| 摘要 |
The present invention relates to a vapor-permeable waterproof heat reflective insulation material based on an inorganic fiber-based insulation material (1). The vapor-permeable waterproof heat reflective insulation material can show enough vapor permeability without deterioration of vapor permeability despite consecutive heat reflective layers (31, 32) by having excellent insulation, incombustibility, vapor-permeable waterproofing, constructability, and durability which are not included in the existing heat reflective insulation material, allow the heat reflective layer (31) to protect against large water drop, and allow a vapor-permeable waterproof film (4) under the heat reflective layer (31) to perfectly protect against small water drop although a pressure makes the small rainwater to pass through the heat reflective layer (31). The vapor-permeable waterproof heat reflective insulation material allows external or internal moist to freely pass therethrough, so both surfaces of the entire insulation material have both heat reflective function and perfect vapor-permeable waterproof function. Also, adhesive used over the entire insulation material is less than or equal to 70 g/m^2, the vapor-permeable waterproof heat reflective insulation material shows perfect incombustibility in an incombustibility test. An inorganic fiber-based insulation material (1) in the center can highly block the conducted heat, highly insulates the radiant heat through high reflectance and low radiation factor, can prevent an insulation in a building structure from being deteriorated due to the deterioration of vapor-permeable waterproofing during using a building after construction or prevent a structure from being spoiled due to dew condensation by largely improving durability of vapor-permeable waterproof film, can be easily constructed by having high internal tearing strength and tensile strength, and can have excellent constructability and durability not to be damaged during construction. |
