Fire resistant covering system
A flexible covering product is provided comprising a foil layer having first and second major surfaces, a protective membrane adhered to the first major surface of the foil layer, and a pressure sensitive adhesive on at least a portion of the second major surface of the foil layer in a quantity sufficient to adhere a majority of the flexible covering product to a building structure. The adhesive is preferably covered prior to application to a building structure with a release liner. Methods of use of this flexible covering product are also described.
1 . A flexible covering product comprising:
a foil layer having first and second major surfaces;
a protective membrane adhered to the first major surface of the foil layer; and
a pressure sensitive adhesive on at least a portion of the second major surface of the foil layer in a quantity sufficient to adhere a majority of the flexible covering product to a building structure;
wherein the flexible covering product has sufficient internal cohesive strength as a laminate product that each layer of the flexible covering product has a peel strength between layers of at least about 2 lbs per inch; and wherein the pressure sensitive adhesive has sufficient adhesive strength that the flexible covering product has a peel strength of at least about 0.4 lbs per inch in accordance with ASTM D-903 when bonded to test grade plywood after one hour dwell time.
2 . The flexible covering product of claim 1 , wherein the flexible covering product has sufficient internal cohesive strength as a laminate product that each layer of the flexible covering product has a peel strength of at least about 4 lbs per inch.
3 . The flexible covering product of claim 1 , wherein the pressure sensitive adhesive has sufficient adhesive strength that the flexible covering product has a peel strength of at least about 2 lbs per inch in accordance with ASTM D-903 when bonded to test grade plywood after one hour dwell time.
4 . The flexible covering product of claim 1 , wherein the pressure sensitive adhesive has sufficient adhesive strength that the flexible covering product has a peel strength of at least about 4 lbs per inch in accordance with ASTM D-903 when bonded to test grade plywood after one hour dwell time.
5 . The flexible covering product of claim 1 , wherein the flexible covering product is provided in a roll form.
6 . The flexible covering product of claim 1 , further comprising a release liner on the pressure sensitive adhesive.
7 . The flexible covering product of claim 1 , wherein the protective membrane comprises a polymer film.
8 . The flexible covering product of claim 7 , wherein the polymer film is a thermoplastic polymer film.
9 . The flexible covering product of claim 1 , wherein the protective membrane is a two layer laminate of a polymeric film and a fabric, wherein the fabric side of the laminate is adhered to the first major surface of the foil layer.
10 . The flexible covering product of claim 9 , wherein the protective membrane has sufficient internal cohesive strength as to have a peel strength of at least about 15 lbs per inch in accordance with ASTM D1876.
11 . The flexible covering product of claim 1 , wherein the protective membrane is a three layer laminate of a fabric between two polymeric films.
12 . The flexible covering product of claim 11 , wherein the protective membrane has sufficient internal cohesive strength as to have a peel strength of at least about 15 lbs per inch in accordance with ASTM D1876.
13 . The flexible covering product of claim 1 , wherein the protective membrane is adhered to the first major surface of the foil layer by a pressure sensitive adhesive.
14 . The flexible covering product of claim 1 , wherein the foil layer comprises aluminum.
15 . The flexible covering product of claim 1 , wherein the foil layer comprises copper.
16 . The flexible covering product of claim 1 , wherein the foil layer is from about 0.025 mm to about 0.01 mm thick.
17 . The flexible covering product of claim 1 , wherein the pressure sensitive adhesive comprises styrene-ethylene-butylene-styrene resin.
18 . The flexible covering product of claim 1 , wherein the product is less than about 1.5 mm thick.
19 . A method of protecting a building structure from a fire, comprising applying a flexible covering product of claim 1 to the building structure, wherein no additional covering material is provided on top of the flexible covering product.
20 . A method of using the flexible covering product of claim 6 , comprising:
a) providing the flexible covering product of claim 6 to a work site of a building structure to be covered,
b) removing the release liner from the flexible covering product;
c) applying the adhesive side of the flexible covering product to the surface of the building structure in a manner that substantially covers the building structure surface in need of covering, wherein no additional covering material is provided on top of the flexible covering product.