Asphalt impregnated felt building materials

Details Asphalt impregnated felt building materials Asphalt impregnated felt building materials

E - Fixed Constructions

04

D

117/176, 20/73

E04D 1/00 (2006.01) D06N 5/00 (2006.01) E04D 5/02 (2006.01)

Patent

CA 1047851

Abstract The disclosure describes asphalt saturated felt building materials, optionally having a mineral filled asphalt base coating thereon, in which the asphalt saturating the felt and/or the asphalt in any mineral filled coating is a blend of 10% - 55% sulfur dispersed in the asphalt. The materials are used in the conventional manner as roofing felt, roofing shingles, and in built-up roofing, to obtain improved fire resistance.

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