the adhesive layer of the fire-resistant tape is a flame-retardant two-component or multi-component adhesive.

[0118] The adhesive layer of the fire-resistant tape is 0.1 g / m 2 ~15 g / m 2 in the range, preferably 0.5 g / m 2 ~3 g / m 2 and may have a specific mass in the range. The adhesive layer of the fire-resistant tape has at least 0.1 g / m 2 , preferably 0.3 g / m 2 or more, more preferably 0.5 g / m 2 or more, most preferably 0.8 g / m 2 or more of the specific mass. Thus, the adhesive layer can provide good adhesiveness to the layers to be adhered to each other. Further, the adhesive layer has 15 g / m 2 or less, preferably 10 g / m 2 or less, more preferably 6 g / m 2 or less, most preferably 3 g / m 2 or less of the specific mass. Thus, the adhesive layer can be manufactured cost-effectively.

[0119] As examined, the adhesive layer 24 of the refractory tape is preferably the flame-retardant biocomponent adhesive layer or multi-component adhesive layer.

[0120] The adhesive layer may include or be made from a flame-retardant aqueous two-component or multi-component adhesive. Preferably, the adhesive layer of the refractory tape includes a two-component or multi-component polyurethane adhesive.

[0121] Preferably, the adhesive layer includes a two-component or multi-component polyurethane adhesive formed by the reaction of an isocyanate and a polyol. With the two-component or multi-component adhesive, a strong and flexible bond can be formed between the glass fiber fabric and the metal layer. Further, the two-component or multi-component polyurethane adhesive can be a particularly strong adhesive having resistance to decomposition. Further, the two-component or multi-component polyurethane adhesive can function well with both the surfaces of the glass fiber fabric and the metal layer. Further, the adhesiveness of the adhesive can be improved by the isocyanate component.

[0122] As examined, the adhesive layer of the refractory tape may include one or more flame-retardant components. Thus, one or more flame-retardant components can be added to the adhesive layer. In one embodiment, the flame-retardant component of the adhesive layer includes or consists of at least one of the following: - Nitrogen-based components, particularly melamine such as melamine polyphosphate or melamine cyanurate, - Phosphorus-based components, particularly ammonium polyphosphate (APP), and - Inorganic components, particularly alumina trihydrate (ATH) and / or magnesium hydroxide (MDH).

[0123] These chemicals can provide greatly improved fire resistance and fire extinguishing properties to the adhesive layer of the refractory tape.

[0124] The technical effects of the nitrogen-based component are to release inert nitrogen N2 that dilutes fire gases, to act as a coolant by endothermic decomposition, and further to function as a foaming agent in a thermal expansion system.

[0125] The technical effects of the phosphorus-based component are that the gas-phase mechanism by the formation of phosphorus radicals is favored by an environment rich in carbon. Further, another flame retardancy mechanism of ammonium polyphosphate is the formation of a char layer that is a thick layer of carbon.

[0126] The technical effects of the inorganic-based component are that, for example, since decomposition occurs at a higher temperature, the inorganic-based component can reduce the combustion rate by releasing water and lowering the temperature (endothermic reaction). Further, minerals such as aluminum can also contribute to the formation of a glassy char.

[0127] With the adhesive layer, especially when the flame-retardant two-component or multi-component adhesive is used, many advantages can be obtained in addition to the improved fire resistance. For example, some barrier properties of the building envelope including the fire-resistant tape and the fire-resistant barrier material can be improved.

[0128] The adhesive layer of the fire-resistant tape can have the same or substantially the same properties as the adhesive layer of the fire-resistant barrier material. Thereby, the controllability of the properties of the building envelope including the tape and the barrier material can be improved.

[0129] Adhesive coating layer of the fire-resistant tape The fire-resistant tape includes a pressure-sensitive adhesive coating layer 28. The pressure-sensitive adhesive coating can also be referred to as a self-adhesive coating.

[0130] The pressure-sensitive adhesive coating layer 28 is preferably an acrylic pressure-sensitive adhesive coating layer. The acrylic adhesive can be an environmentally friendly adhesive. Further, the acrylic adhesive can be particularly suitable for the building envelope. Most preferably, the pressure-sensitive adhesive coating layer 28 includes an aqueous acrylic pressure-sensitive adhesive coating.

[0131] IAC Gold certification can be given to products that meet the low product emissions requirements. The fire-resistant tape according to this specification can have low emissions in accordance with the VOC requirements of Eurofins Indoor Air Comfort GOLD (IAC Gold).

[0132] The fire-resistant tape may be a permanent tape using a permanent acrylic pressure-sensitive adhesive, which cannot be easily removed from the fire-resistant barrier material after installation.

[0133] The acrylic pressure-sensitive adhesive may be, for example, a tackified acrylic adhesive in order to provide strong adhesiveness with the outer surface of the fire-resistant barrier material.

[0134] The acrylic pressure-sensitive adhesive coating layer 28 is preferably a flame-retardant acrylic pressure-sensitive adhesive coating layer. With the flame-retardant acrylic pressure-sensitive adhesive coating layer, it is possible to form a strong seal at the seam of the fire-resistant barrier material sheet in order to improve the flame retardancy and further some barrier properties of the building envelope.

[0135] Therefore, the adhesive coating may contain a flame-retardant component in order to obtain a flame-retardant adhesive coating.

[0136] At least one flame-retardant component of the acrylic pressure-sensitive adhesive coating layer 28 can be selected from the group consisting of, or consisting of, the following: - Nitrogen-based components, particularly melamines such as melamine polyphosphate or melamine cyanurate, - Phosphorus-based components, particularly ammonium polyphosphate (APP), - Inorganic components, especially alumina trihydrate (ATH) and / or magnesium hydroxide (MDH).

[0137] These chemical substances can provide greatly improved fire resistance and fire extinguishing properties to the adhesive layer.

[0138] The technical effects of the nitrogen-based components are to release inert nitrogen N2 that dilutes fire gases, act as a coolant by endothermic decomposition, and further function as a foaming agent in a thermal expansion system.

[0139] The technical effects of the phosphorus-based components are that the gas-phase mechanism by the formation of phosphorus radicals is favored by an environment rich in carbon. Furthermore, another flame retardancy mechanism of ammonium polyphosphate is the formation of a char layer that is a thick layer of carbon.

[0140] The technical effects of the inorganic components are, for example, that since decomposition occurs at a higher temperature, the inorganic components can reduce the combustion rate by releasing water and lowering the temperature (endothermic reaction). Furthermore, minerals such as aluminum can also contribute to the formation of a glassy char.

[0141] The pressure-sensitive adhesive coating layer has a specific mass in the range of 20 g / m 2 ~200 g / m 2 Preferably in the range of 30 g / m 2 ~80 g / m 2 It may have a specific mass in the range. The pressure-sensitive adhesive coating layer has a specific mass of at least 20 g / m 2 Preferably 30 g / m 2 or more, more preferably 35 g / m 2 or more, most preferably 40 g / m 2 or more. Furthermore, the pressure-sensitive adhesive coating layer has a specific mass of 200 g / m 2 or less, preferably 150 g / m 2 or less, more preferably 100 g / m 2 or less, most preferably 80 g / m 2It may have the following specific gravity. Therefore, the pressure-sensitive adhesive coating layer can provide good adhesiveness to the tape to be adhered to the fire-resistant barrier material. Therefore, a highly reliable seal can be formed for the seams of the fire-resistant barrier material sheet. Further, the pressure-sensitive adhesive coating layer having such a specific gravity can be manufactured cost-effectively.

[0142] The fire-resistant tape 20 can be arranged to provide the barrier material 10 with a joint shear resistance of 150 N / 50 mm or more, typically 300 N / 50 mm or more, as specified according to standard EN 12317-2.

[0143] Furthermore, the peel resistance of the tape on the substrate by the material of the building envelope can be 6 N / 50 mm or more, typically 12 N / 50 mm or more, as specified according to standard EN 12316-2 (after 24 hours).

[0144] The pressure-sensitive adhesive coating layer is preferably a continuous adhesive layer in order to improve the controllability of the barrier property of the building envelope.

[0145] The type and weight of the adhesive can be optimized to have very good adhesiveness to both the support layer of the tape and the outer surface of the barrier material sheet. Therefore, the amount of the adhesive can be minimized in order to obtain very good shear force and an appropriate level of peel force cost-effectively and to improve the fire resistance performance as well.

[0146] In one embodiment, the pressure-sensitive adhesive is an aqueous adhesive aimed at low VOC emissions. As another option, the pressure-sensitive adhesive may be a hot melt adhesive, preferably a UV-based hot melt adhesive. As another option, the pressure-sensitive adhesive may be a solvent-based adhesive. However, it may be difficult to obtain low VOC emissions with a solvent-based adhesive.

[0147] The lacquer layer of the fire-resistant tape The fire-resistant tape may further include a lacquer layer 26 on the metal layer. The lacquer layer can improve the visual appearance of the fire-resistant tape. The lacquer layer can further protect the metal layer. In particular, when used, the lacquer layer 26 can prevent, for example, the surface of aluminum from being easily oxidized. Therefore, preferably, when used, the lacquer layer is directly applied on the aluminum layer. Further, the lacquer can be used as a printing accelerator.

[0148] The lacquer layer can have a specific mass in the range of, for example, 0.5 g / m 2 ~2 g / m 2 for example.

[0149] Printing layer of the fire-resistant tape The fire-resistant tape may or may not be printed. The printing 27 is not necessarily required for the fire-resistant tape and is simply a layer that may exist as desired for, for example, providing information on the fire-resistant tape.

[0150] The outer surface of the fire-resistant tape may include, for example, the printing 27 and / or the lacquer layer 26. Therefore, the metal layer 23 of the fire-resistant tape 20 may be at least partially covered by the lacquer layer 26 and / or the printing 27.

[0151] Release liner of the fire-resistant tape During storage and transportation, the fire-resistant tape may have a release liner (not shown) on the pressure-sensitive adhesive coating layer 28. Therefore, the pressure-sensitive adhesive coating layer 28 can be placed between the support layer 25 and the release liner. The release liner can protect the pressure-sensitive adhesive coating layer 28. The release liner can further improve the self-winding property of the fire-resistant tape.

[0152] The release liner may have a basis weight in the range of 10 gsm to 200 gsm, preferably in the range of 50 gsm to 150 gsm. The release liner may be, for example, a paper-based release liner, or a plastic-based release liner, or any other type of processable release liner.

[0153] Accordingly, the release liner may comprise a base layer which may be paper or, for example, a polymer film. The release liner may further comprise a release coating layer on at least one surface of the base layer. The release coating may be a silicone-based release coating. Accordingly, the release liner can be easily removed during the installation process in which the refractory tape is adhered to the first surface 11 of the refractory barrier material 10. In the installation process, the release liner may be removed from the refractory tape, and the tape may be adhered to the refractory barrier material to seal a seam between two refractory barrier material sheets.

[0154] Building envelope Referring to FIGS. 3a to 3b, the building envelope 100 comprises the refractory barrier materials 10, 10a, 10b and the refractory tape 20. The refractory tape may be a refractory seam tape used to seal a seam between two refractory barrier material sheets. The building envelope can provide improved sealing performance, thereby improving fire resistance. Furthermore, some barrier properties of the building envelope, such as water vapor barrier properties, can also be improved.

[0155] The refractory tape 20 may be in the form of a roll during storage and transportation and may have a release liner on the adhesive layer. Accordingly, in the installation process, the release liner may be removed from the refractory tape 20, and then the tape may be adhered to the refractory barrier material 10 to seal a seam between two refractory barrier material sheets 10a, 10b.

[0156] The inner surface 22 of the fire-resistant tape provided with the pressure-sensitive adhesive coating layer can be attached to the outer surface 11 of the fire-resistant barrier material 10. The inner surface 22 of the fire-resistant tape may be provided with an acrylic-based pressure-sensitive adhesive coating layer so as to adhere well to the outer surface of the fire-resistant barrier material.

[0157] The fire-resistant tape can be arranged so as to seal the seams of adjacent or overlapping fire-resistant barrier material sheets. The installation process can be substantially easy and safe.

[0158] The sealed seams of the building envelope can be resistant to flames, water vapor, liquids, and air. The building envelope can be configured to protect the building from at least flames. Further, the building envelope can also be configured to protect the building from, for example, moisture.

[0159] To obtain a highly reliable seal 20a between the barrier material sheets 10a, 10b, the first fire-resistant barrier material sheet 10a may overlap the second fire-resistant barrier material sheet 10b by at least 0 cm, preferably at least 3 cm, more preferably at least 5 cm, and most preferably at least 8 cm for the purpose of improving fire resistance, airtightness, and water barrier properties. Further, the first fire-resistant barrier material sheet 10a may overlap the second fire-resistant barrier material sheet 10b by less than 20 cm, preferably less than 15 cm, more preferably less than 12 cm, and most preferably 10 cm or less. The fire-resistant tape 20 can provide sufficient fire resistance, airtightness, and water vapor barrier properties to the sealed seam. However, when the first sheet overlaps the second sheet, the ease of the installation process can be improved. With the fire-resistant tape 20, the first fire-resistant barrier material sheet 10a may not need to overlap the second fire-resistant barrier material sheet 20a. However, the overlapping of the sheets to a certain extent can improve the ease of the installation process.

[0160] The total amount of the fire-resistant tape can be in the range of 2% to 15%, preferably in the range of 4% to 12%, and most preferably in the range of 5% to 10% when calculated from the total outer surface area of the building envelope. Accordingly, the fire-resistant tape can be used to seal the seams of the fire-resistant barrier material sheet. By sealing the fire-resistant barrier material sheet with the fire-resistant tape in the amount described above, it is possible to substantially improve the flame retardancy.

[0161] Furthermore, the seams of the building envelope can be efficiently sealed with the fire-resistant tape 10. Accordingly, the installation method can be a quick and easy method for installing the building envelope 100. Thereby, the cost can be reduced and the effectiveness of the installation process can be enhanced.

[0162] Advantageously, both the fire-resistant barrier material 10 and the fire-resistant tape 20 preferably include the metal layers 13, 23 which are preferably aluminum layers, the flame-retardant adhesive layers 14, 24 which are preferably the flame-retardant two-component or multi-component adhesives, and the fire-resistant support layers 15, 25. Accordingly, it is possible to significantly improve some barrier properties, mechanical properties, and further the fire resistance of the building envelope 100. Furthermore, due to the similar structures of the fire-resistant barrier material and the fire-resistant tape 20, the controllability of at least some properties of the building envelope provided with the sealed seam 20a can be improved.

[0163] The novel building envelope can ensure the airtightness of water, moisture, and air, and can obtain improved radioactivity, rigidity, mechanical strength, and dimensional stability.

[0164] Furthermore, surprisingly, a building envelope - comprising the fire-resistant barrier material sheets 10, 10a, 10b that meet the European fire protection standard Euroclass A2-s1, d0 - The seam between the sheets is sealed using the fire-resistant tape that meets the European fire protection standard Euroclass B-s2, d0. The building envelope can meet the European fire protection standard Euroclass A2-s1, d0 as long as the amount of the fire-resistant seam tape 20 specified from the total outer surface area of the building envelope is 15% or less.

[0165] Vapor barrier The fire-resistant barrier material is preferably a fire-resistant, waterproof, and vapor barrier material sheet.

[0166] The novel building envelope can be used as a vapor barrier for high-rise buildings and public buildings where fire safety is essential. The vapor barrier can further be used to prevent leakage of wind and air that may create hot zones / cold zones in the interior area of the building, as well as to prevent ingress of water and moisture.

[0167] To obtain the barrier property, the fire-resistant barrier material preferably has a structure without through-holes.

[0168] An example of the manufacturing method The fire-resistant barrier material may be a laminate formed by attaching the metal layer to the fire-resistant support layer using the adhesive layer.

[0169] As an example, the fire-resistant barrier material 10 - provides a metal layer 13, - optionally lacquers the metal layer, - provides a fire-resistant support layer 15, - attaches the support layer 15 to the metal layer 13, and - optionally provides a print 17, preferably on the lacquered side, can be manufactured by.

[0170] The refractory barrier material can be manufactured in one step. Its technical effect is to have a cost-effective solution that minimizes the carbon footprint of the resulting product.

[0171] As an example, the method for manufacturing the refractory tape 20 may include the following steps: - Providing a metal layer 23; - Optionally, lacquering the metal layer; - Providing a refractory support layer 25; and - Adhering the support layer 25 to the metal layer 23. These steps may be performed in one pass. Thereafter, the method may further include the following steps: a) Coating a release liner by using an aqueous acrylic adhesive and drying the aqueous acrylic adhesive to form the acrylic pressure-sensitive adhesive coating layer 28; and Adhering the support layer to the dried pressure-sensitive adhesive coating layer 28; or b) Coating the support layer by using an aqueous acrylic adhesive and drying the aqueous acrylic adhesive to form the acrylic pressure-sensitive adhesive coating layer 28; and Adhering a release liner to the dried pressure-sensitive adhesive coating layer 28. And - Slitting the formed material into a narrow refractory tape roll. These may be included.

[0172] Furthermore, when printing is applied, it may be done by using methods known to those skilled in the art.

Example

[0173] Example 1 A refractory barrier material sheet and further a refractory seam tape were manufactured.

[0174] The fire-resistant support layer sheet and the fire-resistant tape were tested in accordance with European fire protection standard EN 13501-1:2007+A1:2009 (valid in 2021).

[0175] The fire-resistant barrier material sheet was able to meet European fire protection standard Euroclass A2-s1, d0.

[0176] Furthermore, the fire-resistant tape was able to meet European fire protection standard Euroclass B-s2, d0.

[0177] Furthermore, a building envelope comprising the fire-resistant barrier material sheet and having the seams between the sheets sealed with the fire-resistant tape was tested in accordance with European fire protection standard EN 13501-1:2007+A1:2009 (valid in 2021). Surprisingly, the entire building envelope comprising the fire-resistant barrier material sheet of Euroclass A2-s1, d0 and the fire-resistant building envelope tape of Euroclass B-s2, d0 was able to meet European fire protection standard Euroclass A2-s1, d0 when the amount of the fire-resistant seam tape specified from the total outer surface area of the building envelope was 15% or less.

[0178] Example 2 The building envelope according to Example 1, as well as the fire-resistant tape and the fire-resistant barrier material sheet, were further tested for Sd and W1 watertightness.

[0179] According to the test results, the Sd and W1 of the fire-resistant barrier material sheet were always over 1500 m, and the Sd and W1 of the fire-resistant tape were always over 1500 m. Furthermore, the Sd and W1 values of the building envelope comprising the fire-resistant barrier material sheet and up to 15% of the fire-resistant tape were also over 1500 m.

[0180] Many advantages can be obtained with the novel solution. For example, it is possible to obtain a building envelope with improved flame retardancy and good mechanical properties. Thus, the building envelope can improve the fire resistance of the building envelope. Furthermore, the building envelope can have good vapor barrier properties, strength levels, and handleability.

[0181] The present invention is not limited to only the examples presented in the figures and the above description, and may be modified within the scope of the appended claims. Aspects according to the present disclosure also include the following aspects. <1> A building envelope (100) comprising a fire-resistant tape (20) and a fire-resistant barrier material (10), wherein the fire-resistant tape (20) seals a seam between a first sheet (10a) and a second sheet (10b) of the fire-resistant barrier material. A) The fire-resistant barrier material (10) - preferably a metal layer (13) of the fire-resistant barrier material (10) that is an aluminum layer having a thickness in the range of 6 μm to 100 μm. - a support layer (15) of the fire-resistant barrier material (10), · having a basis weight in the range of 50 g / m 2 ~500 g / m 2 of a glass fiber fabric, or · having a basis weight in the range of 5 g / m 2 ~50 g / m 2 of a glass fiber scrim, comprising a support layer (15), and - an adhesive layer (14) of the fire-resistant barrier material (10) between the metal layer (13) and the support layer (15), wherein the adhesive of the adhesive layer has a basis weight in the range of 0.5 g / m 2 ~15 g / m 2 of the adhesive layer (14). Comprising and B) The fire-resistant tape - preferably a metal layer (23) of the fire-resistant tape (20) that is an aluminum layer having a thickness in the range of 6 μm to 100 μm. - a support layer (25) of the fire-resistant tape (20), - having a basis weight in the range of 50 g / m 2 ~500 g / m 2 of a glass fiber fabric, or - having a basis weight in the range of 5 g / m 2 ~50 g / m 2 of a glass fiber scrim, comprising a support layer (25), - an adhesive layer (24) of the fire-resistant tape between the metal layer (23) and the support layer (25) of the fire-resistant tape, having a basis weight in the range of 0.5 g / m 2 ~15 g / m 2 and - an acrylic pressure-sensitive adhesive coating layer (28) on the support layer (25) of the fire-resistant tape, having a basis weight in the range of 20 g / m 2 ~200 g / m 2 of the building envelope (100). <2> A fire-resistant seam tape for a building, - preferably a metal layer (23) having a thickness in the range of 6 μm to 100 μm. - a support layer (25), - having a basis weight in the range of 50 g / m ~500 g / m 2 of a glass fiber fabric, or 2 - having a basis weight in the range of 5 g / m ~50 g / m 2 of a glass fiber scrim. 2 ​ A support layer (25), - An adhesive layer (24) between the metal layer (23) and the support layer (25), having a specific mass in the range of 0.5 g / m 2 ~15 g / m 2 , and - An acrylic pressure-sensitive adhesive coating layer (28) on the support layer (25), having a specific mass in the range of 20 g / m 2 ~200 g / m 2 , A fire-resistant seam tape. <3> The building envelope according to <1>, configured to meet the European fire protection standard Euroclass A2-s1, d0, or The fire-resistant seam tape according to <2>, configured to meet the European fire protection standard Euroclass B-s2, d0. <4> The building envelope according to <1> or <3>, wherein the adhesive layer (14, 24) contains a two-component or multi-component adhesive, preferably a flame-retardant two-component or multi-component adhesive, or The fire-resistant seam tape according to <2> or <3>, wherein the adhesive layer (24) contains a two-component or multi-component adhesive, preferably a flame-retardant two-component or multi-component adhesive. <5> The building envelope according to any one of <1> or <3> to <4>, or the fire-resistant seam tape according to any one of <2> to <4>, wherein the specific mass of the acrylic pressure-sensitive adhesive coating layer (28) is in the range of 30 g / m 2 ~80 g / m 2 . <6> The building envelope according to any one of <1> or <3> to <5>, or the fire-resistant seam tape according to any one of <2> to <5>, wherein the acrylic pressure-sensitive adhesive coating layer (28) is a flame-retardant acrylic pressure-sensitive adhesive coating layer containing at least one flame-retardant component. <7> The building envelope according to any one of <1> or <3> to <6>, or 2 ~3 g / m 2 the fire-resistant seam tape according to <2> to <6>, wherein the specific mass of the adhesive layer (24) is in the range of 0.7 g / m ~3 g / m 2 . 2 <8> The building envelope according to any one of <1> or <3> to <7>, comprising the glass fiber fabric, and each glass fiber fabric having a specific mass in the range of 70 g / m ~90 g / m2 , or 2 The fire-resistant seam tape according to any one of <2> to <7>, comprising the glass fiber fabric, and the glass fiber fabric having a specific mass in the range of 70 g / m ~90 g / m 2 . 2 ​ <9> The thickness of the metal layer (13, 23) is in the range of 30 μm to 50 μm, the building envelope according to any one of <1> or <3> to <8>, or The thickness of the metal layer (23) is in the range of 30 μm to 50 μm, the fire-resistant seam tape according to any one of <2> to <8>. <10> The support layer (15, 25) comprises at least 90% by weight of glass fibers based on the total weight of each support layer, the building envelope according to any one of <1> or <3> to <9>, or The support layer (25) comprises at least 90% by weight of glass fibers based on the total weight of each support layer, the fire-resistant seam tape according to any one of <2> to <9>. <11> At least one of the support layers (15, 25) preferably comprises sized glass fibers containing polyvinyl alcohol, the building envelope according to any one of <1> or <3> to <10>, or The support layer (25) comprises sized glass fibers containing polyvinyl alcohol, the fire-resistant seam tape according to any one of <2> to <10>. <12> The total amount of the fire-resistant seam tape is 15% or less based on the total outer surface area of the building envelope, the building envelope according to <1> or any one of <3> to <11>.

Claims

1. A building envelope (100) comprising a fire-resistant tape (20) and a fire-resistant barrier material (10), wherein the fire-resistant tape (20) seals a seam between a first sheet (10a) and a second sheet (10b) of the fire-resistant barrier material, A) The fire-resistant barrier material (10) comprises - a metal layer (13) of the fire-resistant barrier material (10), - a support layer (15) of the fire-resistant barrier material (10), 50 g / m ２ Up to 500 g / m ２ or a glass fiber fabric having a specific mass in the range of ・ 5 g / m ２ ~50 g / m ２ having a specific mass in the range of comprising a support layer (15), and - An adhesive layer (14) of the refractory barrier material (10) between the metal layer (13) and the support layer (15), wherein the adhesive of the adhesive layer has a specific mass in the range of 0.5 g / m ２ to 15 g / m ２ and the adhesive layer (14) having a specific mass in the range of comprising, and B) The fire-resistant tape comprises - a metal layer (23) of the fire-resistant tape (20), - a support layer (25) of the fire-resistant tape (20), - 50 g / m ２ ~ 500 g / m ２ having a specific mass in the range of, or - 5 g / m ２ ~ 50 g / m ２ having a specific mass in the range of comprising a support layer (25), - Located between the metal layer (23) of the refractory tape and the support layer (25) of the refractory tape, with a specific mass in the range of 0.5 g / m ２ to 15 g / m ２ The adhesive layer (24) of the refractory tape (20) having a specific mass in the range of, and - on the support layer (25) of the refractory tape, having a specific mass in the range of 20 g / m ２ to 200 g / m ２ of an acrylic pressure-sensitive adhesive coating layer (28), comprising a building envelope (100).

2. A fire-resistant seam tape for a building, - a metal layer (23), - a support layer (25), - 50 g / m ２ ~ 500 g / m ２ having a specific mass in the range of, or - 5 g / m ２ ~ 50 g / m ２ having a specific mass in the range of comprising a support layer (25), - An adhesive layer (24) between the metal layer (23) and the support layer (25), having a specific mass in the range of 0.5 g / m ２ to 15 g / m ２ and - on the support layer (25), having a specific mass in the range of 20 g / m ２ to 200 g / m ２ and an acrylic pressure-sensitive adhesive coating layer (28) having a specific mass in the range of 20 g / m comprising a fire-resistant seam tape.

3. The building envelope according to claim 1, configured to meet the European fire protection standard Euroclass A2-s1, d0, or The fire-resistant seam tape according to claim 2, configured to meet the European fire protection standard Euroclass B-s2, d0.

4. The building envelope according to claim 1, wherein the adhesive layer (14, 24) contains a two-component or multi-component adhesive, or The fire-resistant seam tape according to claim 2, wherein the adhesive layer (24) contains a two-component or multi-component adhesive.

5. The specific mass of the acrylic pressure-sensitive adhesive coating layer (28) is in the range of 30 g / m ２ to 80 g / m ２ The building envelope according to claim 1, or the fire-resistant seam tape according to claim 2, wherein the range is as described above.

6. The building envelope according to claim 1, or the fire-resistant seam tape according to claim 2, wherein the acrylic pressure-sensitive adhesive coating layer (28) is a fire-resistant acrylic pressure-sensitive adhesive coating layer containing at least one flame-retardant component.

7. The specific mass of the adhesive layer (14, 24) is 0.7 g / m ２ to 3 g / m ２ in the range of, the building envelope according to claim 1, or The specific mass of the adhesive layer (24) is 0.7 g / m ２ to 3 g / m ２ and the fire-resistant seam tape according to claim 2 is in this range.

8. comprising the glass fiber fabric, each glass fiber fabric having a specific mass in the range of 70 g / m ２ to 90 g / m ２ of the building envelope according to claim 1, or Comprising the glass fiber fabric, the glass fiber fabric having a specific mass in the range of 70 g / m ２ to 90 g / m ２ The fire-resistant seam tape according to claim 2, having a specific mass within the range of

9. The building envelope according to claim 1, wherein the thickness of the metal layer (13, 23) is in the range of 30 μm to 50 μm, or The fire-resistant seam tape according to claim 2, wherein the thickness of the metal layer (23) is in the range of 30 μm to 50 μm.

10. The building envelope according to claim 1, wherein the support layer (15, 25) comprises at least 90% by weight of glass fibers based on the total weight of each support layer, or The fire-resistant seam tape according to claim 2, wherein the support layer (25) comprises at least 90% by weight of glass fibers based on the total weight of each support layer.

11. The building envelope according to claim 1, or at least one of the support layers (15, 25) comprises sized glass fibers, or The fire-resistant seam tape according to claim 2, wherein the support layer (25) comprises sized glass fibers.

12. The building envelope according to claim 1, wherein the total amount of the fire-resistant seam tape is 15% or less of the total outer surface area of the building envelope.

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