Self repairing roof membrane

Details Self repairing roof membrane Self repairing roof membrane

B - Operations, Transporting

32

B

B32B 27/08 (2006.01) B32B 11/00 (2006.01) B32B 25/08 (2006.01) E04D 5/00 (2006.01)

Patent

CA 2640911

A self repairing roof membrane includes a water impervious layer such as EPDM covering a layer including a water swellable polymer. Preferably, the water swellable polymer is bound to a nonwoven web. If a tear is formed through the membrane, water that passes through the tear will be absorbed by the water swellable polymer, which will form a hydrogel and plug the tear.

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