Non-cellular adhesive for composite roof structure
AssigneeR.S. Associates, Inc.
InventorsNorm Ritland, Paul Scheafbauer, William Shackelford
Life of this patent
Estimating the term…
Abstract
A composite roof structure, and a corresponding method of fabricating the structure, are disclosed which includes use of a layer of non-cellular adhesive material (preferably a two-component non-cellular polyurea polyurethane adhesive material), roof insulation panels, along with a flexible roof membrane, preferably made of thermoplastic olefin rubber, including a rubber-like sheet having a fleece-like matting secured to the underside thereof. The non-cellular adhesive is preferably sprayed onto a roof substrate and prior to complete solidification thereof the roof membrane or roof insulation is pressed into the adhesive so that the matting becomes embedded therein.
Claims37
A composite roof structure adapted to be supported by a roof substrate and comprising:
- a layer of non-cellular solvent-free, initially low viscosity sprayable adhesive material adapted to be secured to said substrate, said adhesive material having an initial solidification time of about 5 minutes or less;
- and
- a flexible membrane including a sheet of flexible material having fleece-like matting secured to the underside thereof, said membrane being attached to said adhesive material with at least a portion of said matting being imbedded within the adhesive material.
A method for forming a composite roof structure upon a roof substrate, said composite roof structure comprising a flexible roof membrane including a flexible sheet having a fleece-like matting secured to the underside thereof, said method comprising the steps of:
- providing a solvent-free, initially low viscosity sprayable non-cellular adhesive material having an initial solidification time of about 5 minutes or less;
- spraying a layer of said solvent-free, initially low viscosity sprayable non-cellular adhesive material onto said substrate;
- after said adhesive material is sprayed, applying said flexible roof membrane thereto by placing said fleece-like matting in contact with said layer of said adhesive material prior to complete solidification thereof causing said matting to become at least partially embedded within the adhesive material;
- and
- allowing the adhesive material to solidify.
A composite roof structure adapted to be supported by a roof substrate and comprising:
- a layer of non-cellular solvent-free, initially low viscosity sprayable adhesive material adapted to be secured to said substrate, wherein said adhesive material is non-foamed, non-cellular synthetic resin adhesive material;
- and
- a flexible membrane including a sheet of flexible material having fleece-like matting secured to the underside thereof, said membrane being attached to said adhesive material with at least a portion of said matting being imbedded within the adhesive material.
Dependencies are inferred from the claim text.