| 摘要 |
In a roof system having exceptional insulating value, high density polyurethane foam or extruded polystyrene is used to form molded panels of predetermined size, shape and ornamental configuration. A non-skid primer coat is applied to the top surfaces and sides of the panels at the time of manufacture. A fabric layer or polyester mesh may be embedded in the bottom of the molded foam panels to enhance adhesion characteristics. During installation, the panels are set in a layer of low rise foam adhesive that is applied to the underlying roof deck or other surface (e.g., plywood, concrete, roofing felts, or spray foam), thereby avoiding the use of penetrating fasteners while enhancing wind uplift resistance. The panels may include interlocking structure for side-by-side and/or overlapping installation. Edges of the foam panels that need to be cut for fitting at valleys, hips, ridges, etc. are repaired in the field using factory supplied fabric and coating. After complete installation of the panels, a final topcoat composition such as, but not limited to, acrylic epoxy, silicon, or polyurea is applied to seal the roof system and provide a select roof color and desired grade.
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