Building with fire-resistant thermal insulation

Abstract

To provide a roof structure capable of remarkably reducing the labor of construction while securing desired heat insulation and fire resistance.SOLUTION: A group of heat insulating panels 8 long in the direction crossing small beams 6 are arranged in a row on a roof backing composed of the group of the small beams 6. A group of auxiliary heat-insulating boards 9 as single-layer products of a foamed resin are arranged on the group of the heat-insulating panels 8, and a group of fire-resistant panels 11 long in the direction crossed with the heat-insulating panels 8 are arranged thereon. The group of auxiliary heat insulating plates 9 and the heat insulating panel 8 are fastened together to the group of beams 6 by a hat-shaped pressing member 30 and a stud 31. The fireproof panel 11 is fixed to a flange 30b of the pressing member 30 by a drill screw. Since the deck plate is not required, the structure can be simplified. Since the heat insulating panel 8 can be quickly laid, labor of construction (and demolition) can be remarkably reduced more than a conventional construction method of laminating a foaming resin plate.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a building with fire resistance and thermal insulation. The building with fire resistance and thermal insulation includes various types of buildings such as refrigerated and frozen warehouses, temperature-controlled buildings that house many servers and large computers, and warehouses installed in cold regions. [Background technology]

[0002] A typical example of a fire-resistant, insulated building is a refrigerated or frozen warehouse, the interior of which is maintained at, for example, -20 to -30°C when used for chilled storage. Therefore, the floor, walls, and roof are insulated. A refrigerated or frozen warehouse is constructed with structural materials such as pillars and beams to form a frame (skeleton), with a fire-resistant, insulated wall layer applied to the perimeter of the frame, and a fire-resistant, insulated roof with a fire-resistant, insulated layer applied to the top surface of the frame.

[0003] The framework may be a combination of prestressed concrete columns and beams with steel (shaped steel), or a structure made entirely of steel (steel).Fireproof and insulated structures vary, but when looking at the walls, many structures are seen in which a group of fireproof outer panels and a group of insulated inner panels are arranged with a space between them.In these cases, sandwich panels are often used for the inner panels, with a core made of foamed resin or inorganic porous material sandwiched between steel plates, and their thickness is often set at around several tens of millimeters to 100 mm.

[0004] On the other hand, when looking at the roof, a fire-resistant roof base is formed using a deck plate with a concave-convex structure, and multiple layers of rectangular foam resin insulation boards are laid on the top surface of the deck plate, and the insulation boards are fixed to the deck plate with metal pressure plates and stud bolts, and then a waterproof layer is applied on top of the insulation board layers. The thickness of the insulation boards varies, but the thickest is about 100 mm, so a laminated structure is used to meet the required insulation performance (for example, Patent Document 1).

[0005] The size of the insulation boards varies, but the largest standard size seems to be 910mm x 1820mm. Therefore, a huge amount of insulation boards are laid out in layers starting from the edge of the deck plate, and once laid, a pressure plate is used to secure the group of insulation boards to the deck plate. However, first of all, the large number of insulation boards and the need to lay them in multiple layers pose a problem: construction is extremely time-consuming.

[0006] In particular, the installation of the insulation panels is made even more difficult by the fact that the upper and lower insulation panels are positioned with their edges offset to prevent heat from escaping through the gaps (joints) between the edges. Furthermore, a wall-like parapet rises around the roof, and joint spaces are formed around the insulation panels, extending down to the bottom of the parapet. These joint spaces are filled with foamed resin by on-site foaming, but sometimes it is necessary to fill the foamed resin for each layer of insulation panel, which is a problem that requires a great deal of work.

[0007] Furthermore, when the foaming resin was being filled, the foam spread throughout the site, so the workers had to wear protective clothing, which placed a great burden on them. Also, since other workers had to leave the site while the foaming resin was being applied, it was not possible to carry out multiple tasks at the same time, which also reduced the efficiency of the roof construction.

[0008] On the other hand, it has also been proposed to construct the roof using panels, with Patent Document 2 disclosing the laying of insulating exterior panels on the top surface of a deck plate (tight frame), and Patent Document 3 disclosing the support of a group of insulating panels with a roof underlayment made of beams. When the roof is constructed using insulating panels as in Patent Documents 2 and 3, it can be said that the labor required can be significantly reduced compared to the construction method of stacking insulating boards as in Patent Document 1. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] CD-ROM of Utility Model Registration No. 3182576 [Patent Document 2] Microfilm of Utility Model Publication No. 63-058114 [Patent Document 3] Microfilm of Utility Model Publication No. 133007, Showa 56 Summary of the Invention [Problem to be solved by the invention]

[0010] The roof of a building is exposed to direct sunlight for longer periods of time than the walls, so high insulation is required, and the top surface must be flat to provide a waterproof layer. For this reason, it is understood that multiple layers of insulating boards are stacked on top of each other, as in Patent Document 1, but the structures in Patent Documents 2 and 3, which are merely repurposed conventional wall insulating panels, are thought to be unable to ensure the necessary insulation performance for a refrigerated or frozen warehouse.

[0011] Furthermore, since the insulating panels used in the wall sections have poor fire resistance, fire-resistant panels that meet fire resistance standards are used as outer panels in the wall sections to comply with legal regulations. However, the configuration of Patent Document 3 simply uses insulating panels with low fire resistance, so it can be said that the required fire resistance is often not ensured.

[0012] It is anticipated that one may ask whether it would be better to manufacture thicker insulating boards and arrange them in a single layer instead of stacking multiple insulating boards as in Patent Document 1. However, since insulating boards are manufactured by extrusion molding, it is difficult to manufacture boards with a thickness of, for example, 250 mm or 300 mm. Therefore, boards with a thickness of, for example, 50 mm or 75 mm are stacked.

[0013] Therefore, under the current circumstances, it is difficult to construct the roof of a refrigerated or frozen warehouse with a simple structure. The present invention was made in response to this situation, and aims to disclose a building that is easy to construct while ensuring the desired fire resistance and insulation properties. [Means for solving the problem]

[0014] The present invention includes various configurations for buildings with thermal insulation, typical examples of which are specified in each claim. The invention of claim 1 is a generic concept, "A building with a fire-resistant, insulated roof, The roof portion includes a roof foundation having a large number of horizontally arranged beams as main components, a heat insulating layer disposed on the roof foundation, and a fireproof layer covering the heat insulating layer from above, The heat insulating layer is made up of a number of heat insulating panels laid in an aligned fashion, and each heat insulating panel has a multi-layer structure in which metal plates are attached to one or both sides of an organic or inorganic heat insulating core material. The structure is as follows.

[0015] The fireproof layer may be a single layer of inorganic material, or a fireproof panel made of a fireproof material covered with a metal plate. In either case, from the viewpoint of workability, it is preferable that the fireproof layer be a long product having a considerable length, and that the longitudinal end faces of adjacent fireproof layers be interlocked with each other.

[0016] The invention of claim 2 is a development example of claim 1, "Each of the heat insulating panels has a sandwich structure in which the metal plates are attached to both the top and bottom of the heat insulating core material, and an exposed portion of the heat insulating core material exists on the periphery." The structure is as follows.

[0017] The invention of claim 3 is a development example of claim 1 or 2, "Each beam has a number of studs erected at predetermined intervals, while each insulation panel has through holes through which the studs pass, The heat insulating panel is held down against the beam by a metal plate retainer member fixed to the stud with a nut or bolt. The structure is as follows.

[0018] The invention of claim 4 is a development example of claim 3, The pressing member is formed long and hat-shaped in cross section with a trough-shaped portion and a pair of flanges, and a large number of pressing members are arranged in parallel, Between the insulation panel and the fireproof layer, a group of auxiliary insulation plates having an angular shape in a plan view and no metal plate is arranged in a row between adjacent pressing members, and flanges of the pressing members overlap the ends of the group of auxiliary insulation plates, The group of auxiliary insulation plates and the group of insulation panels are held down by the beam material via the holding member. The structure is as follows.

[0019] The invention of claim 5 is a development example of claim 4, "The fire-resistant layer is fixed to the pressing member with a screw via a washer." The washer may have various shapes, including a band plate that spans two adjacent fireproof plates.

[0020] The invention of claim 6 is a development example of claim 1 or 2, "Each of the heat insulating panels has a rectangular shape in plan view having a pair of short sides and a pair of long sides, and a large number of heat insulating panels are laid out in a line adjacent to each other in the short side direction and the long side direction, while Each beam is arranged in a long orientation in a direction perpendicular to the longitudinal direction of each insulation panel, Each of the insulation panels is supported by a plurality of beams, and the adjacent short sides of two insulation panels adjacent in the long side direction are supported by one of the beams, and each insulation panel is supported by at least one beam at the portion between the pair of short sides. The structure is as follows.

[0021] The invention of claim 7 is a generic concept, and a building having fire resistance and thermal insulation is "A building with a fire-resistant, insulated roof, The roof portion includes a roof underlayment having a deck plate of folded plate strips as a main component, and a heat insulating layer disposed on the deck plate, The heat insulating layer is made up of a number of heat insulating panels laid in an aligned fashion, and each heat insulating panel has a multi-layer structure in which a metal plate is attached to at least the top surface of an organic or inorganic heat insulating core material, and the heat insulating core material is exposed on the periphery. The structure is as follows.

[0022] The invention of claim 8 is a generic concept, and a building having fire resistance and thermal insulation is "A building with a fire-resistant, insulated roof, The roof portion includes a roof substrate arranged in a horizontal position and a heat insulating layer arranged on top of the roof substrate, The heat insulating layer is composed of a number of heat insulating panels laid in an aligned manner, and the heat insulating panels have a structure in which metal plates are attached to both the top and bottom surfaces or one surface of an organic or inorganic heat insulating core material, and the heat insulating layer is composed of one or two layers, in a refrigerated warehouse or a frozen warehouse, The overall thickness of the insulation layer is set to 200 mm or more, and the insulation core is exposed on the periphery of each insulation panel. The structure is as follows. [Effects of the Invention]

[0023] In the invention of claim 1, the heat insulating layer is composed of heat insulating panels, so the multi-layer process as in Patent Document 1 is unnecessary, and therefore the construction work (man-hours) can be significantly reduced and dimensional accuracy can be improved. The on-site foaming work to seal the periphery of the roof and block ventilation can also be eliminated or reduced in frequency, which significantly reduces the burden on workers and greatly improves the working environment. Dismantling work is also easy.

[0024] In claim 1, deck plates are not required, which significantly reduces the process and cost, and also contributes to reducing the weight of the building itself. Since it has a fire-resistant layer in addition to the heat-insulating panel, it can easily meet the standards for fire resistance required by law.

[0025] Since the insulation panel is constructed of a core material and metal plates, it is possible to manufacture thick insulation panels by using a method similar to insert molding, for example, by foaming resin in the space between the upper and lower surface panels to form the insulation core material. Alternatively, foamed resin made from polystyrene beads can be easily manufactured to a thickness of about 500 mm, and thick insulation panels with excellent insulation performance can also be easily manufactured by bonding metal plates to a core material made from flame-retardant beads. In other words, by using a laminated structure of a heat insulating core material and a metal plate, it is possible to manufacture a heat insulating panel that has the same heat insulating performance as a laminated product of resin plates and is also superior in strength. Therefore, the desired heat insulating performance can be secured by using the heat insulating panel while maintaining the fire resistance required for each individual building.

[0026] Although it is not impossible to construct an insulating panel with a metal plate attached to only one of the top and bottom surfaces of an insulating core material, adopting a sandwich structure with metal plates attached to the top and bottom as in claim 2 makes it easy to manufacture using a method such as foaming resin between the top and bottom metal plates to form the insulating core material, and also ensures high rigidity even when the insulating panel is long, making it strong and easy to handle, and also preventing damage to the core material.

[0027] Furthermore, because the core is exposed on the periphery of the insulation panel, heat transfer between the bottom and top panels is blocked, ensuring high insulation performance. Adjacent core materials can be easily attached to each other, preventing or significantly reducing problems such as gaps that can cause heat leakage.

[0028] The insulation panel needs to be fixed to the roof substrate such as beams. One possible fixing method is to drill tapped holes in the beams and thread bolts that pass through the insulation panel into the tapped holes in the beams, but if studs are used as in claim 3, the insulation panel is positioned and stably held by the studs, allowing the insulation panel to be positioned accurately and preventing workers from stepping through the panel when walking on it, allowing for safe work.

[0029] In other words, when placing a group of insulation panels in an aligned position on the beams, workers stand on the insulation panel that has been laid previously and begin laying the next insulation panel.Even if there is a large space between the beams, the insulation panels are held in a stable state by the studs and cannot shift sideways, so work can be done safely and the accuracy of laying the insulation panels can be improved.

[0030] Although it is theoretically possible to fix the insulation panel to the beam with drill screws, the beam has a considerable thickness due to its structural nature, so fixing it with drill screws is not practical.

[0031] It is possible to place the fire-resistant layer directly on the top surface of the insulation panel, but by placing an auxiliary insulation layer between the insulation panel and the fire-resistant layer as in claim 4, it is possible to prevent heat dissipation from the joints between adjacent insulation panels and from the metal plates that make up the insulation panel, thereby further improving the insulation and heat-blocking performance.

[0032] In claim 4, the group of auxiliary insulation plates and the group of insulation panels are fastened together to the beams using a hat-shaped cross-section holding member, which simplifies the structure. Also, since the auxiliary insulation plates are positioned by the holding member, there is the advantage that the installation precision of the auxiliary insulation plates can be improved.

[0033] By adopting a structure for fixing the fire-resistant layer to the holding member as in claim 5, the fire-resistant layer can be fixed with a short screw (preferably a self-drilling screw), making the work easier. Also, since the tip of the screw does not need to reach the insulation panel, a thermal bridge phenomenon does not occur between the fire-resistant layer and the insulation panel through the screw, thereby improving the insulation performance.

[0034] Forming the insulation panels into a long shape as in claim 6 allows the number of insulation panels to be minimized, which contributes to improving the efficiency of installation work and improving insulation performance by minimizing joints. Furthermore, each insulation panel is supported by beams at at least three points, at both ends and in the middle, so it is highly stable and does not warp even when a person works on it, and it is also free from problems such as warping caused by the updraft action (suction action) of strong winds.

[0035] In the invention of claim 7, a deck plate is installed as a base for the roof, and since the deck plate can be certified as a fire-resistant layer under the Fire Service Act, the deck plate and a group of insulating panels can form a fire-resistant and insulating layer.

[0036] Furthermore, because the heat insulating panel has a laminated structure of heat insulating core material and metal plates, the multi-layer stacking process as in Patent Document 1 is not required, as in claim 1, and therefore the construction work (man-hours) can be significantly reduced and dimensional accuracy can be improved. As in claim 1, the on-site foaming work around the roof can be eliminated or reduced in frequency, which significantly reduces the burden on workers and greatly improves the working environment. Dismantling work is also easy.

[0037] Furthermore, since the insulating panel is constructed of a core material and a metal plate, it is possible to make the insulating core material thick, as described as the effect of claim 1, and therefore the desired insulating performance can be ensured using the insulating panel.

[0038] Furthermore, because the insulation core is exposed on the periphery of the insulation panel, heat transfer between the top panel and deck plate is blocked, ensuring high insulation and heat-shielding performance. Adjacent cores can be easily attached to each other, preventing problems such as gaps forming in the joints between adjacent insulation panels and causing heat leakage.

[0039] Furthermore, because the deck plate method provides stable footing during work, it is easy to construct the insulation layer from a group of insulation panels stacked one on top of the other. The adoption of such a stacked structure of upper and lower insulation panels offers the advantage of preventing heat loss through the joints, for example, by arranging the upper and lower insulation panels offset horizontally. While long drill screws are custom-made and costly, fastening the lower insulation panel to the deck plate with screws and the upper insulation panel to the surface of the lower insulation panel with screws offers the advantage of allowing the insulation layer to be constructed with standard length screws, rather than custom-made ones.

[0040] The invention of claim 8 specifies the thickness of the insulation panel, but by setting the overall thickness of the insulation layer to 200 mm or more, it is possible to ensure insulation performance equal to or better than that of laminated foam resin boards, while also enjoying the benefits of reduced construction work, as with claims 1 and 7. Therefore, it is suitable for refrigerated and frozen warehouses, which require extremely high insulation and heat-shielding properties. Because the insulation core material is exposed on the periphery, adjacent insulation panels adhere well to each other, preventing heat leakage from the joints, which also contributes to improved insulation. [Brief explanation of the drawings]

[0041] [Figure 1] 5A and 5B are diagrams showing the first embodiment, in which (A) is a schematic view of a refrigerated / freezer warehouse, and (B) is a longitudinal side view of a main part (a cross-sectional view taken along line BB in FIG. 1A and a cross-sectional view taken along line IB-IB in FIG. 5A). [Figure 2] FIG. [Figure 3] FIG. 1 is a partial plan view mainly showing the framework. [Figure 4] 4A is a cross-sectional view taken along line IVA-IVA in FIG. 3, and FIG. 4B is a cross-sectional view taken along line IVB-IVB in FIG. [Figure 5] FIG. 2 is a partial plan view showing the positional relationship between beams (sub-beams) and heat-insulating panels. [Figure 6] FIG. 10 is a partial plan view showing the auxiliary heat insulating plate and the pressing member. [Figure 7] FIG. 2 is a partial plan view showing the fire-resistant layer. [Figure 8] FIG. [Figure 9] 9A is a cross-sectional view taken along line IXA-IXA in FIG. 8, and FIG. 9B is a cross-sectional view taken along line IXA-IXA in FIG. [Figure 10] 7A is a cross-sectional view taken along line XA-XA in FIG. 7, (B) is a cross-sectional view taken along line XB-XB in FIG. 7, and (C) is a cross-sectional view taken along line XC-XC in FIG. [Figure 11] Both (A) and (B) are diagrams showing other examples of the same location as FIG. 10(B). [Figure 12] FIG. 10 is a cross-sectional view of a main part of a second embodiment which is a specific example of claim 7. [Figure 13] Each sub-figure shows an example of the structure of a heat insulating panel in the second embodiment. [Figure 14] Each sub-figure is a plan view showing an example of the arrangement of upper and lower heat insulating panels in the second embodiment. [Figure 15] 10A is a cross-sectional view of a main part of a third embodiment, FIGS. 10B and 10C are cross-sectional views of the third embodiment, and FIG. 10D is a cross-sectional view of a main part of a fourth embodiment. [Figure 16] 10A is a cross-sectional view of a main part of a fifth embodiment, and FIG. 10B is a cross-sectional view of a main part of a sixth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0042] Next, embodiments of the present invention will be described with reference to the drawings. The following embodiments are applied to a refrigerated / freezer warehouse, and an example of the exterior is shown in Figure 1(A). The refrigerated / freezer warehouse of the embodiment has a rectangular shape in plan view. In the following, for convenience of explanation, the front-rear and left-right directions are specified, but as clearly shown in Figure 1(A), the longitudinal direction is defined as the left-right direction, and the short-side direction is defined as the front-rear direction. Each embodiment will be described in turn below.

[0043] (1) Basic structure of the first embodiment First, a first embodiment shown in Figures 1 to 11 will be described. This embodiment corresponds to claims 1 and 9. As shown in Figure 3, the refrigerated / freezer warehouse comprises, as a skeleton, a group of concrete main columns 1 and girders 2 (see also Figure 1(B)) arranged around the periphery, and a group of concrete interior columns 3 and horizontal structural beams 4 (see also Figure 4(A)) arranged along the longitudinal centerline of the refrigerated / freezer warehouse. The concrete that makes up the columns 1, 3, etc. can be cast in place, or PC concrete (precast / prestressed concrete) can also be used.

[0044] The main columns 1 aligned in the left-right direction and the interior columns 3 are arranged at the same left-right pitch, and a vertical structural beam 5 (see also Figure 4(B)) made of H-shaped steel is suspended between the upper ends of the main columns 1 and the interior columns 3 aligned in the left-right direction and fixed to the main columns 1 and the interior columns 3 via brackets (not shown). Therefore, the framework of a refrigerated / freezer warehouse is roughly composed of a group of columns 1 and 3, a group of horizontal structural beams 4, and a group of vertical structural beams 5.

[0045] As shown in Figures 1(B) and 4, the top surfaces of the structural beams 4 and 5 are lower by a certain amount than the top surfaces of the columns 1 and 3. A group of small beams 6 made of H-shaped steel and extending left and right spans between the vertically long girder 2 and the main columns 1 in the vertical row and the vertically long structural beams 5, and each small beam 6 is fixed to the girder 2, main columns 1, and vertically long structural beams 5 via brackets (not shown). The group of small beams 6 is a main component of the roof foundation that makes up the roof, and is an example of a steel beam material.

[0046] Adjacent small beams 6 can be connected by longitudinal stays arranged at appropriate intervals in the left-right direction. In this case, the spacing between the small beams 6 can be accurately maintained and the strength of the framework consisting of a group of small beams 6 can be improved. In this case, the stays can also be considered as beam materials.

[0047] As can be seen from Figures 1(B) and 4, the top surfaces of the joists 6 are at the same height as the top surfaces of the columns 1 and 3. Then, as shown in Figure 2 (see also Figure 8), for example, on top of a roof substrate constructed using a group of joists 6 as the main components, a group of front-to-back longitudinal insulation panels 8, a group of auxiliary insulation plates 9 made of foamed resin, a group of left-to-right longitudinal fire-resistant panels 11 as an example of a fire-resistant layer, and a waterproof sheet 12 are layered in that order from the bottom up, and the roof section is made up of these components.

[0048] As shown in Figure 1, the wall section comprises an inner wall base consisting of a vertical frame 13 and a horizontal frame 14 made of H-shaped steel, a number of wall insulation panels 15 arranged on the outside of the inner wall base, and a number of wall fire-resistant panels 16 arranged on the outside of the wall insulation panels 15 with a space between them, and the wall fire-resistant panels 16 are fixed to an outer wall base consisting of horizontal furring strips 17 and vertical furring strips 18.

[0049] Although not shown in the drawings, the wall insulation panel 15 also has a sandwich structure having an insulating core material and steel surface panels, and unlike the roof insulation panel 8, the insulating core material is covered all around with the surface panels. The wall fire-resistant panel 16 also has a sandwich structure in which an organic or inorganic fire-resistant insulating material is covered with a steel surface panel. The wall insulation panel 15 and the wall fire-resistant panel 16 are long in the horizontal or vertical direction, and the longitudinal end faces of adjacent wall fire-resistant panels 16 interlock with each other. The wall insulation panels 15 may simply be in close contact with each other's longitudinal end faces, or they may interlock with each other.

[0050] The wall fire-resistant panels 16 and vertical furring strips 18 extend above the roof, and the wall fire-resistant panels 16 are placed on the inner surface of the extensions to form a parapet 20. The area surrounded by the lower end of the parapet 20, the outer periphery of the roof, and the upper ends of the wall fire-resistant panels 16 forms a joint space, and this joint space is filled with an insulating resin layer 21 by foaming in place. The upper end surface of the topmost wall insulation panel 15 is at the same height as the top surface of the column 1, and the edges of the insulation panels 8 arranged on the periphery partially overlap the wall insulation panels 15 in a plan view.

[0051] (2) Details related to insulation panels Next, the details of the roof section will be explained. As shown in Figure 5, the insulation panels 8 are longitudinal in shape as described above, with a width W of approximately 1000 mm, a length L of approximately 10 to 11 m, and a thickness of approximately 250 mm, but the size and thickness can be set to any desired values ​​as needed. It is also possible to use insulation panels 8 of different sizes in combination. In Figures 3 and 5, some insulation panels 8 are marked with diagonal lines, but this is a convenient measure to make it easier to understand the shape and installation of the insulation panels 8, and the diagonal lines do not represent a cross section.

[0052] The arrangement pitch of the joists 6 can be set arbitrarily according to the specifications required for the building, but in this embodiment it is set to approximately 2500 to 2700 mm. Since the length L of the insulation panel 8 is approximately 10 m, as shown in Figure 3, each insulation panel 8 is supported at the midpoint between its longitudinal ends (front end and rear end) by four joists 6. H-shaped steel beams are used for the joists 6, but various steel materials such as square steel pipes and channel members can also be used. The size of the joists can also be set arbitrarily. By increasing the size and thickness, it is also possible to adopt a solution in which a group of insulation panels 8 is supported by three joists 6.

[0053] . 2, 8, and 9, the insulating panel 8 has a sandwich structure in which metal surface panels (steel plates) 25 are bonded to both the top and bottom of an insulating core 24 made of a foamed resin such as urethane, and the outer periphery of the surface panels 25 is formed with folded portions 25a that bite into the end faces of the insulating core 24. The rib effect of the folded portions 25a gives the insulating panel 8 high rigidity. Furthermore, the folded portions 25a do not cover the entire insulating core 24, and the outer periphery of the insulating core 24 has exposed portions 24a. It is also possible to adopt a structure in which the folded portion 25a is not formed on the surface plate 25. Furthermore, when the folded portion 25a is formed, it is possible to form it only on the long side portion or only on the short side portion, or it is also possible to form it only on one of the upper and lower surface plates 25.

[0054] Therefore, the exposed portions 24a of the insulating core material 24 of adjacent insulating panels 8 can be brought into close contact with each other, ensuring a high level of sealing. As shown in Figure 8, sealing the edges of adjacent insulating panels 8 with moisture-proof tape 26 is preferable for preventing condensation.

[0055] For example, as shown in Figure 3, the insulation panels 8 are laid in close contact with each other from front to back and left to right, but the butted longitudinal ends of adjacent insulation panels 8 rest on a common sub-beam 6 or horizontally long structural beam 4. For this reason, left and right longitudinal first spacers 27 (see also Figure 4(A)) on which the longitudinal ends of the insulation panels 8 rest are fixed to the upper surfaces of the horizontally long structural beam 4 and the horizontally long girder 2.

[0056] As shown in Figures 3 and 4(B), the longitudinal side edges of two adjacent insulation panels 8 on the left and right are located above the vertical structural beam 5. Therefore, second spacers 28, on which the longitudinal side edges of the two adjacent insulation panels 8 on the left and right are placed, are fixed to the upper surface of the vertical structural beam 5. Furthermore, as shown in Figures 1(B) and 3, left and right longitudinal third spacers 29, which are like extensions of the sub-beams 6 to the left and right outward, are fixed to the upper surface of the front and rear longitudinal girder 2, and the insulation panels 8 located at both left and right ends of the group are fixed to the third spacers 29. It is also possible to set the height of the sub-beams 6 etc. so that the spacers 27 to 29 are not necessary.

[0057] (3) Fixing structure between the heat insulating panel 8 and the auxiliary heat insulating plate 9 As can be easily seen from Figure 2, the auxiliary insulating plate 9 is thinner than the insulating panel 8 (for example, about 75 mm), and its left-to-right width is set to a dimension slightly smaller than the width W of the insulating panel 8, while its front-to-back width is set to a dimension slightly longer than the left-to-right width. Therefore, it is formed in a rectangular shape close to a square (the dimensions of the auxiliary insulating plate 9 can also be set arbitrarily).

[0058] The group of auxiliary insulating plates 9 has many rows lined up closely together in the front-to-rear direction, with a small joint spacing (for example, about 50 mm) between adjacent rows, and the joint spaces are set to be located above the left-to-right middle parts of the insulating panels 8. Therefore, as can be seen from Figure 6, the abutting parts (joint parts) of adjacent insulating panels 8 on the left and right are covered by the group of auxiliary insulating plates 9. In addition, the abutting parts of adjacent insulating panels 8 on the front and rear are also covered from above by the auxiliary insulating plates 9.

[0059] As shown in Figures 2 and 9, adjacent rows of auxiliary insulation plates 9 and rows of insulation panels 8 are fixed to the joists 6 or the like using steel plate retaining members 30 and studs 31. The retaining members 30 have gutter-shaped portions 30a that fit into the joint spaces between adjacent auxiliary insulation plates 9 on the left and right, and flanges 30b that overlap the edges of adjacent auxiliary insulation plates 9 on the left and right, forming a hat-shaped cross section.

[0060] On the other hand, the stud 31 has a first stud bolt 32 screwed and fixed into the sub-joist 6, and a second stud bolt 35 fixed to the first stud bolt 32 via a high nut 33 and a lock nut 34.The upper part of the second stud bolt 35 is passed through the gutter-shaped portion 30a of the holding member 30, and a nut 36 is screwed into the upward exposed portion of the second stud bolt 35, thereby fixing (co-fastening) the row of auxiliary insulation plates 9 and the row of insulation panels 8 to the sub-joist 6.

[0061] Therefore, the insulation panel 8 has mounting holes 37, through which the studs 31 pass, bored at appropriate intervals along the longitudinal centerline. During construction, an insulating sealant 38 is injected into the mounting holes 37 of the insulation panel 8 and the gutter-shaped portion 30a of the retaining member 30 by foaming in place. As shown in Figure 1(B), the auxiliary insulation plates 9 located at the left and right ends of the group of auxiliary insulation plates 9 have narrower widths to allow for dimensional adjustment.

[0062] 8, the studs 31 are attached to the flaps at positions offset from the longitudinal center line of the beam 6. The studs 31 may also be provided on the spacers 27-29.

[0063] As shown in Figure 8, when the ends of adjacent insulation panels 8 rest on a common joist 6, it is preferable to provide a pair of studs 31 on the joist 6, one at the front and one at the back, and secure the longitudinal ends of the insulation panels 8 together with the auxiliary insulation plate 9. This allows the insulation panels 8 to be securely fixed. In the example shown, one insulation panel 8 is secured by one pressing member 30, but it is also possible to secure the panels with two pressing members 30 on each side, taking into account factors such as the left-right width. In this case, the size of the auxiliary insulation plate 9 will also need to be changed.

[0064] (4) Fireproof panels and waterproof structures For example, as shown in Fig. 9, the fire-resistant panel 11 has a structure in which a fire-resistant insulating material 42 is completely covered with a steel surface panel 43, and as shown roughly in Fig. 8, the long end faces are configured with an uneven structure, while the short end faces are formed flat as shown in Fig. 9. Since the fire-resistant panel 11 is long from side to side, the short-side joints extend in the front-to-rear direction, but as shown in Figs. 9 and 10(B), the short-side joints are set to be positioned above the pressing members 30, and a silicone-based sealant 44 or other such sealant is fitted into the joints. As shown in Fig. 9(A), the sealant 44 is preferably covered with waterproof (moisture-proof) tape 45.

[0065] The fire-resistant panel 11 is fixed to the holding member 30 by a drill screw 47 via a rectangular washer 46. In Fig. 9, the drill screw 47 is shown at the location of the stud 31, but it is not necessary to fix it at the location of the stud 31. Since the fire-resistant panel 11 is arranged across multiple holding members 30 in its left and right long sides, the fire-resistant panel 11 is also fixed to multiple holding members 30 as shown in Figs. 10(A) and (C).

[0066] The washer 46 is formed in a rectangular shape with its left and right sides longer than the other so as to cross the holding member 30, and has an annular boss portion projecting upward into which the head of the drill screw 47 fits. The waterproof sheet 12 can also be welded to the washer 46. Asphalt waterproofing can also be used instead of sheet waterproofing using the waterproof sheet 12.

[0067] 11 shows modified methods of fixing the fire-resistant panel 11. In the modified example shown in (A), a recess 48 is formed in the top surface of the fire-resistant panel 11, in which the head of the drill screw 47 is hidden, and the fire-resistant panel 11 is fixed to the holding member 30 at the recess 48. Therefore, in this embodiment, a washer 46 is not used, and the top surface of the fire-resistant panel 11 is flat with no protrusions. This has the advantages of making it easier to install the waterproof sheet 12 and preventing damage to the waterproof sheet 12.

[0068] In this example, the washers 46 are not used, so the joint spaces are covered with waterproof tape 44a. It is not necessary to form joint spaces when laying the auxiliary insulation plates 9. It is also possible to lay the auxiliary insulation plates 9 vertically and horizontally without any gaps.

[0069] In the modification shown in (B), a through hole 49 is drilled in the face plate 43 that forms the upper surface of the fire-resistant panel 11, a cup-shaped protrusion 46a protruding downward from a washer 46 is fitted into the through hole 49, and a drill screw 47 is inserted into the cup-shaped protrusion 46a. The washer 46 can be either independent for each through hole 49 or a continuous extension spanning the retaining member 30. In this configuration, the washer 46 protrudes above the fire-resistant panel 11 by its plate thickness, but the protrusion is smaller than in the embodiment shown in Figure 10. Furthermore, processing of the fire-resistant panel 11 is simple.

[0070] (5) Summary of the first embodiment The first embodiment has the above structure, and the roof can be constructed by first laying the insulating panels 8 and then laying the auxiliary insulating plates 9 and the like on top of each other. This significantly reduces the amount of work required for construction compared to the method of laying multiple insulating plates in multiple layers, as in Patent Document 1. In addition, because the fire-resistant panels 11 are provided, the insulating panels 8 are attached directly to the joists 6 and the like, yet have high fire resistance and can meet the standards required for refrigerated and frozen warehouses.

[0071] In particular, if studs 31 are provided in advance on the joists 6, etc., the insulation panel 8 is held in place so that it cannot come off, making work safer and more efficient and improving construction accuracy. The stud 31 can be a simple one-piece stud bolt, but if it is formed into a double structure with first and second stud bolts 32, 35 as in the embodiment, the height can be changed as desired by replacing the second stud bolt 35, which has a different length, which has the advantage of being able to easily accommodate insulation panels 8 of different thicknesses.

[0072] The insulating panel 8 has a thick insulating core 24, which provides high insulating performance similar to that of the laminated type. However, because the insulating core 24 has an exposed portion 24a, the surface panel 25 can be easily processed, and the elasticity of the exposed portion 24a can be utilized to maintain high adhesion. This results in excellent heat-blocking properties and high insulating performance. It is also effective in preventing condensation because it can block the penetration of cold air. Dimensional errors can also be accommodated.

[0073] Furthermore, the provision of a group of auxiliary insulating plates 9 further improves the insulating performance, and the group of auxiliary insulating plates 9 is fastened together with the insulating panel 8 by the pressing member 30, thereby reducing the number of parts and labor required and reducing costs. In addition, the joints of the insulating panel 8 are covered by the auxiliary insulating plates 9, further improving the insulating performance.

[0074] In addition, because the fire-resistant panel 11 is fixed to the holding member 30, installation can be carried out quickly using short drill screws 47. Furthermore, because the lower ends of the drill screws 47 are secured to the auxiliary insulation plate 9, thermal bridging through the drill screws 47 can be prevented, and insulation performance can be further improved compared to when the fire-resistant panel 11 is fixed to the deck plate.

[0075] (6) Second embodiment Next, a second embodiment shown in Figures 12 to 14 will be described. This second embodiment is a specific example of claim 7, and includes a deck plate 51 with an uneven cross section as a roof substrate that constitutes the roof portion (preferably one that has been certified as having a predetermined fire resistance performance, as necessary). The basic structure of the building is the same as that of the first embodiment, and includes a group of joists 6 as structural materials that support the deck plate 51, and the deck plate 51 is supported by the group of joists 6 and spacers 27 to 29. The deck plate 51 is welded or bolted to structural materials such as the joists 6.

[0076] The insulating layer has a two-layer structure consisting of a group of upper insulating panels 52 and a group of lower insulating panels 53. The width and length of each insulating panel 52, 53 are the same as in the first embodiment, and the thickness is set to about 150 mm. Of course, the size and thickness can be set arbitrarily depending on the required insulating performance, etc.

[0077] The upper and lower insulation panels 52, 53 can be constructed in a variety of ways. Examples are shown in Figure 13. In the example shown in Figure 13 (A), metal surface panels 55 are attached to both the top and bottom of the insulation core 54, while in the example shown in Figure 13 (B), the surface panels 55 are attached only to the top surfaces of both the upper and lower insulation panels 52, 53. In the example shown in Figure 13 (C), the surface panels 55 are attached to the top surface of the upper insulation panel 52 and the bottom surface of the lower insulation panel 53, so that the insulation core 54 of the upper insulation panel 52 and the insulation core 54 of the lower insulation panel 53 are tightly attached to each other.

[0078] In the example shown in (D), the upper insulation panel 52 has a structure in which the surface plate 55 is attached only to the upper surface, and the lower insulation panel 53 has a structure in which the surface plates 55 are attached to the top and bottom. Conversely, it is also possible to have the upper insulation panel 52 have a structure in which the surface plates 55 are attached to the top and bottom, and the lower insulation panel 53 have a structure in which the surface plates 55 are attached only to the top or bottom. In either case, the folded portion 55a of the surface plate 55 only covers a portion of the insulation core 54, and an exposed portion 54a is formed on the outer periphery of the insulation core 54.

[0079] The upper and lower insulation panels 52, 53 can be fixed (fastened together) to the deck plate 51 with drill screws that pass through the upper and lower insulation panels 52, 53, but in the example shown in Figure 13(E), the lower insulation panel 53 is fixed to the deck plate 51 with drill screws 47, and the upper insulation panel 52 is fixed to the upper surface plate 55 of the lower insulation panel 53 with drill screws 47. As a result, no thermal bridge phenomenon caused by the drill screws 47 occurs between the upper surface plate 55 of the lower insulation panel 53 and the deck plate 51, resulting in excellent insulation performance.

[0080] The upper insulation panel 52 and the insulation core material 24 are preferably arranged in a staggered state in plan view to prevent heat from escaping through the joints. Figure 14 shows various staggered configurations. In the example shown in (A), the upper and lower insulation panels 52, 53 are staggered only to the right in the longitudinal direction (front-to-back direction), in the example shown in (B), the upper and lower insulation panels 52, 53 are staggered only in the width direction (left-to-right direction), and in the example shown in (C), the upper and lower insulation panels 52, 53 are staggered in both the longitudinal direction (front-to-back direction) and the width direction (left-to-right direction).

[0081] From the viewpoint of preventing heat loss, it is preferable to offset the upper and lower insulation panels 52, 53 in the longitudinal and width directions as shown in (C). When the upper and lower insulation panels 52, 53 are offset, it is necessary to adjust the size of the insulation panels located at the ends of the group, so method (C) requires more effort to process the ends than method (A). Therefore, one of the methods should be selected by balancing the effort required to process the ends with the required insulation specifications.

[0082] 12(A), the upper insulation panel 52 is shifted slightly inward to form a step between the upper and lower insulation panels 52, 53 at the outer periphery of the roof. Therefore, the space between the roof and wall is expanded upward. This allows the insulation resin layer 21 to be installed without any gaps when it is installed by foaming in place.

[0083] In this embodiment, a waterproof sheet 56 is placed on the top surface of the upper insulation panel 52, but because the deck plate 51 can be certified as a fire-resistant structure under the Building Standards Act, the fire-resistant panel 11 used in the first embodiment is not necessary. Furthermore, because the insulation panels 52, 53 are long and can be laid efficiently, construction work can be significantly reduced compared to the structure in which nearly square foam resin plates are arranged in multiple layers, as in Patent Document 1. It can be said that most existing refrigerated and frozen warehouses are equipped with deck plates 51, and the present invention can also be applied to the retrofitting of existing buildings equipped with deck plates 51.

[0084] In the illustrated embodiment, the insulation layer is composed of two layers of insulation panels 52, 53, but it can also be composed of a single layer of insulation panels 8 as shown in the first embodiment, or a single layer of insulation panels 8 and a single layer of auxiliary insulation plates 9. When auxiliary insulation plates 9 are used in combination, they can be fixed using the same pressing members 30 as in the first embodiment, or the auxiliary insulation plates 9 can be laid out tightly and fixed with drill screws via flat pressing members or washers. The drill screws can be screwed into the deck plate 51, but it is preferable to screw them into the top plates of the insulation panels.

[0085] As shown in Figure 13(E), it is also possible to adhere the lower insulation panel 53 to the deck plate 51 with adhesive 57. In this case, the number of fixing points using drill screws 47 can be significantly reduced. The adhesive 57 may be applied to the ridges of the deck plate 51 by spraying or brushing, or it is also possible to apply a tape with release paper.

[0086] Alternatively, a tape-like hot melt adhesive mixed with heat-generating particles that generate heat through dielectric heating can be used, and the hot melt adhesive can be temporarily adhered to the peaks of the deck plate 51 before the lower insulation panel 53 is laid down. Next, an iron-like or other portable induction heating device can be used to generate eddy currents, causing the heat-generating particles to heat up, thereby melting the hot melt adhesive and bonding the panels together. In this case, the lower insulation panel 53 can be moved while still resting on the hot melt adhesive, making the process easier and improving dimensional accuracy.

[0087] Adhering the insulation panels to the deck plate 51 with an adhesive can be applied regardless of the structure or number of layers of the insulation panels. When adhering the insulation panels to the deck plate 51 with an adhesive, the panels can be adhered over the entire surface of the ridges of the deck plate 51, or partial adhesion is also possible, such as adhering the panels in a scattered manner along the length of the ridges.

[0088] (7) Third and Fourth Embodiments Figure 15 shows another example in which a deck plate 51 is used for the roof. In the third embodiment shown in Figure 15(A), one layer of insulation panel 8 is used as the insulation layer, and studs 31 are provided protruding from the joists 6, so that the insulation panel 8 is pressed and held to the deck plate 51 by the studs 31. Therefore, the deck plate 51 has holes through which the studs 31 pass.

[0089] The stud 31 has a first stud bolt 32 fixed to the sub-joist 6, a high nut 33 fixed to the first stud bolt 32 via a lock nut 34, and a headed bolt 58 screwed into the high nut 33 from above, and the insulation panel 8 is pressed and fixed to the deck plate 51 by the bolt 58 via a washer 46. Although not shown in the figure, the mounting holes 37 of the insulation panel 8 are filled with an insulation sealant by foaming in place.

[0090] In this embodiment, the insulation panel 8 and the deck plate 51 are fastened together to the joists 6 by the studs 31, which eliminates the process of welding or screwing the deck plate 51 to the joists 6. It is also possible to have the studs 31 protrude from the deck plate 51. It is also possible to fix a high nut to the crest of the deck plate 51 with an upward bolt, and then screw the bolt 58 into the high nut (it is preferable to fix the high nut to the deck plate 51 by electric welding or the like).

[0091] Figure 15(B) shows a modified example of the third embodiment. In this modified example, the washer 46 is formed into a flanged, bowl-shaped portion that fits into the mounting hole 37 of the insulation panel 8. Figure 15(C) also shows a modified example of the third embodiment. In this modified example, a washer 46 of the same shape as in (B) is used, and a nut 36 is screwed onto a second stud bolt 35 that passes through the washer 46. Therefore, the stud 31 has the same structure as that used in the first embodiment.

[0092] In these modified examples (B) and (C), the heads of the bolts 58 and the nuts 36 do not protrude above the heat insulating panel 8, thereby preventing damage to the waterproof sheet 56. It is also easy to weld the waterproof sheet 56 to the washer 46.

[0093] In the first embodiment, it is also possible to place the fire-resistant panel 11 on the top surface of the insulation panel 8 without using the auxiliary insulation plate 9. In this case, the hat-shaped retaining member 30 cannot be used, and the insulation panel 8 must be fixed to the joist 6 by some other means. In this regard, the insulation panel 8 can be fixed to the joist 6 by using the washer 46 shown in Figures 15(B) and (C). In this case, if the area around the mounting hole 37 of the upper surface plate 25 of the insulation panel 8 is recessed downward, the flange of the washer 46 can be prevented from being exposed on the top surface of the insulation panel 8.

[0094] If the flange of the washer 46 is exposed on the top surface of the insulating panel 8, a waterproof sheet that is slightly thicker than the plate thickness of the washer 46 and that is subject to compressive deformation can be interposed between the insulating panel 8 and the fire-resistant panel 11, and the portion of the waterproof sheet that overlaps the washer 46 can be cut off with a grinder or melted with a hot plate.

[0095] 15(D), similar to the third embodiment, the insulation layer is formed of a single layer of insulation panel 8, and a drill screw 47 is used as a means for fixing the insulation panel 8. The head of the drill screw 47 is a recessed flat head or a thin hexagonal head, and passes through the insulation panel 8 via a washer 46. In this embodiment, the drill screw 47 passes directly through the insulation panel 8, so it can be driven into any desired location while observing the situation on site.

[0096] If the position where the drill screw 47 is to be driven is predetermined, it is also possible to employ the same structure as that disclosed in FIG. 11 as a method for fixing the fire-resistant panel 11, thereby preventing the head of the drill screw 47 from protruding.

[0097] Figure 16 shows an embodiment in which a deck plate 51 is used for the roof, and the insulating layer is composed of an insulating panel 8 and an auxiliary insulating plate 9. Of these, the fifth embodiment shown in Figure 16(A) uses studs 31 of the same structure as in the third embodiment, and fastens the auxiliary insulating plate 9 and the insulating panel 8 together with bolts 58 via washers 46. The bolt insertion holes in the auxiliary insulating plate 9 may be drilled in advance or may be drilled on site.

[0098] Similar to the first embodiment, a silicone-based sealant 44 or the like is fitted into the joint spaces between the rows of auxiliary insulating plates 9, and the sealant 44 and the pair of auxiliary insulating plates 9 are fixed to the insulating panel 8 with drill screws 47 via long pressing plates 59. It is also possible to use the same hat-shaped pressing member 30 as in the first embodiment.

[0099] In the sixth embodiment shown in Figure 16(B), the auxiliary insulation plate 9 and the insulation panel 8 are fastened together to the deck plate 51 with drill screws 47. A flat strip is used as the retaining plate 59, but a channel-shaped plate with sawtooth side plates that bite into the auxiliary insulation plate 9 can also be used. It is also possible to glue the auxiliary insulation plate 9 to the insulation panel 8 (this also applies to the other embodiments).

[0100] Although the embodiments of the present invention have been described above, the present invention can be embodied in various other structures. For example, the buildings to which the present invention is applied are not limited to refrigerated and frozen warehouses, but can also be applied to various buildings such as stores, factories, and general warehouses. It can also be applied to prefabricated warehouses. The insulation panel can also have a structure in which the entire outer periphery of the insulation core material is covered with metal plates.

[0101] If a deck plate is used as the roof underlayment, blind nuts can be fixed to the deck plate, and then the insulation panels can be secured with bolts threaded into the blind nuts (in this case, it is preferable to pre-drill holes in the insulation panels for the bolts). The fire-resistant layer can also be a single-layer ceramic or cement-based board. The basic structure of the building can also be constructed entirely of steel, including the columns and girders. [Industrial Applicability]

[0102] The present invention can be embodied in buildings with thermal insulation properties, and therefore has industrial applicability. [Explanation of symbols]

[0103] 1. Concrete main pillar 2 Concrete girders 3 Concrete interior columns 4 Concrete horizontal structural beams 5 Steel vertical structural beams 6 Steel beams that make up the roof base (beam material described in the claim) 8. Sandwich-structured insulation panels that form the insulation layer 9 Auxiliary insulation board (expanded resin foam) that forms the insulation layer 12. Tarpaulin 11 Fireproof panel as an example of a fireproof layer 15 Wall insulation panels 16. Fireproof wall panels 20 Parapet 21 Foamed-in-place insulation resin layer 24 Insulating core material 24a Exposed part 25 Surface plate 25a Folded part 26 Moisture-proof tape 27, 28, 29 Spacers 30 Retaining member 30a Gutter-shaped part 30b flange 31 studs 32 First stud bolt 33 High Nut 34 Lock nut 35 Second stud bolt 36 Nut 37 mounting holes 38 Heat insulating sealant 42 Fireproof insulation material that makes up the fireproof panel 43 Metal surface sheet that constitutes the fireproof panel 44 Joint sealant 46 Washer 47 Drill screws as an example of fasteners 51 Deck plate that forms the roof base 52,53 Insulation panels 54 Insulating core material 55 Surface plate 56 Tarpaulin 58 volts

Claims

1. A building with a fire-resistant, insulated roof, The roof portion includes a roof foundation having a large number of horizontally arranged beams as main components, a heat insulating layer disposed on the roof foundation, and a fireproof layer covering the heat insulating layer from above, The heat insulating layer is composed of a number of heat insulating panels laid in an aligned manner, and each heat insulating panel has a multi-layer structure in which metal plates are attached to both the top and bottom surfaces or one surface of an organic or inorganic heat insulating core material. Fire-resistant and insulated buildings.

2. Each of the heat insulating panels has a sandwich structure in which the metal plates are attached to both the upper and lower surfaces of the heat insulating core material, and an exposed portion of the heat insulating core material is present on the outer periphery. A building having the fire-resistant and heat-insulating properties of claim 1.

3. Each beam has a number of studs erected at predetermined intervals, while each insulation panel has through holes through which the studs pass, The heat insulating panel is held down by a metal plate pressing member fixed to the stud with a nut or bolt, A building having fireproof and heat-insulating properties according to claim 1 or 2.

4. The pressing member is formed long and hat-shaped in cross section, having a trough-shaped portion and a pair of flanges, and a large number of pressing members are arranged in parallel, Between the insulation panel and the fireproof layer, a group of auxiliary insulation plates having an angular shape in a plan view and no metal plate is arranged in a row between adjacent pressing members, and flanges of the pressing members overlap the ends of the group of auxiliary insulation plates, The group of auxiliary insulation plates and the group of insulation panels are pressed and held to the beam material via the pressing member. A building having fire-resistant and heat-insulating properties according to claim 3.

5. The fire-resistant layer is fixed to the pressing member with a screw via a washer. A building having fire-resistant and heat-insulating properties according to claim 4.

6. Each of the heat insulating panels has a rectangular shape in plan view having a pair of short side portions and a pair of long side portions, and a large number of heat insulating panels are laid out in a line adjacent to each other in the short side direction and the long side direction, Each beam is arranged in a long orientation in a direction perpendicular to the longitudinal direction of each insulation panel, Each of the insulation panels is supported by a plurality of beams, and adjacent short side portions of two insulation panels adjacent in the long side direction are supported by one of the beams, and each of the insulation panels is supported by at least one beam at a portion between the pair of short side portions. A building having fireproof and heat-insulating properties according to claim 1 or 2.

7. A building with a fire-resistant, insulated roof, The roof portion includes a roof underlayment having a deck plate of folded plate strips as a main component, and a heat insulating layer disposed on the deck plate, The heat insulating layer is made up of a number of heat insulating panels laid in an aligned manner, and each heat insulating panel has a multi-layer structure in which a metal plate is attached to at least the upper surface of an organic or inorganic heat insulating core material, and the heat insulating core material is exposed on the periphery. Fire-resistant and insulated buildings.

8. A building with a fire-resistant, insulated roof, The roof portion includes a roof substrate arranged in a horizontal position and a heat insulating layer arranged on top of the roof substrate, The heat insulating layer is composed of a number of heat insulating panels laid in an aligned manner, and the heat insulating panels have a structure in which metal plates are attached to both the top and bottom surfaces or one surface of an organic or inorganic heat insulating core material, and the heat insulating layer is composed of one or two layers, in a refrigerated warehouse or a frozen warehouse, The thickness of the heat insulating layer as a whole is set to 200 mm or more, and the heat insulating core material is exposed on the outer periphery of each heat insulating panel. Fire-resistant and insulated buildings.

Images