Thermal insulation and heat shielding structure for buildings and its construction method

Abstract

This prevents damage to the fastening points of the heat-shielding sheet. [Solution] In a building insulation and heat shielding structure in which an insulation layer and a heat shielding layer are configured in a multi-layered manner on the indoor side of the building, the structure comprises a heat shielding sheet 20 having a heat shielding layer 22 and a long pressing bar 56. The heat shielding sheet 20 is superimposed on a fixed part on the building side, and the pressing bar 56 presses the heat shielding sheet 20 across the width direction and is fixed to the fixed part.

Description

Technical Field

[0001] The present invention relates to a building heat insulation and heat shielding structure in which a building is covered with a heat shielding sheet from the indoor side, and a construction method thereof.

Background Art

[0002] In recent years, buildings are required to improve their heat insulation and heat shielding performance for the purposes of reducing fuel costs and ensuring a comfortable space with a stable room temperature. In the case of existing buildings, in order to improve the heat insulation property, heat insulating materials and heat shielding materials may be retrofitted. In particular, in buildings such as warehouses and factories, there are many such demands because of a large difference in temperature between cold and warm seasons.

[0003] Hitherto, as a simple construction method as in Patent Document 1, attaching a heat shielding sheet to a wall or a ceiling has been carried out. In this conventional technique, a grommet is provided on the peripheral side of the heat shielding sheet, and a hook with a tip portion facing upward is provided on the building side. The operation of installing this heat shielding sheet on the ceiling or the like of a building is completed by hooking the grommet on the hook from the upper side.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, according to the above conventional technique, the operation of forming grommets on the peripheral side of the heat shielding sheet is laborious, and there is a risk that the heat shielding sheet may be damaged in the vicinity of the grommets due to partial tensile forces applied to the grommets.

Means for Solving the Problems

[0006] In view of these challenges, one aspect of the present invention comprises the following configuration. A building insulation and heat shielding structure comprising a multi-layered structure of an insulation layer and a heat shielding layer on the indoor side of a building, wherein the structure comprises a heat shielding sheet having the heat shielding layer and a long pressing bar, the heat shielding sheet being superimposed on a fixed part on the building side, and the pressing bar pressing the heat shielding sheet across its width and being fixed to the fixed part. [Effects of the Invention]

[0007] As described above, the present invention is configured to securely fasten the heat-shielding sheet to the building and prevent damage to the fastening portion of the heat-shielding sheet. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view showing an example of a building heat insulation and heat shielding structure according to the present invention, with a portion of the roofing material (corrugated sheet) cut out. [Figure 2] Figure 1 shows a longitudinal cross-sectional view of the main part of the building's thermal insulation and heat shielding structure, along the X direction as shown in the figure. [Figure 3] This is a longitudinal cross-sectional view of the main part of the thermal insulation and heat shielding structure of building 1, along the Y direction as shown in the figure. [Figure 4] This is a perspective view showing how the heat-shielding sheet is attached, with the roofing material (corrugated metal) omitted. [Figure 5] Figure 4 shows a vertical cross-sectional view of the building's thermal insulation and heat shielding structure, with a magnified view of the fastening portion of the heat shielding sheet. [Figure 6] This is a perspective view showing another example of the building heat insulation and heat shielding structure according to the present invention, with the roofing material (corrugated sheet metal) omitted. [Figure 7] Figure 6 shows a magnified longitudinal cross-sectional view of the building's thermal insulation and heat shielding structure, specifically the fastening portions of the fastening bars and the heat shielding sheet. [Figure 8] This is a perspective view showing another example of the building heat insulation and heat shielding structure according to the present invention, with the roofing material (corrugated sheet metal) omitted. [Figure 9]Figure 8 shows a magnified longitudinal cross-sectional view of the building's thermal insulation and heat shielding structure, specifically the fastening portions of the fastening bars and the heat shielding sheet. [Figure 10] This is a perspective view showing another example of the building heat insulation and heat shielding structure according to the present invention, with the roofing material (corrugated sheet metal) omitted. [Figure 11] Figure 10 shows a magnified vertical cross-sectional view of the heat-insulating and heat-shielding structure of the building, specifically the fastening portion of the heat-shielding sheet. [Figure 12] Figure 10 shows a vertical cross-sectional view of the building's thermal insulation and heat shielding structure, with an enlarged view of the fastening portion of the heat shielding sheet, illustrating the configuration in which the end of the heat shielding sheet is hanging down. [Figure 13] This is a perspective view showing another example of the building heat insulation and heat shielding structure according to the present invention, with the roofing material (corrugated sheet metal) omitted. [Figure 14] Figure 13 is a vertical cross-sectional view showing an enlarged view of the fastening portion of the heat-shielding sheet in the building's heat-insulating and heat-shielding structure. [Figure 15] This is a perspective view from the indoor side of another example of the building thermal insulation and heat shielding structure according to the present invention. [Modes for carrying out the invention]

[0009] Next, embodiments of the present invention will be described in detail with reference to the drawings.

[0010] <First Embodiment> Figure 1 shows an example of a building equipped with an example of a building thermal insulation and heat shielding structure according to the present invention. This structure 10 comprises a plurality of support columns 11 extending upward from the floor surface, etc., an X-shaped elongated member 12 supported on the upper end side of these support columns 11 and extending substantially horizontally, a Y-shaped elongated member 13 intersecting the X-shaped elongated member 12 and extending substantially horizontally, a tight frame 14 fixed on the X-shaped elongated member 12, and a substantially corrugated roofing material 15 supported by the tight frame 14, and constitutes a building such as a warehouse or factory.

[0011] The X-direction elongated member 12 and the Y-direction elongated member 13 are elongated steel materials, and in the illustrated example, they are H-shaped steel beams having a web and upper and lower flanges.

[0012] A plurality of elongate members 12 in the X direction are arranged in parallel at intervals in a substantially horizontal direction.

[0013] A plurality of elongate members 13 in the Y direction are arranged in parallel at intervals so as to be substantially orthogonal to the plurality of elongate members 12 in the X direction. The upper flange 13a of each elongate member 13 in the Y direction functions as a projecting piece that projects horizontally and fits into the support 51 (see FIG. 5). The plurality of elongate members 13 in the Y direction are each connected by welding or the like between adjacent elongate members 12 in the X direction.

[0014] The building heat insulation and heat shielding structure A has a heat insulation layer and a heat shielding layer formed in a multi-layered structure on the indoor side of the building 10. This building heat insulation and heat shielding structure A includes a support 51 that is fixed to the immovable part on the building side (according to FIG. 4, the flange 13a of the elongate member 13 in the Y direction) so as to sandwich the immovable part, a fixed bar 52 that is connected to the immovable part via this support 51, a heat shielding sheet 20 that has a heat insulation layer and a heat shielding layer and covers the building 10 from the indoor side, and a fixing member 54 that fixes the end side in the extending direction of this heat shielding sheet 20 to the fixed bar 52 over the width direction (see FIGS. 4 and 5).

[0015] The heat shielding sheet 20 has a laminated structure in which a heat insulation layer 21 and a heat shielding layer 22 are overlapped (see FIG. 5).

[0016] The heat insulation layer 21 is a multi-layered flexible synthetic resin sheet (for example, a polyethylene sheet) with a large number of air bubbles inside, and may be referred to as an air bubble cushioning material or the like, and has high heat insulation properties.

[0017] The heat shielding layer 22 is a flexible sheet adhered to both the front and back surfaces of the heat insulation layer 21. Each heat shielding layer 22 is a sheet (for example, an aluminum foil or an aluminum vapor deposition sheet) coated with a thin film of aluminum, and has high heat shielding properties.

[0018] The heat-shielding sheet 20, configured as described above, is unwound from a roll into a long strip and arranged in multiple rows with an air layer in between it and the roofing material 15. It is then held in place by support members 51, fastening bars 52 and fastening members 54, etc., covering the building 10 from the inside.

[0019] Adjacent heat-shielding sheets 20, 20 are arranged so that their opposing ends in the width direction overlap to form an overlapping portion 20x. The overlapping portion 20x is formed by overlapping the heat-shielding sheet 20 that was unwound earlier with the heat-shielding sheet 20 that was unwound later. The overlapping portion 20x is bonded together by a two-sided adhesive member 40 as needed. Furthermore, the gap formed in the overlapping portion 20x may be covered with a heat-shielding adhesive sheet or the like (not shown).

[0020] Multiple support members 51 (two in the example shown in Figure 4) are attached to the Y-shaped elongated members 13 facing the leading edges of the multiple heat-shielding sheets 20, spaced apart in the width direction. Each support member 51 comprises a roughly horizontally oriented U-shaped main body 51a that fits onto the flange 13a (protruding portion) of the Y-length member 13, and a screw-in member 51b (a bolt or screw in the illustrated example) that is screwed onto the lower side of the main body 51a.

[0021] A long, rectangular fastening bar 52 is integrally fixed to multiple (two in the illustrated example) support members 51 that are spaced apart in the Y direction shown in the figure.

[0022] The fastening bar 52 is connected to a fixed portion on the building side (in the illustrated example, a long member 13 in the Y direction) facing the end of the heat shield sheet 20 in the extending direction, via a plurality of support members 51.

[0023] The fastening bar 52 is a long steel material that runs along the long member 13 in the Y direction, and supports 51 are provided at one end and the other end in the longitudinal direction of the bar. The fastening bar 52 has a length that extends approximately the entire width of the heat shield sheet 20, which consists of multiple rows (two rows in the example shown in Figure 4). The fastening bar 52 is formed in a square tubular shape according to the illustrated example, but it may have other cross-sectional shapes. The material of the fastening bar 52 may be, for example, an aluminum alloy, stainless steel, steel, or a hard synthetic resin material.

[0024] Multiple support members 51 and the fastening bar 52 are integrally connected by connecting means such as screws, rivets, or welding before each support member 51 is attached to the Y-length member 13. These fastening bars 52 and support members 51 are integrated and then connected to the Y-shaped elongated member 13.

[0025] Then, after the support member 51 and the fastening bar 52 are attached to the Y-length member 13, the leading edge of the heat shield sheet 20 is temporarily fixed to the fastening bar 52 by the two-sided adhesive member 40. The two-sided adhesive member 40 is a double-sided tape and is pre-attached to the fastening bar 52 or the heat shield sheet 20. In the illustrated example, this two-sided adhesive member 40 is attached to the lower surface of the fastening bar 52 over substantially its entire length.

[0026] After this, the temporarily fixed heat shield sheet 20 is firmly secured by the fastening member 54 via the pressure contact plate 53 (see Figure 5). The fastening member 54 has a male screw-shaped shaft portion 54a that is inserted into the heat shield sheet 20, and a head portion 54b connected to the rear end of the shaft portion 54a. A circular plate-shaped seat portion 54b1 with an enlarged outer diameter is integrally provided on the front end of the head portion 54b. For this fastening member 54, a screw with a seat or the like may be used.

[0027] The pressure plate 53 is a washer with a larger outer diameter than the seat portion 54b1, and is attached annularly to the shaft portion 54a of the fastening member 54 and pressed against the lower surface of the heat shield sheet 20. The heat shield sheet 20 is held in place by being sandwiched between the fastened bar 52 and the head portion 54b of the fastening member 54 at the end end in the extending direction. In the example shown in Figure 5, the heat-shielding sheet 20 is partially thinned by the pressure bonding of the pressure bonding plate 53.

[0028] According to the illustrated example, the pressure plate 53 has an outer diameter at least twice the outer diameter of the fastening member 54. This pressure-welding plate 53 allows for a relatively large contact area with the heat-shielding sheet 20. Therefore, it is possible to reduce the risk of damage to the heat-shielding sheet 20 caused by pressing force or friction when fastening the fastening member 54.

[0029] The fastening structure for the heat-shielding sheet 20 described above is applied to both one end and the other end of the heat-shielding sheet 20. The middle portion of the heat-shielding sheet 20 in the longitudinal direction is then placed on the flexible linear member 16 stretched between adjacent tight frames 14, 14, or on the upper surface of the Y-direction elongated member 13 to which the fastening member 30 is not attached.

[0030] The flexible linear member 16 is a wire, as shown in the illustrated example. This flexible linear member 16 is installed approximately directly below the valley portion of the folded roofing material 15, and approximately parallel to the extending direction of the valley portion of the roofing material 15. This flexible linear member 16 is pulled approximately horizontally, and both ends are wrapped around and fixed to the valley-side portion of the tight frame 14. The tight frame 14 is a strip-shaped metal member bent to conform to the inner surface of the folded roofing material 15.

[0031] Therefore, the portion of the heat-shielding sheet 20 placed on the flexible linear member 16 is less prone to sagging, effectively exhibiting heat-shielding performance while also having a good aesthetic appearance. Moreover, the flexible linear member 16 is easy to install.

[0032] The flexible linear member 16 can be any long, flexible member with sufficient strength; other examples include metal wire, synthetic resin wire, rope, or string.

[0033] Furthermore, the flexible linear member 16 only needs to be stretched so as to support the middle portion of the heat shield sheet 20, and it is also possible to attach both ends to fixed parts other than the tight frame 14, such as the X-direction elongated member 12 or the receiving member 19, or to stretch it diagonally with respect to the width direction of the heat shield sheet 20.

[0034] In Figure 4, the receiving member 19 extends in an elongated shape along the upper surface of the elongated member 12 in the X direction, so as to receive the lower end of the tight frame 14. This receiving member 19 is provided as needed. The lower end of the tight frame 14 is supported by the receiving member 19 if one is present, and in contact with the upper surface of the X-direction elongated member 12 if the receiving member 19 is not present. For this reason, the heat shield sheet 20 is not inserted between the tight frame 14 and the X-direction elongated member 12.

[0035] Furthermore, if the building 10 is integrally equipped with an axial suspension member 17, during the process of extending the heat-shielding sheet 20, a cut 20b is made in the heat-shielding sheet 20, and the axial suspension member 17 is inserted through this cut 20b (see Figure 4).

[0036] The axial suspension member 17 is a bolt or shaft used to suspend equipment near the ceiling (for example, electrical wires, ducts, ceiling materials, air conditioners, etc.), with one end facing downwards and the other end connected to the ceiling of the building 10.

[0037] The notch 20b is provided in a linear shape on the widthwise end side of the heat-shielding sheet 20, intersecting the extension direction of the heat-shielding sheet 20. One longitudinal end of this notch 20b is located at the edge portion of the widthwise end of the heat-shielding sheet 20, allowing the axial suspension member 17 to be inserted from the side.

[0038] After inserting the shaft-shaped suspension member 17, the remaining portion of the notch 20b is sealed with the heat-shielding adhesive sheet 24 (see Figure 4). The heat-shielding adhesive sheet 24 is a flexible and heat-shielding adhesive sheet (for example, aluminum foil or aluminum-coated tape) that can be adhered to the heat-shielding sheet 20. This heat-shielding adhesive sheet 24 prevents a decrease in the strength of the heat-shielding sheet 20 and prevents heat leakage caused by the cuts 20b.

[0039] Therefore, according to the building insulation and heat shielding structure A shown in Figures 1 to 5, the heat shielding sheet 20 can be securely fastened to the building 10, and the fastening work is also easy. Furthermore, since the heat-shielding sheet 20 is secured to the elongated fastening bar 52 by multiple fastening members 54 and pressure contact plates 53, wrinkles are less likely to form in the heat-shielding sheet 20.

[0040] In the building thermal insulation structure A, the fastening member 54 is a screw-shaped member (such as a screw or bolt) having a shaft and a head. However, as an alternative example, the fastening member 54 may be a rivet or staple, and the fastened bar 52 may be a long material (not shown) made of a material to which rivets or staples can be fastened (such as wood, artificial wood, resin, or a relatively thin-walled metal). In this case, the heat-shielding sheet 20 is placed on top of the long material, and rivets or staples are driven into the surface of the heat-shielding sheet 20 at high speed using a special tool (rivet gun or stapler). The rivets or staples press down on the surface of the heat-shielding sheet 20 with their heads, and their shafts penetrate the heat-shielding sheet 20 and bite into the long material. Therefore, according to this example, the heat-shielding sheet 20 can be efficiently attached to the long material.

[0041] <Second Embodiment> The embodiments described below are modifications to the above-mentioned building thermal insulation and heat shielding structure A; therefore, the modifications will be described in detail, and redundant detailed explanations will be omitted. In addition, the same reference numerals will be used for components that are substantially the same as those in the above-mentioned building thermal insulation and heat shielding structure A.

[0042] The building thermal insulation and heat shielding structure B, whose main parts are shown in Figures 6 and 7, is the same as the building thermal insulation and heat shielding structure A described above, but without the support member 51, and with both ends of the fastening bar 52 connected by mounting fixtures 55 to the receiving member 19, which is a fixed part on the building side facing the end in the width direction of the heat shielding sheet 20.

[0043] The mounting bracket 55 is an L-shaped bracket having one substantially perpendicular portion 55a and the other portion 55b. Two of these mounting fixtures 55 are provided, corresponding to two elongated members 12, 12 in the X direction that are spaced apart in the Y direction as shown in the figure. Each mounting fixture 55 has one piece 55a fixed to the side surface of the receiving member 19 on the long member 12 in the X direction, and the other piece 55b is positioned above the fixed portion.

[0044] Each mounting bracket 55 has a vertically oriented elongated hole 55a1, and is fastened to the side surface of the receiving member 19 by a fastening member 55a2 (for example, a screw or bolt) inserted through this elongated hole 55a1. Therefore, the vertical position of the mounting bracket 55 can be finely adjusted by loosening the fastening member 55a2.

[0045] The other end 55b of each mounting fixture 55 forms a substantially horizontal upper surface. One end of the fastening bar 52 is placed on this upper surface and secured by fastening members 55a3 such as screws or bolts. The fastening bar 52 is placed and secured at both ends by the mounting fixture 55.

[0046] Multiple heat-shielding sheets 20 are attached to the fastening bar 52 from below. More specifically, a two-sided adhesive member 40 is pre-attached to the lower surface of the fastening bar 52, extending almost its entire length in the longitudinal direction.

[0047] Each heat-shielding sheet 20 is temporarily fixed to the two-sided adhesive member 40 at its extension end, and then fixed to the fixing bar 52 by a plurality of fastening members 54 and pressure plates 53 spaced apart in the width direction (see Figure 7). This fastening structure is substantially the same as that of the building heat insulation and heat shielding structure A described above (see Figure 5).

[0048] Therefore, according to the building thermal insulation and heat shielding structure B shown in Figures 6 and 7, the heat shielding sheet 20 can be securely fastened to the building 10 by utilizing the long members 12, 12 in the X direction that are spaced apart in the width direction, and the fastening workability is also good.

[0049] In addition, as shown in the example in Figures 6 and 7, the end of the heat-shielding sheet 20 in the extension direction is fastened to the fastening bar 52. However, in other examples, it is also possible to fasten a portion of the heat-shielding sheet 20 in the extension direction to the fastening bar 52. In other words, in this example, the fastening bar 52 is positioned at a location corresponding to an intermediate portion in the extension direction of the heat shield sheet 20, and this fastening bar 52 is fixed to the receiving members 19, 19 on both sides in the width direction via a mounting fixture 55. Then, the middle portion of the heat shield sheet 20 is fixed to the lower surface of the bar to be fixed 52 using the two-sided adhesive member 40, the pressure contact plate 53, and the fastening member 54, etc., in the same manner as in the above embodiment.

[0050] <Third Embodiment> The building insulation and heat shielding structure C shown in Figures 8 and 9 is a modified version of the building insulation and heat shielding structure B described above, in which the receiving member 19 is omitted from the X-direction elongated member 12, and the widthwise end of the fastening bar 52 is fixed to the X-direction elongated member 12 by the mounting fixture 55 and the support fixture 51.

[0051] The support member 51 is attached to the upper flange 12a of the X-direction elongated member 12. This attachment structure is the same as the structure described above (see Figure 5) in which the support member 51 is attached to the flange 13a of the Y-direction elongated member 13.

[0052] The mounting bracket 55 is fastened to the upright surface of the main body portion 51a of the support bracket 51 by a fastening member 55a2 that is inserted through an elongated hole 55a1 of one piece portion 55a. Then, the fastening bar 52 is placed on and fastened to the other part 55b of the mounting fixture 55.

[0053] The structure for fastening multiple heat-shielding sheets 20 to the fastening bar 52 (see Figure 9) is substantially the same as that of the building heat insulation and heat shielding structure B described above.

[0054] Therefore, according to the building thermal insulation and heat shielding structure C shown in Figures 8 and 9, the heat shielding sheet 20 can be securely fastened to the building 10 by utilizing the long members 12, 12 in the X direction that are spaced apart in the width direction, and the fastening workability is also good.

[0055] In addition, as shown in the example in Figures 8 and 9, the end of the heat-shielding sheet 20 in the extension direction is fastened to the fastening bar 52. However, in other examples, it is also possible to fasten a portion of the heat-shielding sheet 20 in the extension direction to the fastening bar 52. In another example, a fastening bar 52 is positioned at a location corresponding to an intermediate portion in the extension direction of the heat-shielding sheet 20, and this fastening bar 52 is fixed to the X-direction elongated members 12, 12 on both sides in the width direction via a support 51 and a mounting fixture 55. Then, the middle portion of the heat shield sheet 20 is fixed to the lower surface of the bar to be fixed 52 using the two-sided adhesive member 40, the pressure contact plate 53, and the fastening member 54, etc., in the same manner as in the above embodiment.

[0056] <Fourth Embodiment> The building thermal insulation and heat shielding structure D shown in Figures 10 and 11 is the same as the building thermal insulation and heat shielding structure C described above, but with the pressure contact plate 53 replaced by a pressure bar 56.

[0057] The pressure bar 56 is a rigid, elongated body having a length that spans the entire width of the multiple heat-shielding sheets 20. The pressure bar 56 illustrated in Figure 11 has a concave vertical cross-section with a recessed lower surface, which extends continuously in the width direction of the heat shield sheet 20. The material of this pressure bar 56 may be, for example, aluminum alloy, stainless steel, or iron.

[0058] The pressing bar 56 has multiple through holes spaced apart in the longitudinal direction for inserting the fastening members 54. These through holes can be pre-drilled during the manufacturing stage of the pressing bar 56, or they may be drilled during the installation of the heat shielding sheet 20.

[0059] The pressing bar 56 is fastened to the bar 52 by a fastening member 54, with a two-sided adhesive member 40 and a heat shield sheet 20 sandwiched between it and the bar 52 to be fastened.

[0060] In other words, in the installation process of the heat-shielding sheet 20, first, the fixing bar 52 is fixed to the indoor side of the building 10 in the same manner as the building insulation and heat-shielding structures A to C described above. According to an example in Figure 10, the fixing bar 52 is fixed to the long members 12, 12 in the X direction on both sides by a support 51 and a mounting fixture 55 in the same manner as the building insulation and heat-shielding structure C (see Figure 10). The fixed fastening bar 52 functions as a stationary part for overlapping and fastening the heat shielding sheet 20 (see Figure 11).

[0061] In other words, a two-sided adhesive member 40 is attached to the fixed fastening bar 52, and the heat shield sheet 20 is temporarily fixed by this two-sided adhesive member 40. In this case, the heat shield sheet 20 is placed on the upper surface of the upper flange 13a of the Y-length member 13, with the end in the extension direction being supported (see Figure 11).

[0062] Then, while the temporarily fixed heat shield sheet 20 is pressed across its width by the pressing bar 56, multiple fastening members 54 are fastened to it. Each fastening member 54 is screwed into the fastening bar 52, passing through the pressing bar 56, the heat shield sheet 20, and the two-sided adhesive member 40.

[0063] Therefore, the building thermal insulation and heat shielding structure D shown in Figures 10 and 11 can be used to obtain substantially the same effects as the building thermal insulation and heat shielding structures A to C described above. In particular, in this building insulation and heat shielding structure D, the heat shielding sheet 20 can be pressed against the fastening bar 52 with substantially uniform pressure in the width direction, thereby reducing the risk of damage to the heat shielding sheet 20 caused by pressing force or friction when fastening the fastening member 54.

[0064] <Fifth Embodiment> The building thermal insulation and heat shielding structure E shown in Figure 12 is the same as the building thermal insulation and heat shielding structure D described above, but with a hanging portion 20e provided on the end side in the extension direction of the heat shielding sheet 20.

[0065] In other words, in this building insulation and heat shielding structure E, when temporarily fixing the heat shielding sheet 20 to the two-sided adhesive member 40 attached to the long member 12 in the X direction, the end of the heat shielding sheet 20 in the extension direction is not placed on the flange 13a of the long member 13 in the Y direction, but is left to hang down. The heat-shielding sheet 20 extends along the top of the building 10, and its end in the direction of extension is sandwiched between the fixed fastening bar 52 and the pressing bar 56, which are fixed parts. Therefore, the clamping portion of the heat-shielding sheet 20 is thin, and the portion beyond the clamping portion hangs down due to its own weight, forming a hanging portion 20e. The hanging portion 20e is formed over approximately the entire width of the heat-shielding sheet 20.

[0066] Therefore, the building thermal insulation and heat shielding structure E shown in Figure 12 provides substantially the same effects as the building thermal insulation and heat shielding structure D described above, and also improves the aesthetic appearance by preventing the gap between the flange 13a and the heat shielding sheet 20 from being visible through the hanging part 20e. Furthermore, since the hanging portion 20e at the leading edge of the heat-shielding sheet 20 is suspended so as not to come into contact with the Y-direction elongated member 13, it is possible to prevent the leading edge of the heat-shielding sheet 20 from coming into contact with the Y-direction elongated member 13 and causing wrinkles.

[0067] <Sixth Embodiment> The building thermal insulation and heat shielding structure F shown in Figures 13 and 14 has multiple through-holes 20c in the heat shielding sheet 20, and the heat shielding sheet 20 is fastened to the long member 13 (immovable part) in the Y direction by multiple support members 51 inserted through these locking holes 20c.

[0068] More specifically, the leading edge of the heat-shielding sheet 20 is provided with multiple through-slit-shaped locking holes 20c spaced apart in the width direction (see Figure 13). Each locking hole 20c is provided in the heat shield sheets 20 on both sides, so as to include the overlapping portion 20x of the two heat shield sheets 20, 20.

[0069] Each locking hole 20c is a long through-hole of an appropriate length. These locking holes 20c may be formed using a general tool (for example, a cutter, the tip of scissors, the tip of a flathead screwdriver, a hole saw, a drill, etc.) during the process of fastening the heat shield sheet 20 to the long member 13 in the Y direction, or they may be formed in the heat shield sheet 20 in advance before the above process.

[0070] Furthermore, reinforcing means (not shown) are provided around the locking hole 20c in the heat shield sheet 20 as needed. This reinforcing means is preferably provided so as to include both ends in the longitudinal direction of the locking hole 20c. Specific examples of this reinforcing means include an embodiment in which a reinforcing sheet having appropriate strength is attached to the surface and / or back surface of the heat shield sheet 20 so as to include both longitudinal ends of the locking hole 20c, and an embodiment in which a rectangular annular rigid plate material (for example, a metal plate material) is provided around the locking hole 20c.

[0071] The leading edge of the heat-shielding sheet 20 is positioned so as to overlap the lower surface of the upper flange 13a of the long member 13 in the Y direction, and is temporarily fixed by the two-sided adhesive member 40.

[0072] Each support member 51 is inserted through the locking hole 20c such that the upper half of the main body 51a is positioned above the heat shield sheet 20 and the lower half of the main body 51a is positioned below the heat shield sheet 20.

[0073] Each support member 51 is then fixed to the flange 13a of the Y-length member 13 by sandwiching the flange 13a, the two-sided adhesive member 40, and the heat shield sheet 20 from both the upper and lower sides.

[0074] In particular, according to a preferred example shown in Figure 13, locking holes 20c are provided in the overlapping portion 20x of adjacent heat shielding sheets 20, 20, and a support member 51 is inserted through this locking hole 20c, so that the flange 13a, the two-sided adhesive member 40, and the overlapping portion 20x are sandwiched from both the upper and lower sides by this support member 51. This configuration makes it possible to reduce the occurrence of gaps in the overlapping portion 20x, which could impair heat shielding performance and aesthetic appeal.

[0075] Therefore, the building insulation and heat shielding structure F shown in Figures 13 and 14 can achieve substantially the same effects as building insulation and heat shielding structures A to E, and in particular, it offers good workability when fastening the heat shielding sheet 20 to immovable parts.

[0076] In addition, as shown in the example in Figure 14, the heat-shielding sheet 20 is superimposed on the lower surface of the flange 13a, which is particularly easy to install. However, in other examples, the heat-shielding sheet 20 may be superimposed on the upper surface of the flange 13a, and the flange 13a and the heat-shielding sheet 20 may be sandwiched between the support members 51.

[0077] Furthermore, in the example shown in Figures 13 and 14, the end of the heat-shielding sheet 20 in the extension direction is fixed to the Y-direction elongated member 13. However, in other examples, it is also possible to configure the heat-shielding sheet 20 so that a portion of it in the extension direction is fixed to the Y-direction elongated member 13. In other words, in this configuration, a locking hole 20c is provided in the middle of the extension direction of the heat shield sheet 20, and a support member 51 is inserted through this locking hole 20c. Then, this support member 51 is attached to the flange 13a of the Y-direction elongated member 13 that corresponds to the middle of the extension direction of the heat shield sheet 20. At this time, similar to the above embodiment, the flange 13a, the two-sided adhesive member 40 and the heat shield sheet 20 are held in place by the support member 51.

[0078] Furthermore, in one example shown in Figures 13 and 14, the end of the heat-shielding sheet 20 in the extension direction is connected to the Y-direction elongated member 13. However, in another example, it is also possible to configure the heat-shielding sheet 20 so that its end in the width direction is connected to the X-direction elongated member 12. In other words, in this configuration, a locking hole 20c is provided on the widthwise end side of the heat shield sheet 20, and a locked support member 51 inserted through this locking hole 20c is attached to the flange 12a of the X-direction elongated member 12. At this time, similar to the above embodiment, the flange 12a, the two-sided adhesive member 40, and the heat shield sheet 20 are sandwiched by the support member 51.

[0079] Furthermore, in the above-described building insulation and heat shielding structure F, the locking hole 20c is formed using a tool such as a cutter. However, in other examples, the locking hole 20c can be formed by passing a part of the support member 51 through the heat shielding sheet 20. To explain in more detail, in this other example, a sharp portion may be formed on a part of the support 51, and this sharp portion may penetrate the heat shield sheet 20 to form a locking hole 20c. This method allows for the quick processing of locking holes 20c in the heat shield sheet 20 on-site without the need for tools such as cutters.

[0080] <Seventh Embodiment> The building insulation and heat shielding structure G shown in Figure 15 involves fastening a heat shielding sheet 20, which covers the wall portion 70 of the building 10 from the indoor side, to a fixed part on the building side (a structural member 72 in the illustrated example) using a pressing bar 56 and fastening members 54, etc.

[0081] The wall section 70 comprises an exterior wall material 71 and a plurality of structural members 72 along the indoor side of the exterior wall material 71.

[0082] The structural members 72 are long members that extend horizontally, and multiple members are arranged at intervals in the vertical direction. These structural members 72 are sometimes referred to as furring strips. Each aggregate member 72 is formed from lip channel steel, as shown in the illustrated example. This aggregate 72 functions as a fixed part for overlapping and fastening the heat-shielding sheets 20.

[0083] In addition, other examples of the aggregate 72 include studs or columns that extend in the vertical direction.

[0084] The heat-shielding sheet 20 extends in a roughly strip-like shape in the vertical direction, covering multiple structural members 72 from the indoor side, and is provided in multiple rows at intervals along the longitudinal direction of the structural members 72. Adjacent heat-shielding sheets 20, 20 are overlapped at their opposing ends to form an overlapping portion 20x.

[0085] Each heat-shielding sheet 20 is temporarily fixed to the indoor side of the structural member 72 by the two-sided adhesive member 40 described above. After this, the pressing bar 56 is placed over the indoor side of the temporarily fixed heat-shielding sheet 20 so as to extend in the width direction and pressed down. This pressing bar 56 is fastened to the structural member 72 by the fastening member 54. Each fastening member 54 is screwed into the structural member 72, passing through the pressing bar 56, the heat shielding sheet 20, and the two-sided adhesive member 40, etc.

[0086] In one example shown in Figure 15, the pressure bar 56 is arranged in a long shape so as to extend over approximately the entire length in the lateral direction of multiple rows of heat-shielding sheets 20, 20. The multiple fastening members 54 are provided at intervals in the lateral direction, including the overlapping portion 20x of the adjacent heat-shielding sheets 20, 20.

[0087] Therefore, according to the building thermal insulation and heat shielding structure G shown in Figure 15, the heat shielding sheet 20 can be securely fixed to the indoor side of the wall 70, resulting in less wrinkle formation after fixing, excellent design, and good workability. Furthermore, in addition to the heat-insulating layers 21 and 22 of the heat-shielding sheet 20, the space (air layer) between the vertically adjacent structural members 72, 72 and between the exterior wall material 71 and the heat-shielding sheet 20 can also function as a heat-insulating layer, resulting in good heat-shielding and heat-insulating performance.

[0088] <Other variations> In the above embodiment, the heat-shielding sheet 20 has a heat-shielding layer 22 formed on both sides of the heat-insulating layer 21. However, other examples of this heat-shielding sheet 20 include having a heat-shielding layer 22 on only one side of the heat-insulating layer 21, or a sheet-like material composed solely of the heat-shielding layer 22.

[0089] According to the above embodiment, the heat-insulating layer 21 of the heat-shielding sheet 20 is made of a sheet containing a large number of air bubbles. However, other examples of the heat-insulating layer 21 include a synthetic resin sheet that does not contain a large number of air bubbles, a heat-insulating sheet mainly made of glass fiber, a nonwoven fabric sheet, a flexible foamed resin sheet, and the like.

[0090] In the above embodiment, the two-sided adhesive member 40 is a double-sided tape, but another example of this two-sided adhesive member 40 is an adhesive. Furthermore, other examples of the two-sided adhesive member 40 include configurations that use magnets to attract the two surfaces together, configurations that use hook-and-loop fasteners (hook-and-loop tape) to attach them together, and configurations that use suction cups to attract the two surfaces together.

[0091] Furthermore, in the embodiment shown in Figure 5, the fastening bar 52 is fixed to the upright surface of the main body portion 51a of the support 51 that faces the tip of the heat shield sheet 20. However, in another example, the fastening bar 52 can be fixed to the lower surface of the main body portion 51a.

[0092] Furthermore, in the embodiments shown in Figures 4 to 12, the fastening bar 52 is formed to extend the entire length in the width direction of the multiple heat-shielding sheets 20. However, in other examples, it is also possible to separate the fastening bar 52 for each heat-shielding sheet 20, or to fasten a single heat-shielding sheet 20 with multiple short fastening bars.

[0093] Furthermore, the present invention is not limited to the specific configurations described above, and can be modified as appropriate without altering the essence of the invention.

[0094] <Summary> As described above, the above embodiment discloses the following invention. (1) In a building insulation and heat shielding structure in which an insulation layer and a heat shielding layer are configured in a multi-layered manner on the indoor side of the building, the structure comprises a heat shielding sheet having the heat shielding layer and a long pressing bar, wherein the heat shielding sheet is superimposed on a fixed part on the building side, and the pressing bar presses the heat shielding sheet in the width direction and is fixed to the fixed part (see Figures 10 to 12 and 15). Here, the term "structure" includes not only buildings such as houses and office buildings, but also tents and sunshades made of materials such as resin or cloth. Furthermore, the above-mentioned "building thermal insulation and heat shielding structure having a thermal insulation layer and a heat shielding layer configured in a multi-layered manner" includes both a configuration in which the heat shielding sheet has both a thermal insulation layer and a heat shielding layer, and a configuration in which the heat shielding sheet has only a heat shielding layer and the portion other than the heat shielding sheet has a thermal insulation layer. Furthermore, the above-mentioned "insulation layer" includes cases where the roofing material or wall material itself is made of insulating material and constitutes the insulation layer, or where an air layer functions as an insulation layer. (2) The building heat insulation and heat shielding structure according to (1) (see Figures 10 and 15), characterized in that the pressing bar has a length that extends over the entire width of the heat shielding sheet. (3) The building heat insulation and heat shielding structure according to (1) or (2) is characterized by comprising a fastening member that penetrates the pressing bar and the heat shielding sheet and is fastened to the immovable part (see Figures 10 to 12 and 15). (4) The building heat insulation and heat shielding structure according to (3) (see Figures 11-12 and 15), characterized in that a two-sided adhesive member is provided between the immovable part and the heat shielding sheet, and the fastening member penetrates the pressing bar, the heat shielding sheet and the two-sided adhesive member and is fastened to the immovable part. (5) The heat-shielding sheet extends along the top of the building, and its end in the direction of extension is sandwiched between the immovable part and the pressing bar, and has a hanging portion that hangs downward beyond the pressing bar, as described in any of (1) to (4) (see Figure 12). (6) A method for constructing a building thermal insulation and heat shielding structure according to any one of (1) to (5), characterized by including the step of pressing the heat shielding sheet in the width direction with the pressing bar (see Figures 10 to 12 and 15). (7) A method for constructing a building heat-insulating and heat-shielding structure according to (6), characterized by including the step of making an incision in the heat-shielding sheet and inserting an axial suspension member, which is integral with the building, through the incision (see Figures 1, 4, 6, 8, 10 and 13). (8) A method for constructing a building thermal insulation and heat shielding structure according to (7), characterized by including a step of covering the remaining portion of the notch after inserting the shaft-shaped suspension member with a heat-shielding adhesive sheet (see Figures 4, 6, 8, 10 and 13). [Explanation of symbols]

[0095] 10 Buildings 11 Posts 12 Long member in the X direction 12a Flange 13 Long member in the Y direction 13a Flange 14 Tight Frame 15 Roofing materials 16 Flexible linear member 17. Axial suspension member 19 Receiving member 20 Heat-shielding sheets 20c Locking hole 20e hanging part 20x overlapping section 21. Insulation layer 22 Heat-shielding layer 24 Heat-reflective adhesive sheet 30 Fastening member 40 Two-sided adhesive member 51 Supports 52 Retaining bar 53 Pressure Welding Plate 54 Fastening member 54b1 Seat part 55 Mounting hardware 55a One piece part 55a1 Slotted hole 55a2 Fastening member 56 Pressure bar 70 Wall 71 Exterior wall materials 72 Aggregates A-G. Thermal insulation and heat shielding structures for buildings

Claims

1. In a building insulation and heat shielding structure in which an insulation layer and a heat shielding layer are configured in a multi-layered manner on the indoor side of the building, The system comprises a heat-shielding sheet having the aforementioned heat-shielding layer and a long pressing bar, The aforementioned heat-shielding sheet is superimposed on the immovable part of the building, The building heat insulation and heat shielding structure is characterized in that the pressing bar presses the heat shielding sheet across its width and is fixed to the immovable part.

2. The building heat insulation and heat shielding structure according to claim 1, characterized in that the pressing bar has a length that extends over the entire length in the width direction of the heat shielding sheet.

3. The building heat insulation and heat shielding structure according to claim 1, further comprising a fastening member that penetrates the pressing bar and the heat shielding sheet and is fastened to the immovable part.

4. A two-sided adhesive member is provided between the immovable portion and the heat-shielding sheet. The building heat insulation and heat shielding structure according to claim 3, characterized in that the fastening member penetrates the pressing bar, the heat shielding sheet, and the two-sided adhesive member and is fastened to the immovable portion.

5. The heat-shielding sheet extends along the top of the building, and its end in the direction of extension is sandwiched between the immovable part and the pressing bar, and has a hanging portion that hangs downward beyond the pressing bar, as described in claim 1 (see Figure 12).

6. A method for constructing a building thermal insulation and heat shielding structure according to any one of claims 1 to 5, characterized by including the step of pressing the heat shielding sheet across its width using the pressing bar.

7. The construction method for a building heat insulation and heat shielding structure according to claim 6, characterized in that it includes the step of making an incision in the heat shielding sheet and inserting an axial suspension member, which is integral with the building, through the incision.

8. The construction method for a building heat insulation and heat shielding structure according to claim 7, characterized by including the step of covering the remaining portion of the notch after inserting the shaft-shaped suspension member with a heat-shielding adhesive sheet.

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