Fire-rated structural osb panels with overlaid water-resistant barrier
OwnerScott Johnson, Brian St. Germaininventors
Life of this patent
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Abstract
A wood or engineered wood structural panel, such as, but not limited to, OSB (“oriented strand board”) or plywood, that is both fire-resistant and water resistant. The panel is factory-coated with a product that provides fire resistance. The treatment gives it a Fire-Resistant (FR) performance (for use in a one- or two-hour rated assembly). The panel also is overlaid or coated in a factory setting with a weather/water resistive barrier (WRB). The structural panel thus combines a fire-resistant structural sheathing and WRB product in one integrated panel produced at a factory prior for installation at a job site.
Claims12
A fire-resistant structural panel, comprising:
- a base layer with a first surface and a second surface;
- at least one water-resistant layer substantially coating the first surface;
- and
- at least one fire-resistant layer substantially coating the second surface, the at least one fire-resistant layer comprising non-combustible magnesium oxide, the magnesium oxide layer applied as a coating of slurry to substantially cover the second surface;
- wherein the base layer, the at least one fire-resistant layer, and the at least one water-resistant layer form are pre-formed and then cured into an integral panel.
A fire-resistant structural panel, comprising:
- a base layer with a first surface and a second surface;
- at least one fire-resistant layer substantially coating the first surface or second surface, the at least one fire-resistant layer comprising non-combustible magnesium oxide applied as a coating of slurry to substantially cover the first surface or second surface;
- and
- at least one water-resistant layer substantially coating the at least one fire-resistant layer;
- wherein the base layer, the at least one-fire resistant layer, and the at least one water-resistant layer form are pre-formed and then cured into an integral panel.
Dependencies are inferred from the claim text.