Cementitious exterior sheathing product with rigid support member
First Claim
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1. An exterior sheathing product comprising:
- a board of fiber cement material attached to a first wall and a second wall of a support member;
the support member having a first nailing flange and fastener receiving holes through the first nailing flange;
the support member having a second nailing flange and further fastener receiving holes through the second nailing flange, wherein the first wall and the second wall are between the first nailing flange and the second nailing flange, and wherein the board is attached to and covers the first wall and the second wall, while the fastener receiving holes and the further fastener receiving holes are uncovered by the board to receive fasteners;
a cementitious bond promoter disposed on an exterior-facing side of said support member;
the board of fiber cement material including a multilayered sheet; and
an interlaminar bond strength promoter for adhesion between layers of the multilayered sheet.
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Abstract
Cementitious exterior sheathing products are provided which include a rigid support member affixed to a cementitious layer. The rigid support member includes at least one nailing flange disposed along one of its lateral sides for allowing the sheathing product to be affixed to an exterior wall of a building. Preferred mechanical and adhesive bonding techniques are suggested for combining the cementitious layer and rigid support member together to form an integrated product. Such products are lighter in weight and are more crack resistant than currently available fiber cement trim boards.
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Citations
13 Claims
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1. An exterior sheathing product comprising:
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a board of fiber cement material attached to a first wall and a second wall of a support member; the support member having a first nailing flange and fastener receiving holes through the first nailing flange; the support member having a second nailing flange and further fastener receiving holes through the second nailing flange, wherein the first wall and the second wall are between the first nailing flange and the second nailing flange, and wherein the board is attached to and covers the first wall and the second wall, while the fastener receiving holes and the further fastener receiving holes are uncovered by the board to receive fasteners; a cementitious bond promoter disposed on an exterior-facing side of said support member; the board of fiber cement material including a multilayered sheet; and an interlaminar bond strength promoter for adhesion between layers of the multilayered sheet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification