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US 2024/0351310 A1Published application
Fire resistant non-breathable roofing underlayment
AssigneeBmic LLC
InventorsAdem Chich, Yunwa Wilson Cheung
Life of this patent
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Abstract
A multilayered roofing underlayment including: a) a first layer of nonwoven material; b) a second layer of lamination coating adjacent to said first layer; c) a third layer of aluminum foil adjacent to said second layer; d) a fourth layer of lamination coating adjacent to said third layer; e) a fifth layer of nonwoven material adjacent to said fourth layer; f) a sixth layer of backside coating adjacent to said fifth layer; and g) where a product weight of said roofing underlayment is from 90 to 270 grams per square meter.
Claims14
A method, comprising:
- obtaining an underlayment,
- wherein the underlayment comprises:
- a first layer of nonwoven material;
- a second layer of lamination coating adjacent to the first layer;
- a third layer of a substrate layer adjacent to the second layer;
- a fourth layer of polymeric lamination coating adjacent to the third layer,
- wherein the second layer and the fourth layer directly contact the third layer;
- and
- a fifth layer of nonwoven material adjacent to the fourth layer,
- wherein the underlayment is non-breathable,
- installing the underlayment on a roof structure;
- and
- installing a plurality of roofing shingles on the underlayment, thereby to form a roofing system,
- wherein the underlayment is between the roof structure and the plurality of roofing shingles, and
- wherein the roofing system, when tested in accordance with a classification for Class A roof coverings of ASTM E108, passes the test.
12 more elements
Dependencies are inferred from the claim text.