A horizontal roof deck assembly has a ribbed steel roof deck sufficiently strong to withstand specified gravity, uplift, and shear loads. Rigid substrate boards are positioned adjacent one another above the deck, defining end and side joints. End joints are parallel to and above a corresponding upper rib of the roof deck and are secured to the upper rib by compression disk fasteners spaced along the end joint. The side joints can be tongue and groove joints. Additional fasteners attach the substrate boards to the roof deck along the side joints, for wind uplift resistance, and for thermal movement resistance.
E04D 3/35 - Plaques ou feuilles rigides de couverture comportant plusieurs couches, p. ex. pour l’isolation
E04D 11/02 - Toits composites, c.-à-d. consistant en plusieurs couches liaisonnées sur place, l’une des couches au moins étant par sa composition imperméable à l’eau
E04B 7/02 - ToitsStructure des toits en ce qui concerne l'isolation avec des pentes planes, p. ex. toits en bâtière
2.
Methods of replacing compromised composite-strength concrete roofs
Retrofitting a horizontal building roof having a pre-existing, composite-strength concrete roof having a corrugated steel deck with concrete poured over the deck top. Replacing the pre-existing roof with a dry-installed composite-strength roof having a rigid sheet installed over a corrugated steel deck, the rigid sheet attached to the deck by mechanical fasteners extending through the rigid sheet and the upper ribs of the corrugated deck. The newly installed roof restrains the upper ribs against lateral distortion under loading, thus forcing the corrugated deck to maintain shape and operate to composite capacities in excess of predictable flexural load capabilities of its components considered alone.
37 - Services de construction; extraction minière; installation et réparation
Produits et services
Materials Used for the Construction and Repair of Building Roofs-Namely, Structural Combinations of Gypsum Board, Corrugated Steel, Plastic Insulating Board, and Fiber Board Construction and Repair of Building Roofs