Roofing elements

Static structures (e.g. – buildings) – Lapped multiplanar surfacing; e.g. – shingle type – Interfitted sections

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Details

523023, 52604, E04D 100

Patent

active

054903602

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.

REFERENCES:
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patent: 4821483 (1989-04-01), Adams
patent: 4899514 (1990-02-01), Brookhart, Jr.
patent: 5133620 (1992-07-01), Scheiwiller
Roofblok.TM. Engineered Ballast Systems, "Roofblok 1600 Series Ballast Paver System Product Data," (1981).
"Standard Specification for Solid Concrete Interlocking Paving Units," American Society for Testing and Materials, Annual Book of ASTM Standards, (Mar. 1982).

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