Roofing elements
AssigneeOldcastle, Inc.
InventorsJohn A. Fifield, Paul V. Childress
Life of this patent
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Abstract
Roofing elements, particularly suitable for use on flat roof constructions, are provided with co-operating means on each of at least one pair of opposite side edges for co-operation with at least two adjacent elements on each of the side edges. When assembled, movement of any one element involves movement of at least one co-operating element on each of the opposite sides edges. Such bidirectional co-operation results in an interlocked roof construction wherein the uplifting of individual roofing elements by the action of the wind or other forces is substantially eliminated. Uplift pressure caused by wind passing over the roof surface can be further reduced by providing communicating air-flow passages between co-operating elements.
Claims9
A roofing element comprising an upper surface and at least two pairs of oppositely facing side edges of which at least one pair of side edges is provided with co-operating members, each of which is adapted to cooperate with at least two further such roofing elements of which each is disposed adjacent one of said opposite side edges of said one pair, said co-operating members and each of said roofing elements being adapted to be so disposed in relation to one another that movement of one of said roofing elements would necessarily involve movement of at least two of said oppositely adjacent roofing elements, and at least one spacer member extending laterally from at least one of said side edges adapted for spacing said roofing element from an adjacent roofing element, said at least one spacer member being adapted to create an air-flow passage which is adapted to communicate between co-operating roofing elements and which is adapted to space edges of said upper surfaces from adjacent roofing elements along said at least one side edge from which said at least one spacer member extends.
Dependencies are inferred from the claim text.