Composite building element and methods of making and using the s

Details Composite building element and methods of making and using the s Composite building element and methods of making and using the s

1993-08-17

1996-04-02

Canfield, Robert J.

Static structures (e.g., buildings)

With synthetic resinous component

Foam

523098, 5230911, 5230917, 52560, 52519, 52534, 52536, 525914, E04D 100

Patent

active

055029400

ABSTRACT:
A composite roofing element comprises a first layer of aggregate based material, a second layer of material having a density less than that of the first layer and has a wedge shaped region depending from its underside. The wedge shaped region is preferably integral with the second layer which can be made of an expanded polymer, expanded polystyrene being particularly suitable. Overlapping structure on the side edges and a recess in the thick end of the wedge enable adjacent elements to interlock with each other. By using such lightweight roofing elements the requirement for a substantial load bearing supporting structure is reduced.

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