发明名称 ROOFING MEMBERS HAVING IMPROVED DIMENSIONAL STABILITY AND RELATED METHODS
摘要 A method of reroofing a roof comprises applying laminated recovery boards of the present invention to a roof deck; and, applying a weather protective layer over the recovery boards. The laminated recovery boards comprise foam core (11) selected from the group consisting of polyisocyanurate and polyurethane materials and mixtures thereof; and first and second facers (12, 13), between which the foam core is sandwiched, the facers comprising a polymer sheet containing a reinforcing material selected from the group consisting of glass strands, glass fibers, and mixtures thereof, wherein the polymer sheet is selected from the group consisting of polypropylene and polymer latexes; and, applying a weather protective layer over the laminated recovery boards.
申请公布号 CA2216026(A1) 申请公布日期 1998.03.23
申请号 CA19972216026 申请日期 1997.09.22
申请人 BRIDGESTONE/FIRESTONE, INC.;BRIDGESTONE/FIRESTONE, INC. 发明人 LETTS, JOHN B.
分类号 E04D1/22;(IPC1-7):E04D1/22 主分类号 E04D1/22
代理机构 代理人
主权项
地址