Granule coated waterproof roofing membrane

Patent metadata

Field	Value
Publication number	US-9834935-B2
Application number	US-201514645500-A
Country	US
Kind code	B2
Filing date	Mar 12, 2015
Priority date	Sep 13, 2011
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

A roofing membrane includes a membrane layer. An adhesive layer is adhered to a first side of the membrane layer and a layer of granules is adhered to the first adhesive layer.

First claim

What is claimed is:

1. A granule coated waterproof roofing membrane comprising:
a waterproof membrane layer formed substantially from at least one of: ketone ethylene ester (KEE) resin, polyvinyl chloride (PVC), ethylene propylene diene monomer rubber (EPDM), and thermoplastic polyolefin (TPO);
a reinforcement layer heat bonded to the waterproof membrane layer;
an adhesive layer adhered to a first side of the reinforcement layer;
wherein the reinforcement layer has strands ends that extend into the adhesive layer to enhance the adhesion between the adhesive layer and the waterproof membrane; and
a layer of ceramic coated roofing granules adhered to the first adhesive layer,
wherein the strand ends that extend into the adhesive layer comprise air textured yarns that have been processed to introduce durable crimps, coils, or loops along a length of the yarn.

2. The roofing membrane according to claim 1 , wherein the adhesive layer defines a first adhesive layer, and wherein the roofing membrane further comprises a second adhesive layer bonded to a second side of the membrane layer.

3. The roofing membrane according to claim 2 , further comprising a release layer adhered to the second adhesive layer.

4. The roofing membrane according to claim 1 , wherein the reinforcement layer is a woven or knitted fibrous material.

5. The roofing membrane according to claim 4 , wherein the woven or knitted fibrous material is formed from at least one of polyester fiber, glass fiber, and combinations thereof.

6. The roofing membrane according to claim 1 , wherein the reinforcement layer is a non-woven fibrous material.

7. The roofing membrane according to claim 6 , wherein the nonwoven or knitted fibrous material is formed from at least one of polyester fiber, glass fiber, and combinations thereof.

8. The roofing membrane of claim 1 , wherein the waterproof membrane layer is formed substantially from a blend of ketone ethylene ester and polyvinyl chloride.

9. The roofing membrane according to claim 2 , wherein the first and second adhesive layers comprise asphalt.

10. The roofing membrane according to claim 9 , wherein the asphalt of the first and second adhesive layers is a polymer modified asphalt.

11. The roofing membrane according to claim 10 , wherein the polymer modified asphalt includes one of styrene-butadiene-styrene (SBS), styrene-isoprene-styrene (SIS), styrene-butadiene (SB), and blends thereof.

12. The roofing membrane according to claim 11 , wherein the polymer modified asphalt further comprises at least one of a thermoplastic polymer and a thermoplastic polyolefin.

13. The roofing membrane according to claim 12 , wherein the polymer modified asphalt further comprises at least one of polyethylene, polypropylene, an ethylene-propylene copolymer, limestone, dolomite, talc, recycled roofing material, tackifying resin, process oil, and wax.

14. The roofing membrane of claim 2 , wherein the roofing membrane is self-adhering.

15. The roofing membrane of claim 2 , further comprising an adhesion promoting layer between the waterproof membrane and the adhesive layer for enhancing the adhesion between the adhesive layer and the waterproof membrane.

16. The roofing membrane of claim 15 , wherein the adhesion promoting layer is a stranded material that has strand ends that extend into the adhesive layer.

17. The roofing membrane of claim 15 , wherein the adhesion promoting layer is a stranded material that is bonded to the waterproof membrane and has strand ends that extend into the adhesive layer.

18. The roofing membrane of claim 4 , wherein the puncture resistance of the roofing material is from 1751 bf to 2501 bf.

19. A granule coated waterproof roofing membrane comprising:
a waterproof membrane layer formed substantially from at least one of: ketone ethylene ester (KEE) resin, polyvinyl chloride (PVC), ethylene propylene diene monomer rubber (EPDM), and thermoplastic polyolefin (TPO);
a reinforcement layer heat bonded to the waterproof membrane layer;
an adhesive layer adhered to a first side of the reinforcement layer;
wherein the reinforcement layer has strands ends that extend into the adhesive layer to enhance the adhesion between the adhesive layer and the waterproof membrane; and
a layer of ceramic coated roofing granules adhered to the first adhesive layer,
wherein the strand ends that extend into the adhesive layer comprise air textured yarns that have been processed to introduce durable crimps or coils along a length of the yarn.

Assignees

• Owens Corning Intellectual Capital Llc

Inventors

• Loftus James E
• Wagner Jay D

Classifications

• D06N5/006

  characterised by the means to apply it to a support or to another roofing membrane, e.g. self-adhesive layer or strip · CPC title

• E04D5/148

  fastening by gluing · CPC title

• E04D5/10

  by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen · CPC title

• E04D5/12 Primary

  specially modified, e.g. perforated, with granulated surface, with attached pads · CPC title

• Y10T428/24388

  Silicon containing coating · CPC title