发明名称 ROOFING MATERIAL AND METHOD OF MAKING THE SAME
摘要 A roofing material comprising an upper surface and a lower surface, wherein the upper surface includes reduced-particle size granules and may further include a reduced-thickness face coating. The thickness of the upper surface is related to the particle size of the granules deposed on the face coating. A smaller particle size granule than those used in traditional roofing shingles is utilized in the upper surface which may allow for a reduced-thickness face coating while not sacrificing the retention of the granules on the surface of the roofing material or desired physical characteristics. The face coating may include a reduced amount of filler material, such as mineral fillers, than face coatings of traditional roofing materials.
申请公布号 CA2709653(A1) 申请公布日期 2011.07.29
申请号 CA20102709653 申请日期 2010.07.13
申请人 BUILDING MATERIALS INVESTMENT CORP. 发明人 RODRIGUES, TOMMY F.;RAILKAR, SUDHIR B.;CHICH, ADEM;KIIK, MATTI
分类号 E04D5/12;E04D1/12;E04F13/08 主分类号 E04D5/12
代理机构 代理人
主权项
地址