IP Library › Patent Application 18179222
Patent Application
App. No. 18/179,222

FIRE RESISTANT NON-BREATHABLE ROOFING UNDERLAYMENT

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Quick Facts
Patent No.
US None
App. No.
18/179,222
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.

Claims (21)

1 . A multilayered roofing underlayment comprising:

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) wherein a product weight of said roofing underlayment is from 90 to 270 grams per square meter.

2 . The multilayered roofing underlayment as in claim 1 , wherein said first layer of nonwoven material has a product weight from 10 to 50 grams per square meter.

3 . The multilayered roofing underlayment as in claim 1 , wherein said third layer of aluminum foil has a thickness from 5 microns to 15 microns.

4 . The multilayered roofing underlayment as in claim 1 , further comprising a top side, wherein said top side has a coefficient of friction of 0.4 to 1.4.

5 . The multilayered roofing underlayment as in claim 1 , further comprising a back side, wherein said back side has a coefficient of friction of 0.4 to 0.99.

6 . The multilayered roofing underlayment as in claim 1 , wherein said second layer of lamination coating is composed of one or more specialty polymers selected from a group consisting of: propylene elastomer, ethyl methyl acrylate, ethyl vinyl acetate, and thermoplastic polyolefin.

7 . The multilayered roofing underlayment as in claim 1 , wherein said fourth layer of laminating coating is composed of one or more specialty polymers selected from a group consisting of: propylene elastomer, ethyl methyl acrylate, ethyl vinyl acetate, and thermoplastic polyolefin.

8 . The multilayered roofing underlayment as in claim 1 , wherein said sixth layer of backside coating is composed of one or more specialty polymers selected from a group consisting of: propylene elastomer, ethyl methyl acrylate, ethyl vinyl acetate, and thermoplastic polyolefin.

9 . The multilayered roofing underlayment as in claim 2 , wherein said third layer of aluminum foil has a thickness from 5 microns to 15 microns.

10 . The multilayered roofing underlayment as in claim 9 , further comprising a top side, wherein said top side has a coefficient of friction of 0.4 to 1.4.

11 . The multilayered roofing underlayment as in claim 10 , further comprising a back side, wherein said back side has a coefficient of friction of 0.4 to 0.99.

12 . The multilayered roofing underlayment as in claim 11 , wherein said second layer of lamination coating is composed of one or more specialty polymers selected from a group consisting of: propylene elastomer, ethyl methyl acrylate, ethyl vinyl acetate, and thermoplastic polyolefin.

13 . The multilayered roofing underlayment as in claim 12 , wherein said fourth layer of laminating coating is composed of one or more specialty polymers selected from a group consisting of: propylene elastomer, ethyl methyl acrylate, ethyl vinyl acetate, and thermoplastic polyolefin.

14 . The multilayered roofing underlayment as in claim 13 , wherein said sixth layer of backside coating is composed of one or more specialty polymers selected from a group consisting of: propylene elastomer, ethyl methyl acrylate, ethyl vinyl acetate, and thermoplastic polyolefin.