Unitary combined backer and siding board

Details Unitary combined backer and siding board Unitary combined backer and siding board

E - Fixed Constructions

04

C

20/86

E04C 2/12 (2006.01)

Patent

CA 1126926

TITLE OF THE INVENTION UNITARY COMBINED BACKER AND SIDING BOARD ABSTRACT OF THE DISCLOSURE A unitary, combined backer and siding board is sufficiently thick and strong to eliminate the need for backer boards or plyscore as a substrate on the studs of the walls of a building. The board is standard, commercially available stock with parallel front and rear faces and of uniform thickness of about one and one quarter inches. The upper edge has a front, upstanding tongue of curved cross section which fits in a tongue groove of curved cross section in the lower edge. The upper edge is free of grooving and hag a downward sloping surface between the upstanding tongue and the rear face to shed rainwater. A compress- ible sealing gasket is located between tongue and tongue groove.

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