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US 12,247,399 B2Granted
Fire-resistant roof system and membrane composite
AssigneeHolcim Technology Ltd
InventorsWensheng Zhou, Michael J. Hubbard, Allen Sopko, Joseph Carr
Life of this patent
Estimating the term…
Abstract
A roof assembly comprising: a roof deck; a thermoplastic membrane covering the deck; and a fabric having disposed thereon expandable graphite.
Claims9
A membrane composite comprising:
- (a) a thermoplastic membrane having first and second planar surfaces, where said thermoplastic membrane includes a first thermoplastic layer and a second thermoplastic layer with a reinforcing scrim located between said first thermoplastic layer and said second thermoplastic layer;
- and
- (b) a fabric secured through heat welding to at least a portion of the second planar surface of the membrane, where the fabric includes first and second surfaces, where the first planar surface of the fabric is attached to the second planar surface of the membrane, where the second planar surface of the fabric has a coating composition disposed thereon, where the coating composition includes expandable graphite dispersed within a binder.
Dependencies are inferred from the claim text.