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

Abstract

To achieve good heat shielding performance. [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, a heat shielding sheet 20 having the heat shielding layer is provided to cover the building from the indoor side, and a plurality of heat shielding sheets 20 are arranged side by side in the width direction intersecting the extension direction, and two adjacent heat shielding sheets 20 are provided with overlapping portions 20x where the opposing ends in the width direction overlap, and gap closing members 41 and 42 are provided between adjacent heat shielding sheets 20 to reduce the gap formed in the overlapping portions 20x.

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 have been required to improve their heat insulation and heat shielding performance for the purpose 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, such demands are high because of the 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 performed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, in the above-described configuration, when the area of the surface to which the heat shielding sheet is to be installed is large, a plurality of heat shielding sheets are used side by side. However, in such a case, a gap may occur between adjacent heat shielding sheets, and the heat shielding performance may be impaired.

Means for Solving the Problems

[0006] In view of such problems, one of the present inventions has 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 heat shielding sheet having the heat shielding layer covers the building from the indoor side, and a plurality of the heat shielding sheets are arranged side by side in the width direction intersecting the extension direction, and two adjacent heat shielding sheets are provided with an overlapping portion where the opposing ends in the width direction overlap, and a gap-closing member is provided between adjacent heat shielding sheets to reduce the gap formed in the overlapping portion. [Effects of the Invention]

[0007] As described above, the present invention is configured to provide excellent heat shielding performance. [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] Figure 1 shows a longitudinal cross-sectional view of the main part of the building's thermal insulation and heat shielding structure, 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 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 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 longitudinal cross-sectional view of the main part of the building's thermal insulation and heat shielding structure along the line (IX)-(IX). [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 longitudinal cross-sectional view of the building's thermal insulation and heat shielding structure along the line (XI)-(XI). [Figure 12] 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 omitted. [Figure 13] Figure 12 shows a vertical cross-sectional view of the building's thermal insulation and heat shielding structure, along the X direction as shown in the figure, with the key parts enlarged. [Figure 14] Figure 12 shows a vertical cross-sectional view of the building's thermal insulation and heat shielding structure, along the Y-direction as shown in the figure, with the key parts enlarged. [Figure 15] This is a perspective view showing another example of the building thermal insulation and heat shielding structure according to the present invention. [Figure 16] This is a perspective view showing 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. <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 10A 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.

[0010] The X-direction elongated member 12 and the Y-direction elongated member 13 in the illustrated example are elongated steel materials made of magnetic material, and according to the illustrated example, they are H-shaped steel with a web and upper and lower flanges.

[0011] A plurality of elongate members 12 in the X direction are arranged in parallel at intervals in a substantially horizontal direction. 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. Each elongate member 13 in the Y direction is connected by welding or the like between adjacent elongate members 12 in the X direction. Note that the elongate members 12 in the X direction and the elongate members 13 in the Y direction may be members other than those in the illustrated example as long as they are elongate members made of a hard magnetic material.

[0012] The building heat insulation and heat shielding structure A has a heat insulation layer and a heat shielding layer configured in a multi-layered manner on the indoor side of the building 10A. This building heat insulation and heat shielding structure A includes a heat shielding sheet 20 that has a heat shielding layer and a heat insulation layer and covers the building 10A from the indoor side, and a fixing member 30 (see FIG. 4) that fixes the heat shielding sheet 20 to a fixed part on the building side (in the illustrated example, the elongate member 13 in the Y direction). The heat shielding sheet 20 is held so as to be sandwiched between the fixed part and the fixing member 30 (see FIGS. 4 and 5). ​​​​​​​​​​​​​​​​​​Between adjacent heat-shielding sheets 20, 20, an overlapping section 20x is provided, where the ends facing each other in the width direction overlap (see Figure 4). This 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.

[0017] Multiple thin-walled sections 20a, in which the thickness is partially reduced, are provided at intervals in the width direction on the longitudinal end side of each heat-shielding sheet 20. Of these multiple thin-walled portions 20a, at least some of them are located in the overlapping portion 20x (see Figure 4), and the other thin-walled portions 20a are located in portions other than the overlapping portion 20x.

[0018] Each thin-walled portion 20a is a part of the insulation layer 21 that has been thinned by removing the gas from the numerous air bubbles inside. This thin-walled portion 20a is formed in a circular concave shape so that the fastening member 30, which will be described later, can fit into it.

[0019] The process of forming the thin-walled portion 20a involves making numerous holes in a part of the heat-shielding sheet 20 using a needle-like object or the like to release the gas from inside. Preferably, a circular kenzan (flower holder) is used for this process. This operation can be easily performed even while multiple rows of heat-shielding sheets 20 are being installed.

[0020] Multiple fastening members 30 are provided at intervals in the width direction on the longitudinal end side of the heat shield sheet 20, corresponding to each thin-walled portion 20a. Each fastening member 30 is a magnet that magnetically attracts to the Y-direction elongated member 13, which is a magnetic material. For example, a relatively thin cylindrical neodymium magnet is used for this fastening member 30.

[0021] The heat-shielding sheet 20 is temporarily fixed at its longitudinal end to the lower surface of the upper flange 13a of the Y-length member 13 via a two-sided adhesive member 40. The two-sided adhesive member 40 is a double-sided tape and is attached to the heat-shielding sheet 20 or flange 13a in advance before the work of fastening the heat-shielding sheet 20 to the Y-direction elongated member 13.

[0022] The heat-shielding sheet 20 is temporarily fixed to the flange 13a from the indoor side by a two-sided adhesive member 40, and then further fixed by a fastening member 30. The fastening member 30 is magnetically attracted to the flange 13a, with the two-sided adhesive member 40 and the thin-walled portion 20a sandwiched between them (see Figure 5).

[0023] In particular, according to a preferred example of this embodiment, the fastening member 30 is provided between the building 10A and the long member 13 in the Y direction, with an overlapping portion 20x in between. In other words, the overlapping portion 20x is provided with a thin-walled portion 20a, and the fastening member 30 that contacts this thin-walled portion 20a is magnetically attracted to the Y-length member 13. This configuration creates a gap between adjacent heat-shielding sheets 20, 20, which prevents heat leakage through this gap.

[0024] Then, an adhesive sheet 23 is attached to the lower surface of the heat-shielding sheet 20 so as to cover the fastening member 30. The adhesive sheet 23 prevents the fastening member 30 from falling even if it comes loose. The adhesive sheet 23 can be any sheet that can adhere to the heat-shielding sheet 20, and preferably, a flexible adhesive sheet that can adhere to the heat-shielding sheet 20 (for example, aluminum foil or aluminum-coated tape) is used as the heat-shielding adhesive sheet.

[0025] The heat-shielding sheet 20 is fastened to the Y-length member 13 by the fastening member 30 at one end and the other end in the longitudinal direction, as described above. The middle portion of the heat-shielding sheet 20 in the longitudinal direction is 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.

[0026] 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. The flexible linear member 16 is pulled approximately horizontally, and both ends are wrapped around and fixed to the valley 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] Furthermore, a space S is secured between the multiple rows of heat-shielding sheets 20 and the roofing material 15. This air layer within space S functions as an insulating layer. Furthermore, space S is connected to the outer space between the heat-shielding sheets 20 and the roofing material 15 at the end of the widthwise direction that intersects with the extension direction of the multiple rows of heat-shielding sheets 20. In other words, an air passage 18 is provided between the widthwise ends of the multiple rows of heat-shielding sheets 20 and the roofing material 15, allowing air to flow between the heat-shielding sheets 20 and the roofing material 15 through this air passage 18. In one example shown in Figure 1, the air passage 18 communicates with the space between the tight frame 14 and the X-direction elongated member 12.

[0032] Furthermore, a gap w is ensured between the widthwise edges of the multiple rows of heat-shielding sheets 20 and the X-direction elongated member 12 (see Figure 3). This gap w prevents the widthwise edge of the heat-shielding sheet 20 from rubbing against the X-direction elongated member 12, which would generate noise or cause wrinkles, and also improves the aesthetic appearance when viewed from below. This gap w is set to, for example, about 5 to 10 mm.

[0033] Furthermore, if the building 10A 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).

[0034] 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 10A.

[0035] 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.

[0036] 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.

[0037] Therefore, the above-described building insulation and heat shielding structure A and its construction method not only provide excellent heat shielding and insulation performance, but also allows the heat shielding sheet 20 to be securely attached to the building 10A, and the attachment workability is also good.

[0038] <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.

[0039] The building thermal insulation and heat shielding structure B shown in Figures 6 and 7 is a modified version of the building thermal insulation and heat shielding structure A described above, in which the means for fastening the heat shielding sheet 20 to the building 10A is changed from the fastening member 30 to a support 51, a fastening bar 52, a two-sided adhesive member 40, a pressure contact plate 53, and a fastening member 54, etc.

[0040] Multiple support members 51 are provided at intervals in the width direction on the leading edge side of multiple (two in the illustrated example) heat shield sheets 20 (see Figure 6).

[0041] Each support member 51 is configured to have a horizontally oriented U-shaped main body that fits onto the flange 13a of the long member 13 in the Y direction, and is fixed by tightening a screw (see Figure 7). A well-known general-purpose pipe support fitting for structural steel can be used for this support member 51.

[0042] The fastening bar 52 is a long, rigid member that runs along the long member 13 in the Y direction, and support members 51 are provided at one end and the other end in the longitudinal direction of the bar. 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.

[0043] 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.

[0044] 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 pre-attached to the fastening bar 52 or the heat shield sheet 20.

[0045] After this, the temporarily fixed heat shield sheet 20 is firmly secured by the fastening member 54 via the pressure contact plate 53. 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.

[0046] The pressure plate 53 is a washer with a larger outer diameter than the seat portion 54b1, and is attached in an annular manner 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. In one example shown in Figure 7, the heat shield sheet 20 is partially thinned by the pressure bonding of the pressure bonding plate 53.

[0047] 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 due to the pressing force or friction of the pressure-welding plate 53.

[0048] Therefore, the building insulation and heat shielding structure B and its construction method shown in Figures 6 and 7 not only have excellent heat shielding and insulation performance, but the heat shielding sheet 20 can be securely fixed to the building 10A, and the fixing workability is also good.

[0049] In the building thermal insulation structure B, 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.

[0050] <Third Embodiment> The building thermal insulation and heat shielding structure C shown in Figures 8 and 9 has a fastening bar 52 to which the heat shielding sheet 20 is fastened, and this fastening bar 52 is fastened to a long member 12 in the X direction. Furthermore, this building thermal insulation and heat shielding structure C has a distinctive configuration in the overlapping portion 20x of adjacent heat shielding sheets 20, 20.

[0051] In the building's heat-insulating and heat-shielding structure C, the fastening bar 52 is fastened at one end and the other end to two adjacent X-direction elongated members 12, spaced apart. This fastening means can be configured using, for example, the support member 51 or other fittings as appropriate.

[0052] Multiple (two in the illustrated example) heat-shielding sheets 20, 20 are fastened to the fastening bar 52 from below. This fastening means can be configured using two-sided adhesive members 40, multiple pressure plates 53, and fastening members 54, similar to the building heat insulation structure B described above.

[0053] Between adjacent heat-shielding sheets 20, 20, several types (two types in the illustrated example) of gap-closing members 41, 42 are provided to reduce the gap formed in the overlapping portion 20x.

[0054] The gap-closing member 41 is a two-sided adhesive member. For this gap-closing member 41, for example, the same member as the two-sided adhesive member 40 described above may be used. This gap-closing member 41 is provided between the upper surface of one heat-shielding sheet 20 and the lower surface of the other heat-shielding sheet 20, to bond these two surfaces together and reduce the gap between them.

[0055] According to one example shown in Figure 8, the gap-closing member 41 is made by dividing a long strip of double-sided tape into appropriately sized lengths, and multiple such members are provided at intervals in the direction of extension of the heat-shielding sheets 20, 20. The reason for using the divided gap-closing members 41 in this way is primarily to improve ease of installation. As an alternative example, in order to further improve the sealing performance, the gap-closing members 41 may be provided in a long shape along the entire length in the extending direction of the heat-shielding sheet 20.

[0056] The other gap-closing member 42 is a heat-shielding adhesive sheet. For this heat-shielding adhesive sheet, for example, the same material as the heat-shielding adhesive sheet 24 described above (for example, aluminum foil or aluminum vapor-deposited tape, etc.) may be used. The gap-closing member 42 is attached to the lower surfaces of the two adjacent heat-shielding sheets 20, 20 so as to cover the portion where the widthwise edge of one heat-shielding sheet 20 overlaps with the surface of the other heat-shielding sheet 20 (see Figure 9).

[0057] In one preferred example of this embodiment, the gap-closing member 42 is provided in an elongated shape along substantially the entire length in the longitudinal direction of the heat-shielding sheet 20, but in other examples, it can be divided into multiple sections.

[0058] Therefore, the building thermal insulation and heat shielding structure C shown in Figures 8 and 9 provides substantially the same effects as the building thermal insulation and heat shielding structures A and B described above, and in addition, it reduces the gaps between adjacent heat shielding sheets 20, 20, thereby improving the heat shielding and thermal insulation performance of the multiple rows of heat shielding sheets 20.

[0059] <Fourth Embodiment> The building thermal insulation and heat shielding structure D shown in Figures 10 and 11 consists of a heat shielding sheet 20 fixed to a long member 13 in the Y direction by a plurality of support members 51. Furthermore, this building thermal insulation and heat shielding structure D has a distinctive configuration in the overlapping portion 20x of adjacent heat shielding sheets 20, 20.

[0060] In this building insulation and heat shielding structure D, multiple through-slit-shaped locking holes 20c are provided at intervals in the width direction on the leading edge side of the heat shielding sheet 20. Multiple locking holes 20c are provided on each of the two heat-shielding sheets 20, including the overlapping portion 20x of the two heat-shielding sheets 20, 20.

[0061] Each locking hole 20c is a notch of appropriate length formed by a common tool (for example, a cutter, the tip of scissors, the tip of a flathead screwdriver, a hole saw, a drill, etc.) and is formed during the process of fastening the heat shield sheet 20 to the long member 13 in the Y direction.

[0062] 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 ends in the longitudinal direction of the locking hole 20c, and an embodiment in which a rectangular annular plate material is provided around the locking hole 20c.

[0063] The leading edge of the heat-shielding sheet 20 is positioned so as to overlap the upper surface of the flange 13a of the Y-length member 13. Each support member 51 is inserted through each locking hole 20c such that its upper half is positioned above the heat shield sheet 20 and its lower half is positioned below the heat shield sheet 20, and is connected to the Y-length member 13 by clamping the flange 13a.

[0064] The upper heat-shielding sheet 20 and the lower heat-shielding sheet 20 that constitute the overlapping portion 20x are bonded together by the gap-closing member 41 described above. Furthermore, the overlapping portion 20x is provided with a clamping hole 20d and a clamping member 60.

[0065] The clamping holes 20d are through-holes that run along the width direction of the heat shield sheet 20, and multiple such holes are provided at intervals along the longitudinal direction of the heat shield sheet 20.

[0066] The clamping member 60 is configured in a clip-like or clothespin-like shape so that one end of one piece 61 and the other piece 62 is biased in the closing direction by a biasing means (for example, a spring, not shown). The clamping member 60 has one piece 61 inserted through the clamping hole 20d and positioned above the overlapping portion 20x, while the other piece 62 is positioned below the overlapping portion 20x, thereby clamping the overlapping portion 20x from both sides in the thickness direction.

[0067] Therefore, the building thermal insulation and heat shielding structure D shown in Figures 10 and 11 provides substantially the same effects as the building thermal insulation and heat shielding structures A and B described above, and in addition, the gaps between adjacent heat shielding sheets 20, 20 can be reduced by the clamping member 60, thereby improving the heat shielding and thermal insulation performance of the multiple rows of heat shielding sheets 20.

[0068] In addition, according to the above-described building thermal insulation structure D, the locking holes 20c are formed using a tool such as a cutter. However, as an alternative example, these locking holes 20c can be slit holes formed by passing a clamping member 60 through the heat-shielding sheet 20. To explain in more detail, in this other example, for instance, the tip of one piece 61 or the other piece 62 of the clamping member 60 may be made sharp, 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.

[0069] Furthermore, as another example, a sharp portion may be formed on the rectangular annular plate material used as the reinforcing means for reinforcing the locking hole 20c, and this sharp portion may penetrate the heat shield sheet 20 to form the locking hole 20c. In other words, in this example, the sharp portion of the plate material penetrates the heat-shielding sheet 20 to form a locking hole 20c, and then the locking hole 20c is reinforced with the rectangular annular plate material.

[0070] <Fifth Embodiment> The building insulation and heat shielding structure E shown in Figures 12 to 14 is a structure in which a heat shielding sheet 20 that covers the building 10B from the inside is held between a fixed part on the building side (in the illustrated example, a long member 13B in the Y direction) and a fastening member 54 in a building 10B with a gabled roof.

[0071] The structure 10B comprises a plurality of support columns 11B extending upward from the floor surface, etc., an X-direction elongated member 12B supported on the upper end side of these support columns 11B and extending inclined, a Y-direction elongated member 13B extending in a direction intersecting the X-direction elongated member 12B, and a corrugated roofing material 15B fixed to the upper surface of the X-direction elongated member 12B, and constitutes a building such as a warehouse or factory.

[0072] In the illustrated example, the X-direction elongated member 12B and the Y-direction elongated member 13B are elongated steel materials, but they can also be elongated timbers.

[0073] Multiple elongated members 12B in the X direction are arranged in the Y direction as shown in the figure, spaced apart and approximately parallel to each other. Multiple long members 12B in the X direction slope upward in a straight line toward the ridge beam (center of the roof), and are sometimes referred to as rafters or the like.

[0074] The Y-direction elongated member 13B is an elongated member arranged to be substantially perpendicular to the X-direction elongated member 12B. Multiple Y-direction elongated members 13B are provided at intervals and substantially parallel to the X-direction elongated member 12B in the direction of extension. These elongated members 13B in the Y direction are sometimes referred to as purlins or similar structures. The Y-shaped elongated member 13B in the illustrated example is formed from a lip channel steel (see Figure 13) with a roughly C-shaped cross-section that extends continuously in the longitudinal direction.

[0075] The building's thermal insulation and heat shielding structure E comprises a heat shielding sheet 20 having a heat shielding layer and a thermal insulation layer, which covers the building 10B from the indoor side, and a fastening member 54 that fastens the heat shielding sheet 20 to a fixed part on the building side (in the illustrated example, a long member 13B in the Y direction), with the heat shielding sheet 20 held between the fixed part and the fastening member 54.

[0076] In this building insulation and heat shielding structure E, the heat shielding sheet 20 and fastening members 54, etc., are the same members as those used in the building insulation and heat shielding structures A and B described above.

[0077] The heat-shielding sheet 20 extends in the X direction as shown in the figure and is installed in a long, inclined strip shape, and multiple rows are provided between adjacent X-direction long members 12B, 12B so as to be aligned in the Y direction. Adjacent heat-shielding sheets 20, 20 are overlapped at their opposing ends to form an overlapping portion 20x.

[0078] Furthermore, the multiple rows of heat-shielding sheets 20 described above are provided on both sides of the apex of the V-shaped roof. These heat-shielding sheets 20, 20 on both sides are overlapped at the apex to form an overlapping portion 20x' (see Figure 13).

[0079] Multiple portions of the heat-shielding sheet 20, including overlapping portions 20x, 20x', are fastened to the lower surface of the Y-length member 13B by multiple fastening members 30 spaced apart in the X and Y directions.

[0080] To explain in detail, the heat-shielding sheet 20 is first temporarily fixed to the lower surface of the Y-direction elongated member 13B by the two-sided adhesive member 40. The two-sided adhesive member 40 is attached to the lower surface of the Y-direction elongated member 13B along its longitudinal direction (see Figure 14).

[0081] Then, a fastening member 54, on which a pressure contact plate 53 is attached in an annular manner, is inserted through the heat shield sheet 20 and the two-sided adhesive member 40, and the tip of the fastening member 54 is screwed into the Y-direction elongated member 13B, thereby causing the pressure contact plate 53 to press against the heat shield sheet 20. Therefore, the heat shield sheet 20 is held in place by being sandwiched between the Y-direction elongated member 13B and the head 54b and pressure contact plate 53 of the fastening member 54.

[0082] Furthermore, the gap-closing members 41 and 42 may be provided at the overlapping portions 20x and 20x' of the heat-shielding sheet 20.

[0083] Therefore, according to the building insulation and heat shielding structure E shown in Figures 12 to 14, the heat shielding sheet 20 can be securely fixed to the building 10B, and the workability is also good.

[0084] <Sixth Embodiment> The building insulation and heat shielding structure F shown in Figure 15 involves holding a heat shielding sheet 20, which covers the wall portion 70 of the building 10A (or 10B) from the indoor side, between a fixed part on the building side (a structural member 72 in the illustrated example) and a fastening member 30.

[0085] 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.

[0086] 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 72, according to the illustrated example, is a lip channel steel and is a magnetic material.

[0087] In addition, other examples of the aggregate 72 include studs or columns that extend in the vertical direction.

[0088] 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.

[0089] Each heat-shielding sheet 20 is temporarily fixed to the indoor side of the structural member 72 by a two-sided adhesive member 40. Next, the fastening member 30 is placed on top of the indoor side of the temporarily fixed heat-shielding sheet 20. The fastening member 30 is magnetically attached to the aggregate 72, with the heat-shielding sheet 20 sandwiched between it and the aggregate 72. Then, the adhesive sheet 23 is attached to the indoor side of the heat-shielding sheet 20 so as to cover the fastening member 30.

[0090] Therefore, according to the building insulation and heat shielding structure F shown in Figure 15, the heat shielding sheet 20 can be securely fixed to the wall portion 70 of the building 10A (or 10B), and the workability is also good. 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.

[0091] <Seventh Embodiment> The building thermal insulation and heat shielding structure G shown in Figure 16 is a structure in which the fastening member 30 and adhesive sheet 23 are replaced with a pressure contact plate 53 and a fastening member 54, as in the building thermal insulation and heat shielding structure F. In other words, this building insulation and heat shielding structure G holds the heat shielding sheet 20, which covers the wall portion 70 of the building 10A (or 10B) from the indoor side, between a fixed part on the building side (a structural member 72 in the illustrated example) and the head 54b of the fastening member 54.

[0092] A pressure contact plate 53 is attached in an annular manner to the shaft portion 54a of the fastening member 54. This fastening member 54 penetrates the heat shield sheet 20 and the two-sided adhesive member 40, etc., at multiple locations, including the overlapping portion 20x between adjacent heat shield sheets 20, 20, and is screwed into the structural member 72. As a result, the heat-shielding sheet 20 is held immovably by being sandwiched between the structural member 72 and the head 54b of the fastening member 54 and the pressure contact plate 53.

[0093] Therefore, the building insulation and heat shielding structure G shown in Figure 16 exhibits good fastening performance, fastening workability, heat shielding performance, and insulation performance, similar to the building insulation and heat shielding structure F.

[0094] <Variation> 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.

[0095] 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.

[0096] In the above embodiment, the thin-walled portion 20a was formed by removing internal air bubbles. However, other examples of this thin-walled portion 20a include a form in which a part of the heat-shielding sheet 20 is carved into a concave shape, or a form in which a part of the heat-shielding sheet 20 is compressed and flattened.

[0097] 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.

[0098] In the above embodiment, the pressure plate 53 is a circular washer, but other examples of the pressure plate 53 include a strip-shaped member through which multiple fastening members 54 can be inserted, and other forms not shown in the illustration.

[0099] 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.

[0100] <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 covering the building from the indoor side, wherein a plurality of heat shielding sheets are arranged side by side in the width direction intersecting the extension direction, and two adjacent heat shielding sheets are provided with an overlapping portion where the opposing ends in the width direction overlap, and a gap-closing member is provided between adjacent heat shielding sheets to reduce the gap formed in the overlapping portion (see Figures 1 and 8 to 11). 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 gap-closing member includes a heat-shielding adhesive sheet, and the heat-shielding adhesive sheet is attached to the two heat-shielding sheets such that it covers the portion where the widthwise edge of one of the two adjacent heat-shielding sheets overlaps with the surface of the other heat-shielding sheet (see Figures 8 and 9). (3) The gap-closing member includes a two-sided adhesive member, which is provided between one of two adjacent heat-shielding sheets and the other opposing heat-shielding sheet, thereby bonding these two surfaces together, as described in (1) or (2) (see Figures 8 and 9). (4) The building heat insulation and heat shielding structure according to any one of (1) to (3) is characterized in that the gap-closing member includes a clamping member that is inserted through a clamping hole formed in the overlapping portion and clamps the overlapping portion from both sides in the thickness direction. (See Figures 10 and 11). (5) A method for constructing a building thermal insulation and heat shielding structure according to any one of (1) to (4), characterized by including the step of providing the gap-closing member in the overlapping portion (see Figures 8 to 11). (6) A method for constructing a building heat insulation and heat shielding structure according to (5), 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 8 and 10). (7) The construction method for a building heat insulation and heat shielding structure according to (6), 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 (see Figures 8 and 10). [Explanation of symbols]

[0101] 10A,10B Building 11,11B Post 12,12B Long member in the X direction 13,13B Long member in the Y direction 14 Tight Frame 15,15B Roofing material 18 Air passage 20 Heat-shielding sheets 20a Thin-walled section 20c Locking hole 20d Clamping hole 20x, 20x' overlapping section 21. Insulation layer 22 Heat-shielding layer 23 Adhesive Sheets 24 Heat-reflective adhesive sheet 30 Fastening member 40 Two-sided adhesive member 41,42 Gap sealing member 51 Supports 52 Retaining bar 53 Pressure Welding Plate 54 Fastening member 54a Shaft 54b Head 54b1 Seat part 60 Clamping member 70 Wall A-G. Thermal insulation and heat shielding structures for buildings S space

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, A heat-shielding sheet having the aforementioned heat-shielding layer, comprising a heat-shielding sheet that covers the building from the indoor side, Multiple heat-shielding sheets are arranged side by side in a width direction intersecting the extension direction. Two adjacent heat-shielding sheets are provided with overlapping sections where their opposing ends in the width direction overlap. A building heat insulation and heat shielding structure characterized in that gap-closing members are provided between adjacent heat shielding sheets to reduce the gap formed in the overlapping portion.

2. The gap-closing member includes a heat-shielding adhesive sheet. The building heat insulation and heat shielding structure according to claim 1, characterized in that the heat-shielding adhesive sheet is attached to the two heat-shielding sheets so as to cover the portion where the widthwise edge of one of the two adjacent heat-shielding sheets overlaps with the surface of the other heat-shielding sheet.

3. The gap-closing member includes a two-sided adhesive member, The building heat insulation and heat shielding structure according to claim 1, characterized in that the two-sided adhesive member is provided between one surface of one of two adjacent heat shielding sheets and the other surface of the heat shielding sheet facing it, thereby bonding these two surfaces together.

4. The building heat insulation and heat shielding structure according to claim 1, characterized in that the gap-closing member includes a clamping member that is inserted through a clamping hole formed in the overlapping portion and clamps the overlapping portion from both sides in the thickness direction.

5. A method for constructing a building thermal insulation and heat shielding structure according to any one of claims 1 to 4, characterized by including the step of providing the gap-closing member in the overlapping portion.

6. The method for constructing a building heat insulation and heat shielding structure according to claim 5, 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.

7. The construction method for a building heat insulation and heat shielding structure according to claim 6, 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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