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US 11,649,628 B2Granted
Area separation firewall system
AssigneeEagle Materials IP LLC
InventorRobert Ek
Life of this patent
Estimating the term…
Abstract
A firewall includes wallboard arranged in three or more layers. The wallboard may include gypsum, fiber glass, and/or vermiculite. The firewall may be reinforced with fasteners, such as laminating screws, affixing the layers of wallboard to one another. The firewall may be incorporated into an area separation wall such that the area separation wall satisfies the standards of ASTM E119 or UL 263.
Claims16
A firewall comprising:
- three or more consecutive layers of wallboard, and
- a plurality of fasteners affixing the three or more layers of the wallboard to one another;
- wherein each layer of the wallboard comprises gypsum;
- wherein each layer of the wallboard comprises a moisture resistant covering on an exterior surface thereof;
- wherein at least one fastener of the plurality of fasteners is spaced at least 6″ from horizontal edges of the wallboard and at least 6″ from vertical edges of the wallboard;
- and
- wherein the firewall satisfies requirements for a 2-hour load bearing wall under ASTM E119 or UL 263.
4 more elements
An area separation wall comprising:
- a pair of interior walls supported on framing and spaced from one another;
- a firewall positioned within a space between the pair of interior walls, wherein the firewall comprises wallboard arranged in three or more layers and a plurality of fasteners affixing the three or more layers of the wallboard to one another, wherein each layer of the wallboard comprises gypsum, wherein each layer of the wallboard comprises a moisture resistant covering on an exterior surface thereof, and wherein at least one fastener of the plurality of fasteners is spaced at least 6″ from horizontal edges of the wallboard and at least 6″ from vertical edges of the wallboard;
- and
- clips affixing the firewall to the framing;
- wherein the area separation wall satisfies the requirements for a 2-hour load bearing wall under ASTM E119 or UL 263.
2 more elements
Dependencies are inferred from the claim text.