JP2016199039A - Heat insulation laminate and construction method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat insulation laminate easy to transfer even with very limited space and easy to being processed.SOLUTION: There is provided a heat insulation laminate (10) containing an inorganic fiber-based heat insulation material (1) having a first main surface and a second main surface extending in a length direction and a width direction and a skin material (2) at least partially adhering to the first main surface of the inorganic fiber-based heat insulation material, the inorganic fiber-based heat insulation material has one or more slit (1a) extending almost parallel to the length direction and/or the width direction and thereby the heat insulation laminate can be folded.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a heat insulating laminate and a construction method thereof. In particular, the present invention relates to a heat-insulating laminate that is easy to carry and easy to construct even in a very limited space, and a construction method thereof.

  Various heat insulating materials are used to save energy in buildings. Examples of such a heat insulating material include a foamed resin heat insulating material, a rock wool heat insulating material, and a glass wool heat insulating material.

  When an inorganic fiber-based heat insulating material such as a rock wool-based heat insulating material or a glass wool-based heat insulating material is used, for example, the wall of a house may have a structure as shown in the horizontal sectional view of FIG. That is, from the indoor side to the outdoor side, the wall of the house is wallpaper 11, an inner wall material 12 such as a gypsum board, an airtight moisture-proof sheet 13 such as a polyethylene sheet, and an inorganic fiber-based heat insulating material 14 between columns or studs 15. The plywood for structure 16, the moisture-permeable waterproof sheet 17, the ventilation layer 19 formed by the ventilation trunk edge 18, and the outer wall material (siding) 20 may be provided. An additional heat insulating material may be provided between the inorganic fiber-based heat insulating material 14 and the moisture permeable waterproof sheet 17.

  The wall of a house or the like can improve the internal airtightness by having the moisture-proof sheet 13. Moisture that has entered the inorganic fiber-based heat insulating material located on the outdoor side of the moisture-proof sheet may deteriorate the heat insulating performance of the inorganic fiber-based heat insulating material, but this moisture passes through the moisture-permeable waterproof sheet and further ventilates. Can be drained from the bed.

  The floor of a house or the like may have a structure as shown in FIG. That is, the floor of the house is from the indoor side to the ground side, floor material (floor finishing material + floor base material) 21, moisture-proof sheet 22, inorganic fiber-based heat insulating material 24 between joists 23, and inorganic fibers between large draw 25 The heat insulating material 26 and the moisture permeable waterproof sheet 27 may be provided. The large pull 25 is supported by the floor bundle 28. For example, the moisture-proof sheet 22 may not be used by making the floor base material of the floor material 21 moisture-proof.

  Here, as shown in Patent Document 1, the inorganic fiber-based heat insulating material may be used integrally with a skin material such as a moisture-permeable waterproof sheet. Furthermore, a method is known in which an inorganic fiber-based heat insulating material is covered with a skin material, and an ear portion of the skin material is fastened to a structural member of a building to construct the heat insulating material with the skin material.

  Further, the foamed resin heat insulating material may be provided with slits (cuts). For example, Patent Document 2 discloses an invention in which a foamed resin-based heat insulating material that is difficult to secure a thickness is provided with a slit provided in the foamed resin-based heat insulating material and bent. Patent Documents 3 and 4 disclose a foamed resin-based heat insulating material that is provided with a slit in a foamed resin-based heat insulating material that has a relatively high elasticity and is difficult to fit into a construction site, and facilitates this.

Japanese Patent Laid-Open No. 2001-9940 JP 2001-40794 A JP-A-11-22049 JP 7-293923 A

  In recent years, many renovations have been performed on buildings to improve the heat insulation performance of the buildings. In this case, for example, in a renovation in which a heat insulating material is installed under the floor of a house, the floor may be removed, the heat insulating material may be installed, and the floor etc. may be laid again. In some cases, insulation is applied.

  In the latter case, there is an advantage that the resident can use the house during the construction, but the inspection opening is usually very narrow and the work space under the floor is also very narrow, but the insulation material to be constructed in the large booth etc. is a comparison Because of its large size, there is a problem that construction is difficult.

  That is, since the height from the ground to the lower part of the fork is about 250 mm to 600 mm, and is usually 250 mm to 400 mm or 300 mm to 400 mm, the operator needs to work while lying on the ground. In addition, the thermal insulation between the large boots requires a thermal insulation material of width 900 mm × length 2000 mm (or half of 1000 mm) × thickness 100 mm, while the underfloor inspection port is about 450 mm × 450 mm (even if it is large). 561 mm × 561 mm) is common. Compared with foamed resin heat insulation, inorganic fiber heat insulation is relatively easy to deform due to its high flexibility, and it is easy to transport and install even in a very limited space. Therefore, it is very difficult to deform the inorganic fiber-based heat insulating material and transport it under the floor even if it is relatively easily deformed.

  Therefore, when constructing the inorganic fiber-based heat insulating material between the large pulls under the floor of an existing house, the heat insulating material is cut into a size that can enter the under-floor inspection port and transported one by one under the floor. Then, after laying under the floor, it is necessary to insert a moisture-permeable waterproof sheet from the lower side after being fitted between the large draws, and further to fix it to the large draw with a plastic band or the like.

  In addition, when building a house in a densely populated area, etc., when installing a heat insulating material on the back of the ceiling, etc., as in the case of the above floor work, the heat insulating material is transported from a very small entrance, and in a very narrow space. There is a problem that it is necessary to construct a heat insulating material and the construction is difficult.

  Then, an object of this invention is to provide the heat insulation laminated body which is easy to carry in a very limited space, and is easy to construct, and its construction method.

The present inventors have found that the above problems can be solved by the present invention having the following aspects:
<< Aspect 1 >>
Insulating laminate including an inorganic fiber-based heat insulating material having a first main surface and a second main surface extending in a length direction and a width direction, and a skin material that is at least partially bonded to the first main surface of the inorganic fiber-based heat insulating material Body,
The heat insulation laminated body in which the said inorganic fiber type heat insulating material has one or more slits extended substantially parallel to the length direction and / or the width direction, and can be folded by it.
<< Aspect 2 >>
The inorganic fiber-based heat insulating material has the two slits, and the two slits are located at about 1/4 of the width of the inorganic fiber-based heat insulating material from both ends in the width direction. The heat insulation laminated body of aspect 1 which is located in.
<< Aspect 3 >>
The skin material has a width longer than the width of the inorganic fiber-based heat insulating material, and the skin material has an ear portion extending from at least the width direction of the inorganic fiber-based heat insulating material. The thermal insulation laminate according to aspect 2, wherein the ear portion enables the insulation laminate to be fastened to a fixed location.
<< Aspect 4 >>
The heat insulation laminated body of the aspect 3 with which the said inorganic fiber type heat insulating material has a density of 20 kg / m < ³ > or more.
<< Aspect 5 >>
Construction method of heat insulation laminate including the following steps:
The process of folding the heat insulation laminated body as described in any one of aspect 1-4, and conveying to the construction location vicinity;
A step of deploying the conveyed thermal insulation laminate near the construction site; and a step of fixing the deployed thermal insulation laminate to the construction site.
<< Aspect 6 >>
A method of constructing a heat-insulating laminate between large underlays of an existing building including the following steps:
Folding the heat-insulating laminate according to any one of the preceding aspects 1 to 4 and carrying it from below the floor inspection port of 700 mm or less x 700 mm or less to the floor where the height from the ground to the lower part of the draw is 250 to 600 mm ;
A step of expanding the heat-insulated laminate that is folded and carried under the floor; and a step of installing the expanded heat-insulating laminate in a large draw and fastening the ear portion of the skin material of the heat-insulated laminate to a large draw,
Here, the inorganic fiber-based heat insulating material has a width of 700 mm to 2000 mm, a length of 700 mm to 2000 mm, and a thickness of 30 mm to 120 mm, and the skin material is a moisture-permeable waterproof sheet, and It has a width longer than the width of the inorganic fiber-based heat insulating material, thereby having an ear portion of 70 mm to 130 mm.

  According to the heat insulation laminated body and its construction method of the present invention, even in a very limited space, it is easy to carry and construction.

The cross-sectional view of the horizontal direction of a wall structure is illustrated. The cross-sectional view of the underfloor structure is illustrated. It is a perspective view of the embodiment which changed the slit of the heat insulation laminated body of this invention. (A) The cross-sectional view of the heat insulation laminated body of one embodiment of this invention is illustrated. (B) The cross-sectional view of the folded state of the heat insulation laminated body of one embodiment of this invention is illustrated. (C) The cross-sectional view of the state where the heat insulation laminate of one embodiment of the present invention is constructed between the large draws is illustrated.

  Hereinafter, embodiments of the present invention will be described in detail. Note that the present invention is not limited to the following embodiments, and can be implemented with various modifications within the scope of the gist of the present invention.

<Insulated laminate>
The heat insulating laminate of the present invention is at least partially bonded to the first main surface of the inorganic fiber-based heat insulating material and the inorganic fiber-based heat insulating material having the first main surface and the second main surface extending in the length direction and the width direction. Including skin material. Here, the inorganic fiber-based heat insulating material has one or more slits extending substantially parallel to the length direction and / or the width direction thereof, and can be folded so that the skin material is on the inside. It is like that.

  Since the heat insulating laminate of the present invention has slits in the inorganic fiber heat insulating material, the size in the width direction and / or the length direction can be reduced, and the inorganic fiber heat insulating material is bonded to the skin material. Therefore, even if the inorganic fiber-based heat insulating material is bent, the heat insulating laminate does not lose its integrity, and can be easily transported to a very narrow space from the floor inspection port to the floor.

  Conventionally, when the entrance to the construction place is narrow, the inorganic fiber-based heat insulating material is cut and transported, and then the skin material is applied, but according to the heat insulating laminate of the present invention, Since it can be transported to such a place, it is not necessary to separately construct the inorganic fiber heat insulating material and the skin material, and it is very advantageous because only one construction is required.

  This heat insulation laminate may be used in any place such as the wall, ceiling, under floor, etc. of buildings, it is difficult to carry around, and it is used in places where work space for construction is very limited. be able to. Preferably, this heat insulating material can be used suitably when constructing it in the ceiling and / or under the floor of an existing building. Specifically, the heat insulating laminate of the present invention can be used particularly suitably when it is constructed between large draws under the floor.

  In the folded state, the heat-insulating laminate of the present invention is preferably 700 mm or less × 700 mm or less, 650 mm or less × 650 mm or less, 600 mm or less × 600 mm or less, 500 mm or less × 500 mm or less, or 450 mm or less × 450 mm or less inlet (for example, It can pass through under floor inspection openings, ceiling back openings, etc.). The heat-insulating laminate of the present invention has a side length of 600 mm or less, 500 mm or less, 450 mm or less, 400 mm or less, 300 mm or less, or 260 mm or less, and 200 mm or more, 250 mm or more, 300 mm or more, or 350 mm or more. It is possible to unfold from a folded state in a space (particularly the height under the floor).

  The perspective view of each embodiment of the heat insulation laminated body of this invention is shown to Fig.3 (a)-(c). FIG. 3A illustrates a heat insulating laminate (10) having slits (1a) in both the length direction and the width direction, and FIG. 3 (b) shows two slits (1a in the length direction). ), And FIG. 3C illustrates the heat insulating laminate (10) having two slits (1a) in the width direction.

  This heat insulation laminated body (10) has the 1st main surface (1) of the inorganic fiber type heat insulating material (1) which has the 1st main surface (1x) and the 2nd main surface (1y), and an inorganic fiber type heat insulating material (1). 1x) and a skin material (2) having a width longer than that of the inorganic fiber-based heat insulating material (1). The skin material (2) has the ear | edge part (2a) extended from the inorganic fiber type heat insulating material in the width direction.

  FIG. 4 shows cross-sectional views of one embodiment of the thermal insulation laminate of the present invention in various states. FIG. 4A is a cross-sectional view in a state in which the heat insulation laminate is developed, FIG. 4B is a cross-sectional view in a state in which the heat insulation laminate is folded, and FIG. It is sectional drawing of the state which constructed the heat insulation laminated body in the construction location.

  Fig.4 (a) has shown the heat insulation laminated body (10) which has an inorganic fiber type heat insulating material (1) which has two slits (1a) in the length direction. By folding this from the slit (1a), as shown in FIG. 4 (b), the heat insulating laminate (10) becomes about twice as thick while the width becomes about 1/2. If it is such a state, a heat insulation laminated body can be conveyed to a construction place from a small entrance (for example, underfloor inspection port, ceiling back door, etc.). And as shown in FIG.4 (c), when fixing a heat insulation laminated body (10) to a to-be-fixed member (3) (for example, large drawing), after extending a heat insulation laminated body (10), an outer skin The ear | edge part (2a) of material (2) is fastened to a to-be-fixed member (3) using a fixing member (4) (for example, tucker). Similarly, also when it has a slit in the width direction, the heat insulation laminate can be folded and conveyed from the entrance, and fixed to the member to be fixed. When slits are provided in the width direction and the length direction, the slits in both directions may be folded as folds, or one of the slits may be folded as a fold.

<Inorganic fiber insulation>
The inorganic fiber-based heat insulating material used in the present invention has a first main surface and a second main surface extending in the length direction and the width direction, and has a thickness. This heat insulating material preferably further has a side surface, and preferably has a substantially rectangular parallelepiped shape, particularly a plate shape. That is, the inorganic fiber heat insulating material used in the present invention may have a width, a length, and a thickness. The substantially rectangular parallelepiped does not need to be a rectangular parallelepiped, and includes any shape as long as it can solve the problems of the present invention.

  The inorganic fiber-based heat insulating material used in the present invention has one or more slits extending substantially parallel to the length direction and / or the width direction thereof, so that the heat insulating laminate of the present invention can be bent. It has become. Here, “substantially parallel” does not need to be parallel, and includes the direction if the heat insulation laminate can be bent so that the width dimension of the heat insulation laminate can be reduced due to slits in that direction. Shall be. By bending the heat insulating laminate of the present invention, the dimension in the width direction can be reduced according to the number of slits.

  The depth of the slit is not particularly limited as long as the heat insulating laminate can be folded, and the inorganic fiber heat insulating material may be completely divided. Moreover, when it has divided completely, it is not what originally divided one heat insulating material, but you may make it become a practical slit by using the heat insulating material manufactured separately next to each other.

  The number of slits extending substantially parallel to the length direction may be one or more, and may be two or more, three or more, four or more, and five or more. The more slits, the smaller the space (especially the underfloor height) required for unfolding from the folded state, while the smaller the slits, the better the handling. Therefore, the number of slits may be 10 or less or 8 or less. In the case of having a slit extending substantially parallel to the width direction, the slit extending substantially parallel to the length direction may not exist.

  The inorganic fiber heat insulating material used in the present invention may have one or more slits extending substantially parallel to the width direction. The number of slits may be one or more, and may be two or more, three or more, four or more, and five or more. Further, the number of slits may be 10 or less or 8 or less. For example, when using a long heat insulating material and having two slits substantially parallel to the length direction, the heat insulating material in the middle of the divided heat insulating materials may be bent by its own weight. However, in this case, it may be possible to prevent deflection by providing slits in the width direction instead of the length direction.

  The inorganic fiber-based heat insulating material used in the present invention preferably has two slits, which are respectively located at approximately 1/4 of the length of the width from both ends of the width of the inorganic fiber-based heat insulating material. . Thereby, the space required when developing the composite material of the present invention can be further reduced. That is, in the case of one slit, in order to expand the folded heat insulation laminate, a space having a length half the width of the inorganic fiber-based heat insulating material is required. If the slit is located, the space required for developing the folded heat insulation laminate is only ¼ of the width of the inorganic fiber heat insulating material. Here, approximately ¼ of the length of the width from both ends is not limited to the position of ¼ as long as the above-described effect can be obtained. It may be about / 3 to 1/5.

  When there is one slit, it is preferable that the position of the slit is substantially at the center in the width direction of the inorganic fiber-based heat insulating material in that the dimension in the width direction becomes the smallest in the folded state. Similarly, when there are a large number of slits, it is preferable that the slits are present at positions where the dimensions in the width direction and the thickness direction are appropriate depending on the application in a state in which the inorganic fiber-based heat insulating material is folded. .

  The inorganic fiber-based heat insulating material used in the present invention may have a width of 600 mm or more, 700 mm or more, or 800 mm or more, and 2000 mm or less, 1800 mm or less, 1500 mm or less, 1200 mm or less, or 1000 mm or less in a developed state. Good. When it is in such a range, it becomes an appropriate dimension when it is inserted between the large draw or the trunk edge. The inorganic fiber-based heat insulating material of the present invention can have a shorter width in a bent state than the expanded state, depending on the number of slits.

  The inorganic fiber-based heat insulating material used in the present invention may have a length of, for example, 700 mm or more, 800 mm or more, 2500 mm or less, 2000 mm or less, 1800 mm or less, 1500 mm or less, 1200 mm or less, or 1000 mm or less.

  The inorganic fiber-based heat insulating material used in the present invention has a length difference between the length direction and the width direction of 250 mm or less, 200 mm or less, 150 mm or less, or 120 mm or less, and 30 mm or more, 50 mm or more, or 70 mm or more. It may be a square shape.

  Moreover, the inorganic fiber type heat insulating material used in the present invention may have a thickness of 30 mm or more, 40 mm or more, or 50 mm or more, and 200 mm or less, 150 mm or less, 120 mm or less, or 100 mm or less. Two or more heat insulating laminates of the present invention can be inserted between one large draw.

  On the other hand, the heat insulating material on the back of the ceiling is not inserted between the members, but is usually only laid on the ceiling surface. If it is possible, the size is not particularly limited. For example, when using the heat insulation laminated body of this invention for a ceiling back, the magnitude | size of the inorganic fiber type heat insulating material used there can be made the same as the dimension mentioned above.

  Specific examples of the inorganic fiber-based heat insulating material used in the present invention include rock wool and glass wool, and glass wool can be particularly preferably used.

The density of the inorganic fiber-based heat insulating material used in the present invention may be 8 kg / m ³ or more, 10 kg / m ³ or more, 15 kg / m ³ or more, 20 kg / m ³ or more, or 25 kg / m ³ or more, and 100 kg. / M ³ or less, 80 kg / m ³ or less, 60 kg / m ³ or less, or 40 kg / m ³ or less. When the density of the inorganic fiber-based heat insulating material is increased, the heat insulating property is increased, while the felt shape is changed to the board shape and is not easily deformed. However, the heat insulating laminate of the present invention is advantageous in that it can be transported to a narrow space even if it is difficult to deform, and therefore, for example, a high density inorganic fiber heat insulating material of 20 kg / m ³ or more can be used. .

The inorganic fiber-based heat insulating material used in the present invention may contain a binder resin with a relatively high content so that it becomes a board shape. Examples of the binder resin include phenol resin, and the binder resin is 3% by weight or more, 5% by weight or more, or 7% by weight or more, or 20% by weight with respect to the total weight of the inorganic fiber-based heat insulating material. Hereinafter, it may be contained in the inorganic fiber-based heat insulating material in a range of 15% by weight or less or 12% by weight or less. For example, in the case of an inorganic fiber heat insulating material having a density of 20 kg / m ³ or more and 100 kg / m ³ or less, when the binder resin is contained at a content of 7 wt% or more and 12 wt% or less, Easy to maintain the shape.

  Examples of the binder resin include binder resins for inorganic fiber heat insulating materials (particularly glass wool) such as phenol resins, acrylic resins, epoxy resins, and melamine resins. Moreover, you may use the binder which has a natural origin material as a main component which does not discharge | release formaldehyde substantially. Examples of such binders include binders described in JP-T 2009-517513 and JP-T 2009-517514.

<Skin material>
The skin material is at least partially bonded to the first main surface of the inorganic fiber-based heat insulating material. The skin material may be in the form of a sheet or may surround the inorganic fiber-based heat insulating material in the form of a bag.

  By adhering the skin material and the inorganic fiber-based heat insulating material, even if the inorganic fiber-based heat insulating material is folded at the slit position, the integrity can be maintained as the heat-insulating laminate. Therefore, the skin material is preferably bonded to the inorganic fiber heat insulating material on both sides of the slit of the first main surface of the inorganic fiber heat insulating material.

  It is preferable that the width | variety and length of a skin material are more than the dimension of the width | variety and length of the inorganic fiber type heat insulating material to be used. The thickness of the skin material may be, for example, 3 mm or less, 1 mm or less, 0.5 mm or less, 0.3 mm or less, 0.25 mm or less, 0.1 mm or less, or 0.05 mm or less.

  In particular, the skin material preferably has a width longer than that of the inorganic fiber-based heat insulating material. This makes it easy to fix to the fixing part of the heat insulation laminate such as a large pull using a tucker, a nail or the like (preferably a tucker), using the ear part extending at least from the width direction of the inorganic fiber heat insulating material. It becomes possible to do. Preferably, the dimension of the ear portion of the skin material is 10 mm or more, 20 mm or more, 50 mm or more, or 70 mm or more, and can be 150 mm or less, 130 mm or less, 110 mm or less, or 100 mm or less. The ear part may exist in both the width direction and the length direction, or may exist only in the width direction or only in the length direction. That is, the ear | edge part may extend from 4 directions, 3 directions, 2 directions, or 1 direction of the 1st main surface of an inorganic fiber type heat insulating material. Preferably, the ear portion extends in two directions on both sides along the long side of the sides in the width direction and the length direction of the inorganic fiber heat insulating material.

  The skin material is preferably composed of a moisture-permeable material so that moisture that has entered the inorganic fiber-based heat insulating material due to condensation or the like can be discharged. The skin material is preferably made of a windproof or waterproof material so as to provide higher heat insulation. More preferably, the skin material is made of a moisture-permeable and waterproof material.

  Specifically, examples of the skin material include polymer films such as polyolefin resin, polyvinyl alcohol resin, polystyrene resin, polyamide resin, polyester resin, and polyurethane resin. Further, it may be a woven or non-woven fabric of a synthetic resin such as polyolefin or polyester, or may be a laminate of the above polymer film and a woven or non-woven fabric. More specifically, examples of the moisture-permeable and waterproof skin material include a skin material described in JP-A-2002-172739. In addition, a nonwoven fabric “Tyvek” (trademark, DuPont Co., Ltd.) obtained by thermocompression bonding of high-density polyethylene three-dimensional network fibers can also be used. Further, “Outole” (trademark, Mitsubishi Plastics Infrastructure Tech Co., Ltd.), “Waterguard” (trademark, Keimu Co., Ltd.), “Super Airtex” (trademark, Fukubi Chemical Industry Co., Ltd.) and the like can be mentioned.

  The moisture permeable and waterproof skin material has, for example, a moisture permeability resistance specified in JIS A 6111 of 0.25 m 2 · s · Pa / μg or less, 0.20 m 2 · s · Pa / μg or less, or 0.18 m 2 · s. It may be Pa / μg or less, 0.01 m 2 · s · Pa / μg or more, or 0.05 m 2 · s · Pa / μg or more. Further, the water pressure resistance specified in JIS A 6111 may be, for example, 3 kPa or more, 5 kPa or more, or 7 kPa or more, or 100 kPa or less or 50 kPa or less.

  The skin material and the inorganic fiber-based heat insulating material can be bonded by a known adhesive depending on the material used in each. For example, examples of the adhesive include hot-melt polyolefin adhesives, styrene butadiene rubber adhesives, polyurethane adhesives, acrylic adhesives, epoxy resin adhesives, silicone resin adhesives, and the like. .

《Method of construction of heat insulation laminate》
The construction method of the heat insulation laminated body of this invention is related with the method of installing said heat insulation laminated body in places, such as a wall surface of a building, a ceiling back, a floor. This method includes at least a step of folding the heat insulation laminate and transporting it to the vicinity of the construction site; a step of deploying the transported heat insulation laminate near the construction location; and a step of installing the deployed heat insulation laminate at the construction location. Including.

  In the step of folding the heat insulation laminate and transporting it to the vicinity of the construction site, the heat insulation laminate is folded so that the skin material is inside, thereby reducing the width of the heat insulation laminate. For example, when the inorganic fiber-based heat insulating material has two slits, only one side may be folded when it is not necessary to fold both of the slits. It is very advantageous to have this step when the entrance to the vicinity of the construction site, for example, the ceiling back door, the underfloor inspection port, and the like are very narrow.

  Next, the conveyed heat insulation laminated body is expand | deployed in the construction location vicinity. For example, when deploying a heat insulation laminate under the floor of an existing house, an operator lies on the ground while lying on his back, and a very small gap (the height from the ground to the lower part of the forehead is about 250 mm to 600 mm). Yes, usually 250 mm to 400 mm or 300 mm to 400 mm), it is necessary to develop the heat insulation laminate. In this case, in particular, it is advantageous to use a heat insulating laminate including an inorganic fiber heat insulating material having two or more slits, which requires a small space for deployment.

  Furthermore, the expanded heat insulation laminated body is installed in a construction location. In the installation of the heat insulation laminate, it is not particularly necessary to use a fixing means in the ceiling or the like. When fixing to a structural member or the like, a plastic band, a pin, wood or the like may be used as the fixing means. In heat-insulated laminates with ears on the skin material, the ears can be fastened to a fixed member (for example, large pull, joist, torso, stud, pillar, etc.) with a tucker or the like. Is easy.

  Usually, the width between the large draw and the width between the trunk edges is larger than the width between the joists and between the pillars and the studs. Therefore, in the construction method of the present invention, it is advantageous to construct the heat insulation laminate between the large draw or between the trunk edges. In the case where an existing heat insulating material is installed in the joist or the like, the heat insulating laminated body of the present invention can be further constructed, for example, in a large draw without removing the existing heat insulating material.

A floor model having a flooring material, joists, large pulls, and a heat insulating material was prepared, and this was placed on the upper surface of a cube having an upper side of about 1.5 m on one side. A fan was installed inside the cube, and the airtightness of each floor model was evaluated using an airtightness measuring device installed outside the cube. Here, according to the decompression method described in “Chapter 2 Housing Airtightness Performance Testing Method” of “Housing Airtightness Performance Testing Method” (Building Environment and Energy Conservation Organization), how much is applied to the floor model Whether a gap area exists (equivalent gap area (cm ² / m ² )) was evaluated by calculating a difference between the case where the upper surface of the cube was sealed with an airtight sheet and an airtight tape.

  In Example 1, the heat insulating material in which the inorganic fiber type heat insulating material was contained in the bag which has an opening was installed between joists, and the heat insulating laminated body of this invention was installed between the large draws. In Reference Example 1, the heat insulating material in which the inorganic fiber-based heat insulating material is contained in a bag having an open hole is installed between the joists and the large draw. In Comparative Example 1, a commercially available bare inorganic fiber-based heat insulating material was installed between the joists, and no heat insulating material was used between the large boots. In Comparative Example 2, the foam-based heat insulating material was installed between the joists, and no heat insulating material was used between the large boots.

The results are shown in Table 1.

  Example 1 using the heat-insulating laminate of the present invention has no significant gap area difference from the case where the upper surface of the cube is sealed with an air-tight sheet and an air-tight tape, compared with Reference Example 1 using a bag-containing heat insulating material. Airtightness was high. In Comparative Examples 1 and 2 in which no heat insulating material was used between the large draws, the airtightness was low.

DESCRIPTION OF SYMBOLS 1 Inorganic fiber type heat insulating material 1a Slit 1x 1st main surface 1y 2nd main surface 2 Skin material 2a Ear part 3 Fixed member (outline)
DESCRIPTION OF SYMBOLS 4 Fixing member 10 Heat insulating material 11 Wallpaper 12 Inner wall material 13 Moisture-proof sheet 14 Inorganic fiber type heat insulating material 15 Pillar or space pillar 16 Structural plywood 17 Breathable waterproofing sheet 18 Venting trunk edge 19 Venting layer 20 Outer wall material 21 Flooring material 22 Moisture-proof sheet 23 joist 24 jokoma inorganic fiber heat insulating material 25 large pull 26 large pull inorganic fiber heat insulating material 27 moisture permeable waterproof sheet 28 floor bundle

Claims (6)

Insulating laminate including an inorganic fiber-based heat insulating material having a first main surface and a second main surface extending in a length direction and a width direction, and a skin material that is at least partially bonded to the first main surface of the inorganic fiber-based heat insulating material Body,
The heat insulation laminated body in which the said inorganic fiber type heat insulating material has one or more slits extended substantially parallel to the length direction and / or the width direction, and can be folded by it.   The inorganic fiber-based heat insulating material has the two slits, and the two slits are located at about 1/4 of the width of the inorganic fiber-based heat insulating material from both ends in the width direction. The heat insulation laminated body of Claim 1 which is located in.   The skin material has a width longer than the width of the inorganic fiber-based heat insulating material, and the skin material has an ear portion extending from at least the width direction of the inorganic fiber-based heat insulating material. The thermal insulation laminate according to claim 2, wherein the ear portion enables the insulation laminate to be fastened to a fixed place. The heat insulation laminated body of Claim 3 in which the said inorganic fiber type heat insulating material has a density of 20 kg / m < ³ > or more. Construction method of heat insulation laminate including the following steps:
The process of folding the heat insulation laminated body as described in any one of Claims 1-4, and conveying to the construction location vicinity;
A step of deploying the conveyed thermal insulation laminate near the construction site; and a step of fixing the deployed thermal insulation laminate to the construction site. A method of constructing a heat-insulating laminate between large underlays of an existing building including the following steps:
Fold the heat insulation laminate according to any one of the preceding claims 1 to 4 and carry it from the underfloor inspection port of 700 mm or less x 700 mm or less to the floor where the height from the ground to the lower part of the overdrawing is 250 to 600 mm. Process;
A step of expanding the heat-insulated laminate that is folded and carried under the floor; and a step of installing the expanded heat-insulating laminate in a large draw and fastening the ear portion of the skin material of the heat-insulated laminate to a large draw,
Here, the inorganic fiber-based heat insulating material has a width of 700 mm to 2000 mm, a length of 700 mm to 2000 mm, and a thickness of 30 mm to 120 mm, and the skin material is a moisture-permeable waterproof sheet, and It has a width longer than the width of the inorganic fiber-based heat insulating material, thereby having an ear portion of 70 mm to 130 mm.

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