Fire-resistant partition drywall and method for making the same

Abstract

Fire-resistant partition drywall (10) comprising a sub-structure, panels mounted on the sub-structure and a window (12), the window (12) being received in a housing formed by panels, the sub-structure comprising a window frame covered with panels, so as to obtain a panelled window frame. Method for making the fire-resistant partition drywall.

Description

FIRE-RESISTANT PARTITION DRYWALL AND METHOD FOR MAKING THE SAMEField of the disclosure

[0001] The present disclosure relates to fire-resistant partition drywall, in particular fire-resistant partition drywall having a window. The present disclosure also related to method for making such fire-resistant partition drywall.Background of the disclosure

[0002] Fire-resistant partition drywall having a window are known. Generally, the fire-resistant partition drywall comprises a sub-structure on which panels are mounted on both faces of the sub-structure leaving a hole in the partition drywall for receiving the window.

[0003] The window is generally inserted into a separate metallic window frame attached to a window frame of the sub-structure.

[0004] However, installing such separate metallic window frame may prove cumbersome. Moreover, such separate metallic window frame adds to the costs of the fire-resistant partition drywall as well as increases the carbon footprint of the fire-resistant partition drywall.Summary of the disclosure

[0005] Currently, it remains desirable to provide a fire-resistant partition drywall which provides improved fire-resistant properties together with a reduction of the costs and the carbon footprint.

[0006] The present disclosure aims to remedy at least part of these drawbacks.

[0007] Therefore, according to embodiments of the present disclosure, a fire- resistant partition drywall is provided. The fire-resistant partition drywall comprises a sub-structure, panels mounted on the sub-structure and a window, the window being received in a housing formed by panels, the sub-structure comprising a window frame covered with panels, so as to obtain a panelled window frame.

[0008] The sub-structure is generally built with metallic studs. The studs may be hollow section studs, such as C-section studs or U-section studs. The flangesof the studs may be plain and / or the flanges may comprise embossed textures on the surface which serve to improve the mechanical and / or acoustic characteristics of the stud. Such embossed textures may be a pattern of pointlike depressions and / or elevations or may be one or more linear grooves.

[0009] It is understood that the window frame of the sub-structure is not a separate metallic window frame, as in the known prior art. Indeed, the window frame of the sub-structure is part of the sub-structure itself.

[0010] The sub-structure is covered on both sides by panels.

[0011] As the housing is formed by panels, the size of the housing may be adapted to the size of the window, in width, height and thickness, by cutting the panels to the adapted size and the location of the window is flexible.

[0012] Thanks to the housing being formed by panels and the window frame being a panelled window frame, the fire-resistant properties of the fire-resistant partition drywall is improved. Indeed, there is no thermal bridge as in the prior art, where thermal bridges may exist between the separate metallic window frame and the window frame of the sub-structure.

[0013] Moreover, the carbon footprint of the fire-resistant partition drywall is reduced thanks to avoiding use of additional metallic parts, such as the separate metallic window frame.

[0014] Furthermore, compared to separate metallic window frame used in the prior art, costs related to the fire-resistant partition drywall may be reduced up to 30%, when compared to fire-resistant partition drywall with a separate aluminium window frame.

[0015] From an aesthetic point of view, such fire-resistant partition drywall gives the viewer the impression of the frameless window. It also allows for inserting a plurality of windows into the housing. The windows may be side-by- side with one another. When the windows are side-by-side with one another, no metallic window frame is present, and therefore visible, between two adjacent windows.

[0016] It is understood that panels may include large panels as well as strips.

[0017] In some embodiment, the fire-resistant partition drywall comprises a plurality of windows, the windows being separated from one another.

[0018] The housing being formed by panels, the design of the fire-resistant partition panel may be adapted to accommodate a desired number of windows,the windows may have different size. The design of the fire-resistant partition drywall is flexible.

[0019] In some embodiments, the panels are gypsum panels.

[0020] As non-limiting examples, gypsum panels may be gypsum panels having a good mechanical resistance and fire resistance, such as gypsum panels of the type commercialized under the Habito® trademark and / or Rigidur® trademark and / or Gyproc® FireStop trademark and / or Rigips Duraline and / or Gyproc® plasterboards classified X and / or CertainTeed Type X.

[0021] As non-limiting examples, the gypsum panels may have thickness equal to or greater than 12 mm.

[0022] In some embodiments, the housing comprises strips.

[0023] In some embodiments, the window is a fire-resistant window.

[0024] In some embodiments, the window comprises two glass panes separated by a layer of intumescent interlayer.

[0025] In some embodiments, the window rests on support blocks.

[0026] As non-limiting example, the support blocks may comprise calcium silicate.

[0027] As non-limiting example, the support blocks may be located at the vertical of the sub-structure vertical studs, in particular vertical support window frame studs.

[0028] As non-limiting example, the support blocks may be non-continuous between the panelled window frame and the window.

[0029] In some embodiments, the fire-resistant partition drywall comprises two layers of panels, a first layer being mounted on the sub-structure and a second layer being mounted on the first layer.

[0030] It is understood that part of the panels of the first layer forms the panelled window frame.

[0031] As non-limiting examples, the first layer may comprise gypsum panels of the type commercialized under the Habito® trademark and / or Rigidur® trademark and / or Gyproc® FireStop trademark and / or Rigips Duraline and / or Gyproc® plasterboards classified X and / or CertainTeed Type X.

[0032] As non-limiting examples, the second layer may comprise gypsum panels having a good mechanical resistance, such as gypsum panels of the typecommercialized under the Habito® trademark and / or Rigidur® trademark and / or Gyproc® FireStop trademark and / or Rigips Duraline and / or Gyproc® plasterboards classified X and / or CertainTeed Type X.

[0033] In some embodiments, the housing is formed at least partially by the second layer.

[0034] In some embodiments, the fire-resistant partition drywall comprises an external layer of panels.

[0035] In some embodiments, the housing is formed at least partially by the second layer and by the external layer.

[0036] In some embodiments, a thickness of the fire-resistant partition drywall is larger than a thickness of the window.

[0037] In some embodiments, an intumescent layer is attached to the panelled window frame.

[0038] In some embodiments, an intumescent layer is attached to the periphery of the window, for example on the thickness sides of the window.

[0039] The intumescent layer is located between the panelled window frame and the window. The intumescent layer may be present on the full periphery of the panelled window frame. The intumescent layer may or may not be in direct contact with the window on the periphery of the window.

[0040] As non-limiting example, the intumescent layer may be an intumescent tape glued to the panelled window frame.

[0041] The intumescent layer allows for better insulation when the temperature increases above a certain threshold, for example in case of fire. Indeed, once the temperature threshold is exceeded, the intumescent layer increases volume and fills at least partially spaces that may have been present at room temperature between the intumescent layer and the window, thus improving the insulation between the different elements of the fire-resistant partition drywall. The intumescent layer also restricts the movement of hot gases and flames to penetrate through the closed up spaces, thus reducing risks of failure of the fire-resistant partition drywall.

[0042] In some embodiments, the support blocks are located between the intumescent layer and the window.

[0043] In some embodiments, the fire-resistant partition drywall comprises a fire-resistant gasket between the window and the housing.

[0044] It is understood that the fire-resistant gasket is present on each side of the window between the window and the housing. The fire-resistant gasket improves the insulation between the window and the housing, thus improving the fire-resistance of the overall fire-resistant partition drywall.

[0045] As non-limiting example, the fire-resistant gasket may comprise ceramic.

[0046] As non-limiting example, the fire-resistant gasket may be a fire- resistant tape.

[0047] As non-limiting example, the fire-resistant gasket may be glued to the window.

[0048] In some embodiments, the fire-resistant partition drywall comprises corner beads fixed on the panels.

[0049] The corner beads may improve the mechanical resistance of sharp angle and / or edge of panels and / or may serve as support for elements of the fire- resistant partition drywall.

[0050] In some embodiments, the fire-resistant gasket may be glued to a corner bead.

[0051] In some embodiments, the fire-resistant partition wall comprises mineral wool.

[0052] As non-limiting examples, the mineral wool may be stone mineral wool or glass mineral wool.

[0053] The mineral wool may be disposed between two opposite side of the fire-resistant partition drywall.

[0054] In some embodiment, the mineral wool has a density equal to or greater than 16 kg / m3.

[0055] In some embodiment, the mineral wool has a density equal to or greater than 50 kg / m3.

[0056] In some embodiment, the mineral wool has a density equal to or greater than 100 kg / m3

[0057] In some embodiments, the fire-resistant partition drywall has at least 30 minutes thermal insulation measured according to EN1364-1 :2015.

[0058] In some embodiments, the fire-resistant partition drywall has at least 60 minutes thermal insulation measured according to EN1364-1 :2015.

[0059] In some embodiments, the fire-resistant partition drywall has an integrity of at least 120 minutes measured according to EN 1364-1 :2015.

[0060] In some embodiments, the fire-resistant partition drywall has a reduction of thermal radiation of at least 15 kW / m2at a distance of 1 meter for at least 30 minutes measured according to EN1364-1 :2015.

[0061] In some embodiments, the fire-resistant partition drywall has a reduction of thermal radiation of at least 15 kW / m2at a distance of 1 meter for at least 60 minutes measured according to EN1364-1 :2015.

[0062] In some embodiments, the fire-resistant partition drywall has a reduction of thermal radiation of at least 15 kW / m2at a distance of 1 meter for at least 120 minutes measured according to EN 1364-1 :2015.

[0063] According to further embodiments, a method for making a fire-resistant partition drywall is provided. The method comprises the following steps:- building a sub-structure with metallic studs, the sub-structure comprising a window frame;- covering the window frame with panels so as to form a panelled window frame;- building a first part of the housing for a window on the panelled window frame with panels;- inserting the window into the first part of the housing;- building a second part of the housing with panels, so as to obtain a fire-resistant partition drywall with a window received in the housing formed by panels.

[0064] According to further embodiments, a method for making a fire-resistant partition drywall is provided. The method comprises the following steps:- building a sub-structure with metallic studs, the sub-structure comprising a window frame;- covering the window frame with panels so as to form a panelled window frame;- inserting a window into the panelled window frame;- building a first part of the housing for the window on the panelled window frame with panels;- building a second part of the housing with panels, so as to obtain a fire-resistant partition drywall with the window received in the housing formed by panels.

[0065] In some embodiments, the method comprises a step of placing a fire- resistant gasket between the first part of the housing and the window and between the second part of the housing and the window.

[0066] In some embodiments, the housing comprises two layers of panels, a first layer being mounted on the sub-structure and a second layer being mounted on the first layer.

[0067] In some embodiments, the panels are gypsum panels.

[0068] In some embodiments, the housing comprises strips.

[0069] In some embodiments, the window comprises two glass panes separated by an intumescent interlayer.

[0070] In some embodiments, the method comprises a step of attaching an intumescent layer to the panelled window frame.

[0071] In some embodiments, the method comprises a step of disposing support blocks on a lower part of the panelled window frame.

[0072] In some embodiments, the method comprises a step of disposing support blocks the intumescent layer.

[0073] In some embodiments, the method comprises a step of attaching corner beads on the fire-resistant partition drywall.

[0074] In some embodiments, the method comprises a step of applying a finishing layer.

[0075] The finishing layer allows for masking the fixing elements of the panels as well as the panels themselves and the joints between different panels.

[0076] In some embodiments, the step of applying a finishing layer comprises a step of masking fixing elements of the panels, such as screws, and / or joints between panels with a jointing compound.

[0077] In some embodiments, the step of applying de finishing layer comprises a step of applying a smoothing compound which is applied over the jointing compound to provide smooth surface. Optionally, the smoothing compound may be applied over the whole surface of the partition drywallBrief description of the drawings

[0078] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

[0079] Figure 1 is a schematic perspective view of a fire-resistant partition drywall with a window, the fire-resistant partition drywall having a finishing layer.

[0080] Figure 2 is a schematic perspective view of a fire-resistant partition drywall before applying a finishing layer.

[0081] Figure 3 is a partial sectional view of Fig. 2 along section plane Ill-Ill.

[0082] Figure 4 is a schematic perspective view of a sub-structure with a window frame.

[0083] Figure 5 is an exemplary partial perspective view of a window.

[0084] Figure 6 is a partial sectional view of Fig. 1 along section plane VI-VI before applying a finishing layer.

[0085] Figures 7-18 illustrate different steps of the method for making a fire- resistant partition drywall.

[0086] Figure 19 is a flowchart showing an exemplary method for making a fire-resistant partition drywall.

[0087] Figure 20 is a flowchart showing another exemplary method for making a fire-resistant partition drywall.Description of the embodiments

[0088] Reference will now be made in detail of the present exemplary embodiments of the disclosure, embodiments of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0089] Figure 1 is a schematic perspective view of a fire-resistant partition drywall 10 comprising a window 12. The fire-resistant partition drywall 10 of Figure 1 has a finishing layer.

[0090] Figure 2 is a schematic perspective view of an embodiment of the fire- resistant partition drywall 10 before applying a finishing layer.

[0091] The fire-resistant partition drywall 10 of Figure 2 comprises the window 12. As shown on Figure 2, the fire-resistant partition drywall 10 comprises panels 14 having different size and shape. Some panels 14 are strips cut out of larger panels. The panels 14 are fixed for example by screws 34.

[0092] In the embodiment of Figure 2, around the window 12, the panels 14 are cut with 45° angle.

[0093] Although a single window 12 is represented in Figures 1 and 2, the fire-resistant partition drywall 10 may comprise a plurality of windows 12. Thewindows 12 may be separated from one another, i.e., received in different housings or the windows 12 may be side-by-side with one another, i.e., received in a single housing, or a combination thereof.

[0094] Figure 3 is a partial sectional view of Fig. 2 along section plane Ill-Ill. Figure 3 shows the sub-structure 16 together with panels AA, 14AB, MBA, 14BB, 14CB and the window 12.

[0095] The elements of the sub-structure 16 are described in more detail below based on Figure 4.

[0096] The vertical panels MAA and the horizontal panels 14AB form a first layer 14A of panels, the vertical panels MBA and the horizontal panels 14BB form a second layer 14B of panels and the horizontal panels 14CB form an external layer 14C of panels.

[0097] Horizontal panels 14AB, 14BB, 14CB may also be identified as strips 14AB, 14BB, 14CB.

[0098] The first layer 14 of panels, the second layer 14B of panels and the external layer 14C of panels are disposed on both sides of the sub-structure 16.

[0099] In the embodiment of Figure 3, the first layer 14A of panels forms partially a panelled window frame and the second layer 14B of panels with the external layer 14C of panels form at least partially the housing.

[0100] In the embodiment of Figure 3, the vertical panel MBA of the second layer 14B of panels together with the horizontal panel 14CB of the external layer 14C of panels are cut at 45° and adjusted to form a 90° sharp angle. The vertical panel MBA of the second layer 14B of panels and the horizontal panel 14CB of the external layer 14C of panels may be obtained from a unique panel with a cut allowing to fold the unique panel and obtain a 90° L-shaped panel comprising the vertical panel MBA of the second layer 14B of panels and the horizontal panel 14CB of the external layer 14C of panels.

[0101] As shown on Figure 3, the fire-resistant partition drywall 10 may comprises mineral wool 26 disposed between the sub-structure 16 and the panels 14, in particular between the first layer 14A of panels. The fire-resistant partition drywall 10 may not comprise mineral wool.

[0102] As shown on Figure 3, an intumescent layer 28 is attached to the panelled window frame.

[0103] In the embodiment of Figure 3, the intumescent layer 28 is located between the panelled window frame and the window 12. The intumescent layer 28 is present on the full periphery of the panelled window frame.

[0104] The intumescent layer 28 may be an intumescent tape glued to the panelled window frame.

[0105] As shown on Figure 3, the window 12 rests on support blocks 30. The support blocks 30 are located between the intumescent layer 28 and the window 12. Thus, the intumescent layer 28 is not in direct contact with the window 12 on the periphery of the window 12.

[0106] As non-limiting example, the support blocks 30 are strips of calcium silicate, located at the vertical of the sub-structure vertical support window frame studs 24D. The support blocks 30 are non-continuous between the panelled window frame and the window 12.

[0107] As non-limiting example, the support blocks 30 may have a width equal to the thickness of the window 12, a length of 80 mm and a thickness of 5 mm, the thickness of the support blocks 30 being the smaller dimension of the support blocks 30. In the embodiment of Figure 3, two support blocks 30 are stacked on one another.

[0108] As shown on Figure 3, the window 12 is inserted in the housing.

[0109] As shown on Figure 3, the fire-resistant partition drywall 10 comprises a fire-resistant gasket 32 between the window 12 and the housing. The fire- resistant gasket 32 is present on each side of the window 12.

[0110] As non-limiting example, the fire-resistant gasket 32 is a fire-resistant ceramic tape glued between the window 12 and the housing, for example glued on the window 12.

[0111] The panels 14 are disposed in a similar way on the other sides of the housing (vertical and upper sides of the housing), as can be seen on Figure 13 for example, except for the support blocks 30 that are only inserted between the window 12 and the lower side of the housing to support the window 12 in the housing. Along the vertical window frame stud 24A, the strips 14AB, 14BB, 14CB are vertical instead of horizontal, the strip 14AB covering the vertical window frame stud 24A.

[0112] Figure 4 is a schematic perspective view of a sub-structure 16 with a window frame 24A, 24B, 24C.

[0113] In the embodiment of Figure 4, the sub-structure 16 comprises metallic studs. In particular, the sub-structure 16 comprises a lower rail 18 fixed to the floor of a room and an upper rail 20 fixed to the ceiling of the room. The substructure 16 also comprises vertical studs 22 fixed to both the lower rail 18 and the upper rail 20.

[0114] In the embodiment of Figure 4, the sub-structure 16 comprises a window frame defined by two vertical window frame studs 24A, a lower window frame stud 24B and an upper window frame stud 24C. As reinforcement of the lower window frame stud 24B and of the upper window frame stud 24C, the substructure 16 comprises a plurality of vertical support window frame studs 24D.

[0115] The number of vertical support window frame studs 24D depends upon the size of the window 12.

[0116] Figure 5 is an exemplary partial perspective view of the window 12.

[0117] In the embodiment of Figure 5, the window 12 comprises a first glass pane 12A and a second glass pane 12B separated by a layer of intumescent interlayer 12C. The window 12 also comprises at the periphery of the window 12 a primary sealant 12D and a secondary sealant 12E.

[0118] Figure 6 is a partial sectional view of Figure 1 along section plane VIVI of another embodiment of the fire-resistant partition drywall 10 before applying a finishing layer.

[0119] The section plane VI-VI of Figure 1 is similar to the section plane Ill-Ill of Figure 2, the section plane being in a vertical support window frame stud 24D.

[0120] The embodiment of Figure 6 is similar to the embodiment of Figure 3. The studs forming the window frame 24, i.e., the vertical window frame studs 24A, the lower window frame stud 24B and the upper window frame stud 24C have a different section from the section of the embodiment of Figure 3.

[0121] As shown in Figure 6 for the lower window frame stud 24B, the lower window frame stud 24B comprises a hollow section body 24BA and two flanges 24BB, the flanges 24BB allowing to fix the vertical support window frame stud 24D to the lower window frame stud 24B. In a similar manner, the flanges of the upper window frame stud 24C allow to fix the vertical support window frame stud 24D to the upper window frame stud 24C and the flanges of the vertical window frame stud 24A allow to fix the vertical window frame stud 24A on a vertical stud 22 of the sub-structure 16.

[0122] As non-limiting example, the hollow section body 24BA may be made from two C-section studs attached together, for example by friction and / or by screws. The two flanges 24BB may be made from one piece, for example a bisection stud that is assembled to the hollow section body 24BA by friction and / or screws.

[0123] In the embodiment of Figure 6, the vertical panel BA of the second layer 14B of panels together with the horizontal panel 14CB of the external layer 14C of panels are not cut at 45° and adjusted to form a 90° sharp angle.

[0124] In the embodiments of Figure 6, the support blocks 30 have a width greater than the thickness of the window 12 and a length of 80 mm and a thickness of 5 mm, the thickness of the support blocks 30 being the smaller dimension of the support blocks 30. In the embodiment of Figure 6, two support blocks 30 are stacked on one another.

[0125] In the embodiment of Figure 6, the fire-resistant partition drywall 10 comprises corner beads 36, for example metallic corner beads.

[0126] In the embodiment of Figure 6, the fire-resistant gasket 32 is glued to a flange of a corner bead 36A having the other flange fixed between the horizontal panel 14AB of the first layer 14A of panels and the horizontal panel 14BB of the second layer 14B of panels. The corner bead 36A is a L-section corner bead.

[0127] In the embodiment of Figure 6, two metallic corner beads 36B, 36C protect the edges of the horizontal panel 14CB of the external layer 14C. As nonlimiting example, in the embodiment of Figure 6, the corner bead 36B is a bisection corner bead and the corner bead 36C is a b-section corner bead.

[0128] As shown on the previous figures, a thickness of the fire-resistant partition drywall 10 is larger than a thickness of the window 12.

[0129] As non-limiting examples, the panels may be Habito® panels and / or Rigidur® panels and / or Gyproc® FireStop panels and / or and / or Rigips Duraline and / or and / or Gyproc® plasterboards classified X panels and / or CertainTeed Type X panels.

[0130] As non-limiting example, the fire-resistant gasket 32 may be of the type commercialized under the Kerafix® trademark, for example Kerafix® 2000.

[0131] As non-limiting example, the intumescent layer 28 may be of the type commercialized under the Kerafix® trademark, for example Kerafix® Flexpress 100.

[0132] As non-limiting example, when the window 12 is of large dimensions and therefore weight, for example 100 kg or more, the horizontal panel 14AB of the first layer 14A of panels may be and / or Rigips Duraline panels.

[0133] A fire-resistant partition drywall 10 was build according to the embodiment of Figure 6 with two layers of Habito® panels 15 mm thick, with a Contraflam Lite 120 window, fire-resistant gasket 32 Kerafix® 2000, intumescent layer 28 Kerafix® Flexpress 10 and support blocks 30 Flammi having 5 mm thickness.

[0134] The fire-resistant partition drywall 10 successfully pasts the tests and has shown to exhibit at least 30 minutes thermal insulation measured according to EN 1364-1 :2015, an integrity of at least 120 minutes measured according to EN1364-1 :2015 and a reduction of thermal radiation of at least 15 kW / m2at a distance of 1 meter for at least 120 minutes measured according to EN1364- 1 :2015.

[0135] Figures 7-18 illustrate different steps of the method 100, see Figure 19, for making the fire-resistant partition drywall 10 of Figure 6.

[0136] The method 100 comprises a step of building 102 the sub-structure 16, the sub-structure 16 comprising a window frame 24A, 24B, 24C (see figure 4).

[0137] Figure 7 is a sectional view of the window frame of the sub-structure 16 showing the lower window frame stud 24B taken at a vertical support window frame stud 24D. The lower window frame stud 24B comprises the hollow section body 24BA and two flanges 24BB, the flanges 24BB allowing to fix the vertical support window frame stud 24D to the lower window frame stud 24B.

[0138] In the embodiment of Figure 7, mineral wool 26 has also been represented.

[0139] The method 100 comprises a step of covering 104 the window frame 24A, 24B, 24C with panels 14 so as to form a panelled window frame, which is illustrated at Figures 8 and 9.

[0140] Figure 8 shows the vertical panels 14AA of the first layer 14A of panels being fixed on the sub-structure 16, the vertical panels AA being flush with the lower window frame stud 24B.

[0141] Figure 9 shows the horizontal panel 14AB of the first layer 14A of panels being fixed on top of the lower window frame stud 24B and covering the upper edge of the vertical panels AA of the first layer 14A.

[0142] The method 100 comprises a step of building 106 a first part of the housing for a window on the panelled window frame with panels, which is illustrated at Figures 10 to 12.

[0143] Figure 10 shows the horizontal panel 14BB of the second layer 14B of panels being fixed on the horizontal panel 14AB the of the first layer 14A of panels. The horizontal panel 14BB is also fixed to the sub-structure 16, in particular to the lower window frame stud 24B by screws 34. A first flange of the corner bead 36A is also fixed through the screw 34. The fire-resistant gasket 32 is attached to a second flange of the corner bead 36A.

[0144] Figure 11 shows the vertical panel BA of the second layer 14B of panels being fixed on the vertical panel AA of the first layer 14A of panels, the edge of the vertical panel MBA of the second layer 14B of panels being flushed with the horizontal panel 14BB of the second layer 14B of panels.

[0145] Figure 12 shows the horizontal panel 14CB of the external layer 14C of panel being fixed to the horizontal panel 14BB of the second layer 14B of panels. The sharp edges of the horizontal panel 14CB of the external layer 14C of panels is protected by two corner beads 36B and 36C.

[0146] The method 100 comprises a step of inserting 108 the window 12 into the first part of the housing, which is illustrated at Figures 13 to 15.

[0147] Figure 13 shows a perspective view of the first part of the housing, the corner bead 36A and the fire-resistant gasket 32 not being shown.

[0148] Figure 14 shows a sectional view of the first part of the housing with the corner bead 36A and the fire-resistant gasket 32.

[0149] As shown on Figures 13 and 14, the step of inserting 108 the window 12 into the first part of the housing may comprise a step of attaching the intumescent layer 28 to the periphery of the panelled window frame.

[0150] As shown on Figures 13 and 14, the step of inserting 108 the window 12 into the first part of the housing may comprise a step of disposing support blocks 30 on the lower part of the panelled window frame, on top of the intumescent layer 28.

[0151] Figure 15 shows the window 12 being disposed on top of the support blocks 30 and in contact with the fire-resistant gasket 32.

[0152] The method 100 comprises a step of building 110 a second part of the housing with panels, so as to obtain a fire-resistant partition drywall with a window received in the housing formed by panels, which is illustrated at Figures 16 to 18.

[0153] Figures 16 to 18 illustrate similar steps as those illustrated in Figures 10 to 12.

[0154] The method 100 may comprise a step of applying 112 a finishing layer. The finishing layer allows for masking the fixing elements of the panels 14 as well as the panels 14 themselves and the joints between different panels 14.

[0155] When corner beads 36 are used, the finishing layer masks the corner beads 36.

[0156] The step of applying 112 a finishing layer may comprise a step of masking fixing elements of the panels, such as screws, and / or joints between panels with a jointing compound.

[0157] The step of applying 112 a finishing layer may comprise a step of applying a smoothing compound which is applied over the jointing compound to provide smooth surface. Optionally, the smoothing compound may be applied over the whole surface of the partition drywall.

[0158] Figure 20 is a flowchart showing another exemplary method 200 for making the fire-resistant partition drywall of Figure 3.

[0159] The method 200 comprises a step of building 102 the sub-structure 16, the sub-structure 16 comprising a window frame 24A, 24B, 24C (see figure 4).

[0160] The method 200 comprises a step of covering 104 the window frame with panels so as to form a panelled window frame.

[0161] The method 200 comprises a step of inserting 108 the window into the panelled window frame.

[0162] The method 200 comprises a step of building 106 a first part of the housing for the window on the panelled window frame with panels.

[0163] The method 200 comprises a step of building 110 a second part of the housing with panels, so as to obtain a fire-resistant partition drywall with the window received in the housing formed by panels.

[0164] The major difference between the two methods is the step when the window 12 is inserted in the fire-partition drywall 10. Except for this difference, the steps of the two methods may be used depending on user’s preference.

[0165] In the method 200 for making a fire-resistant partition drywall 10 of Figure 3, the step of inserting the window 12 into the panelled window frame may comprise a step of attaching the fire-resistant gasket 32 on the periphery of both sides of the window 12, for example by gluing the fire-resistant gasket 32 on the window 12.

[0166] Although the present disclosure refers to specific exemplary embodiments, modifications may be provided to these examples without departing from the general scope of the invention as defined by the claims. In particular, individual characteristics of the different illustrated / mentioned embodiments may be combined in additional embodiments. Therefore, the description and the drawings should be considered in an illustrative rather than in a restrictive sense.

Claims

CLAIMS1. Fire-resistant partition drywall (10) comprising a sub-structure (16), panels (14) mounted on the sub-structure (16) and a window (12), the window (12) being received in a housing formed by panels (14), the sub-structure (16) comprising a window frame covered with panels (14), so as to obtain a panelled window frame.

2. Fire-resistant partition drywall (10) according to claim 1 , wherein the panels (14) are gypsum panels.

3. Fire-resistant partition drywall (10) according to claim 1 or 2, wherein the window (12) rests on support blocks (30).

4. Fire-resistant partition drywall (10) according to any one of claims 1 to 3, comprising two layers of panels, a first layer (14A) being mounted on the substructure (16) and a second layer (14B) being mounted on the first layer (14A).

5. Fire-resistant partition drywall (10) according to any one of claims 1 to 4, wherein a thickness of the fire-resistant partition drywall (10) is larger than a thickness of the window (12).

6. Fire-resistant partition drywall (10) according to any one of claims 1 to 5, wherein an intumescent layer (28) is attached to the panelled window frame.

7. Fire-resistant partition drywall (10) according to any one of claims 1 to 6, comprising a fire-resistant gasket (32) between the window and the housing.

8. Fire-resistant partition drywall (10) according to any one of claims 1 to 7, comprising corner beads (36) fixed on the panels.

9. Fire-resistant partition drywall (10) according to any one of claims 1 to 8, wherein the fire-resistant partition drywall (10) has at least 30 minutes thermal insulation measured according to EN 1364-1 :2015.

10. Fire-resistant partition drywall (10) according to any one of claims 1 to 9, wherein the fire-resistant partition drywall has an integrity of at least 120 minutes measured according to EN1364-1 :2015.11 . Fire-resistant partition drywall (30) according to any one of claims 1 to 10, wherein the fire-resistant partition drywall has a reduction of thermal radiation of at least 15 kW / m2at a distance of 1 meter for at least 30 minutes measured according to EN 1364-1 :2015.

12. Method (100) for making a fire-resistant partition drywall (10), the method comprising the following steps:- building (102) a sub-structure (16) with metallic studs, the sub-structure (16) comprising a window frame;- covering (104) the window frame with panels (14) so as to form a panelled window frame;- building (106) a first part of the housing for a window (12) on the panelled window frame with panels;- inserting (108) the window (12) into the first part of the housing;- building (110) a second part of the housing with panels, so as to obtain a fire- resistant partition drywall (10) with a window (12) received in the housing formed by panels (14).

13. Method (200) for making a fire-resistant partition drywall (10), the method comprising the following steps:- building (102) a sub-structure (16) with metallic studs, the sub-structure (16) comprising a window frame;- covering (104) the window frame with panels (14) so as to form a panelled window frame;- inserting (108) a window (12) into the panelled window frame;- building (106) a first part of the housing for the window on the panelled window frame with panels (14);- building (110) a second part of the housing with panels (14), so as to obtain a fire-resistant partition drywall (10) with the window (12) received in the housing formed by panels (14).

14. Method (100; 200) according to claim 12 or 13, comprising a step of placing a fire-resistant gasket (32) between the first part of the housing and the window (12) and between the second part of the housing and the window (12).

15. Method (100;200) according to any one of claims 12 to 14, wherein the housing comprises two layers of panels, a first layer (14A) being mounted on the sub-structure (16) and a second layer (14B) being mounted on the first layer (14A).

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