Fire-resistant multi-layer membrane
A multi-layer membrane with fire-resistant properties having improved thermal stability and shelf-life is provided. The multi-layer membrane 10 has at least a water resistant polymeric layer 12 bonded to a fire resistant component 13. The fire resistant component 13 has a first fire retardant coating 16 bonded to a carrier layer 14. The fire resistant component may further include a second fire retardant coating 28 bonded to a surface of the carrier layer opposite to the first fire retardant coating. The first and second fire retardant coatings comprise a filler 24, 30 mixed with a carrier 26, 32. The membrane may include a back bonding layer 36 bonded to the bottommost layer thereof to adhesively secure to a structural support structure such as a roof. A release liner 42 may be releasably secured to the back bonding layer. Additional layers may be included to provide for further support and/or additional functional properties to the membrane.
1. A membrane
comprising: a laminate,
wherein the laminate comprises:
a polymeric layer;
a reinforcement layer;
a first bonding layer;
a fire resistant layer; and
a second bonding layer;
wherein the first bonding layer bonds the reinforcement layer to the fire resistant layer;
wherein the reinforcement layer is located between the polymeric layer and the fire resistant layer;
wherein the fire resistant layer is located between the reinforcement layer and the second bonding layer;
wherein the second bonding layer is configured to directly bond the membrane to a structural support member.
2. The membrane of claim 1 , wherein the reinforcement layer directly contacts the polymeric layer.
3. The membrane of claim 1 , wherein the fire resistant layer directly contacts the reinforcement layer.
4. The membrane of claim 1 , wherein the second bonding layer directly contacts the fire resistant layer.
5. The membrane of claim 1 , wherein the polymeric layer comprises at least one of polypropylene, polyethylene, ethylene vinyl acetate polymer, acrylic polymer, or any combination thereof.
6. The membrane of claim 5 , wherein the polymeric layer further comprises at least one of an organic filler, an inorganic filler, a colorant, an ultraviolet light absorber, a dye, a pigment, or any combination thereof.
7. The membrane of claim 1 , wherein the reinforcement layer comprises at least one of a woven scrim, a woven mat, a non-woven scrim, a non-woven mat, a fiberglass, a polyolefin, a polyester, or any combination thereof.
8. The membrane of claim 1 , wherein the second bonding layer comprises at least one of a butyl rubber, a rubber-modified asphalt, or any combination thereof.
9. The membrane of claim 1 , further comprising a release liner covering the second bonding layer.