WO2016031236A1 - Matériau de sous-couche de toiture de protection thermique - Google Patents

Matériau de sous-couche de toiture de protection thermique Download PDF

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Publication number
WO2016031236A1
WO2016031236A1 PCT/JP2015/004274 JP2015004274W WO2016031236A1 WO 2016031236 A1 WO2016031236 A1 WO 2016031236A1 JP 2015004274 W JP2015004274 W JP 2015004274W WO 2016031236 A1 WO2016031236 A1 WO 2016031236A1
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heat
layer
film layer
metal film
infrared
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PCT/JP2015/004274
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English (en)
Japanese (ja)
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雅貴 出口
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セーレン株式会社
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Priority to JP2016544962A priority Critical patent/JP6691867B2/ja
Publication of WO2016031236A1 publication Critical patent/WO2016031236A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/027—Thermal properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D12/00—Non-structural supports for roofing materials, e.g. battens, boards

Definitions

  • the present invention relates to a heat-insulating roof underlaying material, and more particularly, to a heat-insulating roof underlaying material excellent in heat shielding properties, slip resistance, waterproofness, and durability.
  • roofing materials are used for the roofs of houses.
  • the roof underfloor material prevents rainwater from entering indoors by constructing it under a roof material such as a tile, a slate, or a sheet metal.
  • the surface has anti-slip properties in consideration of safety when the worker walks on the roof covering material.
  • Asphalt felt is a roofing material made of nonwoven fabric or paper impregnated with asphalt.
  • a roof underlaying material that is lighter than asphalt and excellent in workability, a roof underlaying material obtained by laminating lightweight synthetic resins and fabrics has been proposed.
  • Patent Document 1 discloses a heat shield roof covering material in which an aluminum foil or an aluminum vapor deposition film as a metal film layer is laminated on a surface layer of a resin sheet provided with protrusions in a dispersed manner.
  • Patent Document 2 discloses a heat insulating roof base material having a metal film layer on one surface of a fabric and a moisture permeable waterproof film laminated on the other surface of the fabric.
  • Patent Document 3 discloses a waterproof sheet for a thermal insulation roof provided with a thermal insulation layer obtained by adding a titanium oxide powder having thermal insulation properties to a foamable resin.
  • the present invention solves the above-mentioned problems, has sufficient heat shielding properties, satisfies the slip resistance and waterproof properties required as the performance of roofing roofing materials, and has durability that can withstand long-term construction.
  • Another object is to provide a heat-insulating roof underlaying material that also serves as a base.
  • the uppermost outermost layer in the vertical direction is a metal film layer containing a metal pigment, a binder, and particles, and the heat shielding roof covering material having at least a reinforcing layer and a waterproof layer under the metal film layer.
  • the metal film layer has an average infrared reflectance of 60% or more in a wavelength region of 5 to 10 ⁇ m and an infrared average absorptance in a wavelength region of 5 to 10 ⁇ m of 30% or less. It is a thermal roof underglazing material.
  • the shape of the metal pigment is preferably scaly.
  • the surface of the metal pigment is preferably subjected to at least one treatment selected from an organic coating treatment, an inorganic coating treatment, an oxide coating treatment, and a hydroxide coating treatment.
  • the said particle body is comprised by the at least 1 sort (s) of particle body selected from inorganic type powder or a thermally expansible microcapsule.
  • the average infrared transmittance of the binder in the wavelength region of 5 to 10 ⁇ m is 80% or more.
  • the present invention there is an effect that it has sufficient heat shielding properties, has anti-slip properties and waterproof properties required as the performance of the roof underlaying material, and also has durability that can withstand long-term construction.
  • the heat-insulating roof underlaying material 1 of the present invention is a laminate in which a waterproof layer 6 and a reinforcing layer 7 are sequentially provided under a metal film layer 5 composed of a metal pigment 2, a binder 3, and a particle body 4.
  • the uppermost outermost layer in the vertical direction is the metal film layer 5 in which the metal pigment 2 and the particle body 4 are mixed in the binder 3, and the metal film layer 5 has a wavelength of 5 to 10 ⁇ m.
  • the average infrared reflectance is 60% or more and the average infrared absorption is 30% or less. If the average infrared reflectance is less than 60%, infrared rays cannot be sufficiently reflected, and sufficient heat shielding properties cannot be obtained. When the average infrared absorption rate exceeds 30%, heat is accumulated by absorption in the metal film layer, thereby hindering heat insulation.
  • the infrared average absorptance is calculated by the following calculation formula from the result of measuring the infrared average reflectance and the infrared average transmittance with a Fourier transform infrared spectrophotometer.
  • Infrared average absorption rate [%] 100 [%]-(Infrared average reflectance [%] + Infrared average transmittance [%])
  • the metal film layer 5 includes the metal pigment 2 mixed in the binder 3, so that the binder 3 becomes a protective film, prevents the metal pigment 2 from corroding, and improves the durability of the heat shield roof covering material. Can be improved.
  • the metal film layer 5 preferably has an infrared reflection retention in a wavelength region of 5 to 10 ⁇ m of 40% or more. More preferably, it is 60% or more. Further, it is particularly preferably 80% or more. When the infrared reflection retention is 40% or more, the heat shielding property can be maintained even when the construction is performed for a long time.
  • the thermal insulation roof underglazing material 1 is subjected to an exposure promotion treatment (JIS A 611.17.7), an acid treatment (JIS K 714.4), and an alkali treatment (JIS A 6013.7. Perform 5.2) to calculate the infrared reflection retention in each process.
  • an exposure promotion treatment JIS A 611.17.7
  • an acid treatment JIS K 714.4
  • an alkali treatment JIS A 6013.7. Perform 5.2
  • the metal pigment 2 is preferably at least one selected from the group consisting of aluminum, nickel, stainless steel, gold, silver, lead, zinc, magnesium, chromium and the like, which are metals having infrared reflectivity. Of these, aluminum is preferable from the viewpoints of economy and workability.
  • scale-like metal pigments 2 There are two types of scale-like metal pigments 2, a leafing type that tends to be in a parallel arrangement when a coating film is formed, and a non-leafing type that tends to be in a dispersed arrangement, but both are used in the embodiment of the present invention. It can.
  • the leafing type is more preferably used to increase the infrared reflectance.
  • the average particle diameter of the metal pigment 2 is preferably 2 ⁇ m to 80 ⁇ m, more preferably 4 to 40 ⁇ m. If it is 2 ⁇ m or more, there is little influence of diffuse reflection and the heat shielding property is improved. Moreover, if it is 80 micrometers or less, the dispersibility of a pigment is good and abrasion resistance improves.
  • the metal pigment 2 is preferably subjected to a surface treatment in order to obtain more excellent durability.
  • a surface treatment Specifically, an organic coating treatment with an acrylic or melamine resin, an inorganic coating treatment with silica or the like, an oxide coating treatment with phosphoric acid or molybdic acid, or a hydroxide coating treatment.
  • acrylic organic coating treatment is preferable in terms of excellent adhesion to the binder, friction resistance, and chemical resistance.
  • the added amount of the metal pigment 2 is preferably 5 to 50 parts by weight, more preferably 5 to 20 parts by weight, and further preferably 5 to 10 parts by weight with respect to 100 parts by weight of the binder 3. . If it is 5 parts by weight or more, it is easy to form a metal film and a sufficient heat shielding property can be obtained. If it is 50 parts by weight or less, the wear resistance is improved.
  • the binder 3 is not particularly limited as long as the binder 3 is a resin material that can be formed into a film and can disperse the metal pigment 2 and the particles 4.
  • the polyolefin 3, polyurethane-based, acrylic-based, and epoxy-based materials can be used.
  • a low molecular weight polyolefin as a main agent in terms of good dispersibility of the metal pigment and increased uniformity.
  • the binder 3 preferably has an average infrared transmittance of 80% or more in a wavelength region of 5 to 10 ⁇ m. If it is 80% or more, the infrared rays incident on the metal film layer can easily reach the metal pigment, and the reflected infrared rays can be easily emitted to the outside.
  • the molecular weight of the binder 3 is preferably 500 to 150,000, more preferably 8000 to 100,000, and still more preferably 10,000 to 50,000. If it is 500 or more, a film having excellent strength can be formed, and film formation is facilitated. If it is 150,000 or less, a metal pigment can be disperse
  • examples of the particle body 4 include polymer powder, inorganic powder, and thermally expandable microcapsule.
  • at least one kind of particle body is preferable, which is selected from inorganic powders and heat-expandable microcapsules from the viewpoint of further improving the anti-slip property of the surface of the roof underlaying material.
  • the inorganic powder preferably has a wedge shape such as a wedge shape, a polygonal pyramid, a cone or other wedge shape, or a puncture type three-dimensional irregular shape such as a needle shape.
  • a wedge shape such as a wedge shape, a polygonal pyramid, a cone or other wedge shape, or a puncture type three-dimensional irregular shape such as a needle shape.
  • Specific examples include silica, calcium carbonate, titanium oxide, zinc oxide, and magnesium carbonate. Of these, zinc oxide is preferred because of its good dispersibility in the binder, excellent chemical resistance, and heat dissipation.
  • the heat-expandable microcapsule is a microcapsule enclosing a gas such as hydrocarbon, and has excellent heat insulation properties, and therefore can enhance heat shielding properties.
  • the hydrocarbon encapsulated in the thermally expandable microcapsule is preferably a low boiling point hydrocarbon such as n-butane, i-butane, pentane, or neopentane.
  • examples of the material of the thermally expandable microcapsule include thermoplastic resins, and specific examples include acrylic, olefin, urethane, vinyl acetate, and silicone. Of these, acrylic is preferred because it is inexpensive and has excellent processability.
  • the average particle diameter of the thermally expandable microcapsule before foaming is preferably 5 to 50 ⁇ m.
  • the expansion ratio is preferably 2 to 20 times.
  • the foaming magnification here shows the magnification of the average particle diameter of a thermally expansible microcapsule. If it is this range, sufficient slip resistance and abrasion resistance can be obtained.
  • the particle diameter of the thermally expandable microcapsule after thermal foaming is preferably 10 to 1000 ⁇ m. If it is 10 micrometers or more, the fine unevenness
  • the addition amount of the particle body 4 is preferably 2 to 40 parts by weight with respect to 100 parts by weight of the binder 3.
  • the amount is more preferably 5 to 30 parts by weight
  • the amount is more preferably 3 to 15 parts by weight. If it is 2 parts by weight or more, it is possible to form irregularities by the particulates on the entire surface. If it is 40 parts by weight or less, dropping of the particles can be suppressed.
  • the metal film layer is formed by dispersing the metal pigment 2 and the particle body 4 in the binder 3.
  • other additives such as an antioxidant, a light stabilizer, an ultraviolet absorber, an antifungal agent, and a filler can be added as necessary as long as the object of the present invention is not impaired.
  • a solvent can be added to the metal pigment 2, the binder 3, and the particle body 4.
  • the solvent to be used include aromatic hydrocarbon-based hexane, benzene, toluene, xylene, styrene, naphthalene and the like in which the dispersibility of the metal pigment is good. Of these, toluene is preferable from the viewpoints of economy and ease of handling.
  • the metal film layer 5 For the formation of the metal film layer 5, a known coating method such as a roll coating method, a gravure coating method, or a reverse coating method is used.
  • the thickness of the metal film layer after drying is preferably 30 to 300 ⁇ m. If it is 30 ⁇ m or more, sufficient heat shielding properties and slip resistance can be obtained. Moreover, if it is 300 micrometers or less, since the resin crack of a metal film layer can be suppressed and it is further lightweight, the workability
  • the material of the waterproof layer 6 is not particularly limited as long as it is waterproof, but a resin film is preferably used.
  • Specific examples include films made of one or more materials selected from the group consisting of polyolefins, polyesters, polyamides, and polyurethanes. Of these, polyolefin or polyester films are preferred in terms of processability, strength, dimensional stability, and hydrophobicity.
  • the waterproof layer 6 preferably has a tensile strength of 10 MPa or more in the length direction and 10 MPa or more in the width direction. As long as this strength is satisfied, tearing during work can be reduced.
  • the waterproof layer 6 preferably has a thickness in the range of 20 to 200 ⁇ m. If it is 20 ⁇ m or more, sufficient strength can be obtained, and if it is 200 ⁇ m or less, it is lightweight and excellent in flexibility, so that workability is improved.
  • the manufacturing method of the waterproof layer 6 is not particularly limited, and can be manufactured by a known manufacturing method such as an inflation method, a T-die method, or a casting method.
  • the waterproof layer 6 is preferably subjected to surface modification such as ultraviolet treatment, plasma treatment, corona treatment, etc., in order to improve adhesion with adjacent layers.
  • the reinforcing layer 7 is not particularly limited as long as it can reinforce and support the waterproof layer 6, and specific examples thereof include a nonwoven fabric, a woven fabric, a knitted fabric, and a film. Among these, a nonwoven fabric is preferable because it is inexpensive and has excellent productivity.
  • the reinforcing layer 7 preferably has a tensile strength of 25 N / cm or more in the length direction, 20 N / cm or more in the width direction, and a tear strength of 10 N or more in the length direction and 8 N or more in the width direction. If this strength is satisfied, tearing and tearing during work can be reduced.
  • the basis weight of the reinforcing layer 7 is preferably 60 to 300 g / m 2 . If it is 60 g / m 2 or more, sufficient strength can be obtained. Moreover, since it is lightweight if it is 300 g / m ⁇ 2 > or less, the workability
  • the material of the reinforcing layer 7 is not particularly limited, and specifically, from the group consisting of polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polymethylene terephthalate, and polyamides such as nylon and aramid. It is mentioned that it is a polymer material consisting of at least one selected material. Of these, polyesters and polyolefins are preferred in terms of excellent processability, strength, dimensional stability, and hydrophobicity.
  • the heat-insulating roof underlaying material 1 of the present invention may be appropriately laminated with a water-stopping layer, an adhesive layer, an anti-slip layer, a reinforcing layer, a waterproof layer and the like as necessary. Moreover, you may laminate
  • a waterproof layer 6, a water blocking layer 8, a reinforcing layer 7, and a waterproof layer 6 are provided in this order under the metal film layer 5 composed of the metal pigment 2, the binder 3, and the particle body 4.
  • the laminated body is shown in FIG.
  • a water-absorbing resin is preferably used, and is a layer provided for the purpose of preventing moisture from entering from a nail hole or the like, not particularly limited, polyvinyl alcohol-based polyvinyl alcohol cross-linked polymer, etc.
  • Other addition polymers such as acrylic polyacrylate cross-linked products, sodium acrylate-vinyl alcohol copolymer, polyether-based polyethylene glycol diacrylate cross-linked polymers, maleic anhydride polymers, vinyl Pyrrolidone polymers and other condensation resins can be used.
  • a laminate in which a waterproof layer 6, a reinforcing layer 7, and an adhesive layer 9 are provided in this order under a metal film layer 5 composed of a metal pigment 2, a binder 3, and a particle body 4 is shown in FIG. Shown in By laminating as in this embodiment, adhesiveness is exhibited, workability is improved, and further, the roof underlaying material can reduce sliding from a field board after the construction.
  • Examples of the adhesive layer 9 include solvent-based resins such as polyolefin-based, polyacryl-based, polyurethane-based, polyester-based, and silicone-based materials, natural rubber-based materials, and synthetic rubber-based materials. Among these, a synthetic rubber that is less affected by temperature and hardly affected by the polarity of the adherend is preferably used.
  • the heat shielding roof covering material 1 preferably has a total weight of 100 to 500 g / m 2 . If it is 100 g / m 2 or more, it is difficult to be affected by wind during construction. Moreover, since it is lightweight if it is 500 g / m ⁇ 2 > or less, the workability
  • the total thickness of the heat insulating roof underlaying material 1 is 300 to 1000 ⁇ m. If it is 300 micrometers or more, the tearing and tearing during work can be reduced. Moreover, if it is 1000 micrometers or less, a softness
  • the thermal insulation roof underlay material 1 has a tensile strength of 60 N / cm or more in the length direction, 40 N / cm or more in the width direction, and a tear strength of 10 N or more in the length direction and 10 N or more in the width direction. If this strength is satisfied, tearing and tearing during work can be reduced.
  • the heat insulating roof underlaying material 1 has a water pressure resistance of 30 kPa or more. If it is 30 kPa or more, even if rainwater or the like falls on the surface, moisture can be prevented from entering the inside.
  • the heat shielding roof underlaying material of the present invention will be specifically described with reference to the following examples and comparative examples, but the present invention is not limited thereto.
  • the roof underglazing materials of Examples 1 to 7 according to the present invention were manufactured, and their physical properties were measured.
  • the roof underglazing materials of Comparative Examples 1 to 4 were manufactured or obtained, and their physical properties were measured. Each physical property in Examples and Comparative Examples was measured by the following methods.
  • Particle diameter of metal pigment and particle body The particle diameter and particle body of the metal pigment were measured according to JIS K 5600-9-3. When the particle body was a thermally expandable microcapsule, the thermally expandable microcapsule before thermal expansion was measured. Specifically, the particle size distribution was measured using a laser diffraction particle size distribution analyzer SALD-3100 manufactured by Shimadzu Corporation. The volume-based median diameter (D 50 ) was calculated and determined. These results are not shown in the table.
  • (2) Infrared average reflectance The metal film layer 5 of each roof underlaying material was evaluated by infrared average reflectance, and those having an average of 60% or more in the wavelength range of 5 to 10 ⁇ m were judged to have heat shielding properties.
  • the infrared average reflectance was measured using a Fourier transform infrared spectrophotometer ((FT-IR), IR Prestige-21 manufactured by Shimadzu Corporation).
  • FT-IR Fourier transform infrared spectrophotometer
  • IR Prestige-21 manufactured by Shimadzu Corporation
  • (3) Infrared average absorptivity The metal film layer 5 of each underfloor roofing material was evaluated by the average infrared absorptivity, and an average of 30% or less was judged to have a heat shielding property in a wavelength region of 5 to 10 ⁇ m.
  • Infrared average absorptance is calculated by the above-mentioned formula by measuring the infrared average reflectance and the infrared average transmittance using a Fourier transform infrared spectrophotometer ((FT-IR) IR Prestige-21 manufactured by Shimadzu Corporation). did.
  • the binder 3 of each roofing roof material was evaluated with the average infrared transmittance.
  • a resin used as the binder 3 with a thickness of 80 ⁇ m is prepared, and using a Fourier transform infrared spectrophotometer ((FT-IR) Shimadzu Corporation IR Prestige-21), Infrared average transmittance was measured. It was judged that an average of 80% or more in the wavelength range of 5 to 10 ⁇ m had no influence on the heat shielding property of the metal pigment.
  • FT-IR Fourier transform infrared spectrophotometer
  • Temperature difference [° C] backside temperature of asphalt roofing 940 [° C]-backside temperature of each roofing material [° C]
  • Anti-slip property 6-gradient (angle 30.9638 °) roof model is prepared, and each roof underlaying material on the base plate surface After pasting, we confirmed the sliding condition when walking on the surface of the roof under the roof.
  • ⁇ Slightly slip, but can walk safely.
  • the reinforcing layer 7 is a polyester nonwoven fabric (100 g / m 2 spunbond, manufactured by Shinryo Co., Ltd.), the adhesive layer is a polyethylene resin (Perosen 212, manufactured by Tosoh Corporation), 40 ⁇ m, and the waterproof layer 6 is a polyethylene film ( Sakai Chemical Industry Co., Ltd., 60 ⁇ m) was laminated.
  • binder 3 polyolefin-based resin, UPRY P-3963, Sakai Chemical Industries, Ltd., infrared average transmittance 88%, molecular weight 17814
  • metal pigment 2 (acrylic organic coating).
  • Example 2 After forming the reinforcing layer 7, the adhesive layer, the waterproof layer 6, and the metal film layer 5 in the same manner as in Example 1, the polyester nonwoven fabric (100 g / m 2 spunbond, manufactured by Shinryo Co., Ltd.) that is the reinforcing layer 7 is vertical. On the lower surface, a pressure-sensitive adhesive layer 9 (synthetic rubber-based adhesive, G207K, manufactured by Furuto Kogyo Co., Ltd.) is coated to a thickness of 100 ⁇ m by a calendar coating method, and the thermal barrier roof base material 1 as shown in FIG. Got. The evaluation results are shown in Table 1.
  • Example 3 A polyacrylate cross-linked product (WP-manufactured by Nikka Chemical Co., Ltd.) is formed on the surface on the vertical upper side of the polyester nonwoven fabric (100 g / m 2 spun bond, manufactured by Shinryo Co., Ltd.) as the reinforcing layer 7. 01, water absorption swelling ratio 400 times) with a gravure coater so that the solid content is 15 g / m 2 , and then a polyethylene resin as a waterproof layer 6 on the surface opposite to the surface on which the water blocking layer 8 is formed.
  • WP-manufactured by Nikka Chemical Co., Ltd. is formed on the surface on the vertical upper side of the polyester nonwoven fabric (100 g / m 2 spun bond, manufactured by Shinryo Co., Ltd.) as the reinforcing layer 7. 01, water absorption swelling ratio 400 times
  • Example 4 Except that the metallic pigment 2 was changed from scale-like to powdery aluminum (91-2323T, manufactured by Toyo Aluminum Co., Ltd.), the heat-shielding roof base material 1 was obtained in the same manner as in Example 3. The evaluation results are shown in Table 1.
  • Example 5 Except that the particle body 4 was changed to a zinc oxide filler (Panatetra WZ-0511L manufactured by Amtec Co., Ltd.), it was processed in the same manner as in Example 3 to obtain a thermal barrier roof base material 1. The evaluation results are shown in Table 1.
  • Example 6 Except for changing the binder 3 to an acrylic resin having an infrared average transmittance of 69% and a molecular weight of 199130 (manufactured by Negami Kogyo Co., Ltd., Paracron W248E), it is processed in the same manner as in Example 3 to provide a thermal barrier roof base material. 1 was obtained. The evaluation results are shown in Table 1.
  • Example 7 Except for changing the metallic pigment 2 to scaly aluminum having a particle size of 16 ⁇ m that is not surface-treated (Toyo Aluminum Co., Ltd., 7675NS), the same processing as in Example 3 was performed to obtain a heat-shielding roof base material 1. It was. The evaluation results are shown in Table 1.
  • Example 2 Aluminum is vapor-deposited on the waterproof layer 6 by a vacuum vapor deposition method so as to have a thickness of 600 mm, and 10 parts by weight of the particles 4 and 50 parts by weight of toluene as a solvent with respect to 100 parts by weight of the binder 3 thereon.
  • the heat-shielding roof base material 1 was obtained in the same manner as in Example 3 except that the added resin was coated with a gravure coater so that the thickness was 80 ⁇ m. The evaluation results are shown in Table 1.
  • Table 1 shows the evaluation results of asphalt roofing 940 (P color, manufactured by Tajima Kappa Kako Co., Ltd.) defined in JIS A6005. Since the metal film layer was not provided, “wear resistance” and “durability of metal film layer” were not evaluated.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
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Abstract

Le problème à résoudre dans le cadre de l'invention consiste à fournir un matériau de sous-couche de toiture de protection thermique qui présente des propriétés de protection thermique suffisantes et présente une résistance au glissement et une imperméabilité satisfaisantes requises en tant que propriétés des matériaux de sous-couche de toiture, et, de plus, présente une excellente durabilité de telle sorte que le matériau de sous-couche de toiture soit durable pour une construction à long terme. La solution consiste en un matériau de sous-couche de toiture de protection thermique qui comporte : une couche de film métallique qui contient un pigment métallique, un liant et un élément particulaire, et qui constitue la couche supérieure la plus à l'extérieur dans une direction verticale ; et au moins une couche de renforcement et une couche imperméable à l'eau qui sont disposées en dessous de la couche de film métallique. Le matériau de sous-couche de toiture de protection thermique est caractérisé en ce que la couche de film métallique présente une réflectance infrarouge moyenne égale ou supérieure à 60 % dans la région de longueur d'onde allant de 5 à 10 μm et une absorption infrarouge moyenne égale ou inférieure à 30 % dans la région de longueur d'onde allant de 5 à 10 µm.
PCT/JP2015/004274 2014-08-27 2015-08-25 Matériau de sous-couche de toiture de protection thermique WO2016031236A1 (fr)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021055463A (ja) * 2019-10-01 2021-04-08 セーレン株式会社 屋根下葺材
JP7410266B1 (ja) 2022-12-22 2024-01-09 東洋紡エムシー株式会社 防護材料および防護衣

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WO2007145083A1 (fr) * 2006-06-16 2007-12-21 Achilles Corporation Matériau en forme de feuille de couleur sombre ayant des propriétés de réflexion de lumière dans le domaine du proche infrarouge
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JP2010100051A (ja) * 2008-09-29 2010-05-06 Dainippon Printing Co Ltd 化粧シート
JP2012066578A (ja) * 2010-08-24 2012-04-05 Aisin Chemical Co Ltd 遮熱構造物及び遮熱塗料組成物

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JP2021055463A (ja) * 2019-10-01 2021-04-08 セーレン株式会社 屋根下葺材
JP7308714B2 (ja) 2019-10-01 2023-07-14 セーレン株式会社 屋根下葺材
JP7410266B1 (ja) 2022-12-22 2024-01-09 東洋紡エムシー株式会社 防護材料および防護衣

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