E - Fixed Constructions – 04 – D
Patent
E - Fixed Constructions
04
D
26/184, 20/88, 1
E04D 11/02 (2006.01) B32B 5/18 (2006.01) E04D 13/15 (2006.01)
Patent
CA 1047219
ABSTRACT OF THE DISCLOSURE A roofing system and construction wherein a water proof membrane con- sisting of an impervious base sheet being applied directly to the surface of a roof deck. The waterproof membrane is a heavy duty material having a high strength heat resistant mesh throughout and integral in the membrane. This base sheet membrane has a bottom surface of self- adhesive rubberized material and, upon application of the base sheet membrane to the roof deck, results in a permanent bond between the roof deck and the base sheet membrane. An insulation layer of sprayed insula- ting foam is applied directly to the top of the base sheet membrane and the chemical composition of the spray foam and the chemical composition of the base sheet upper surface further provides for a permanent and continuing bond therebetween upon the application of said insulating foam. The foam thickness is determined by the specified installation demands for the roof system design. The foam spray insulation provides a substantially seamless insulating layer throughout the roof system. The top surface of the insulating foam has thereupon applied a weather protective coating and seal such as a hydrocide elastomer, which elastomer is sprayed or brushed on to form a continuous and seamless coating exposed to and protecting the roof system from the weather and external conditions. The present invention permits application of the base sheet mem- brane about cut-through stacks and projections of a rood simultaneously with the installation of the roof system in a manner providing a complete water and weather seal about said cut-through and projections in a roof system. The method of application for this roof system at a roof edge results in a seal of the base sheet membrane and positioning of insulation spray foam material in place on a continuous base for the roof and provides an effec- tive seal after application of a rubberized or vinyl elastomer coating thereon. - 0 -
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