THERMAL BARRIER WATERPROOF SHEET FOR BUILDING MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a lightweight thermal barrier waterproof sheet for a building material which can maintain excellent needle-hole sealing performance and can sufficiently resist water even after going through a severe environmental condition, and which is also excellent in thermal-barrier performance. SOLUTION: The thermal barrier waterproof sheet 1 for the building material is provided with: a nonslip layer 2; a surface aluminum foil 3 is bonded to the undersurface of the nonslip layer 2; an aluminum foil reinforcing nonwoven fabric layer 4 is bonded to the undersurface of the surface aluminum foil 3; an intermediate nonwoven fabric layer 6 including a swelling layer 5 is bonded to the undersurface of the aluminum foil reinforcing nonwoven fabric layer 4; a polyolefin film layer 7 having water resistance is bonded to the undersurface of the intermediate nonwoven fabric layer 6; and the base nonwoven fabric layer 8 is bonded to the undersurface of the polyolefin film layer 7. It is desirable that the swelling layer 5 contains a water-absorbing polymer. COPYRIGHT: (C)2010,JPO&INPIT