FIRE-RATED ROOFING SYSTEM
First Claim
Patent Images
1. A fire-resistant composite comprising:
- a first layer comprising a flexible polymeric sheet; and
a second layer, the second layer comprising a first carbon fiber sheet and a second carbon fiber sheet with an inert fiber mat positioned between the first carbon fiber sheet and the second carbon fiber sheet.
1 Assignment
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Accused Products
Abstract
A fire-resistant polymeric membrane includes a polymer layer such as PVC, TPO, or EPDM affixed to a carbon fiber composite. The carbon fiber composite includes one or two layers of non-woven carbon fibers and at least one of an inert fiber mat or a metal foil layer, wherein the metal foil layer has a melting temperature of at least about 660° C. The present invention also provides an underlayment, wherein the underlayment is formed from one or more fibrous carbon layers affixed to at least one of an inert fiber mat or a metal foil having a melting temperature greater than 660° C.
11 Citations
9 Claims
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1. A fire-resistant composite comprising:
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a first layer comprising a flexible polymeric sheet; and a second layer, the second layer comprising a first carbon fiber sheet and a second carbon fiber sheet with an inert fiber mat positioned between the first carbon fiber sheet and the second carbon fiber sheet. - View Dependent Claims (2, 3, 5)
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6. A fire-resistant roofing underlayment comprising:
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at least one carbon fiber layer; and at least one of an inert fiber mat or a metal foil layer being coextensive with the carbon fiber layer, the metal foil layer having a melting temperature greater than about 660°
C.; andwherein the at least one carbon fiber layer has a basis weight of at least 3 ounces per square yard. - View Dependent Claims (7)
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8. A roof structure comprising:
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a roof deck covered with a fire-resistant composite membrane comprising; a first layer comprising a flexible polymeric sheet; and a second layer affixed to the first layer, the second layer comprising at least one carbon fiber sheet and at least one of an inert fiber mat or a metal foil, the metal foil having a melting temperature above about 660°
C. - View Dependent Claims (9)
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Specification