FLOOR UNDERLAYMENT HAVING SELF-SEALING VAPOR BARRIER

摘要

A flooring material having a textile pad substructure with a density of greater than 10 pounds per cubic foot is provided. The textile pad has reinforcement and binding fibers. The binding fibers are thermoplastic and are used to bind the reinforcement fibers together. The pad is created by heating and compressing a fibrous textile batt so that it has a density of greater than 13 pounds per cubic foot.

主权项

1. A floor structure consisting of:
an insulative pad disposed adjacent to a laminate floor covering, the insulative pad having an interlocked fibrous web layer, wherein after the insulative pad is compressed to 75% of its original thickness during a compression set test, the material is then capable of returning to more than 80% of its original thickness and has a compression resistance at a compression of 25% of the original thickness of greater than about 20 psi; a multilayer film vapor barrier fixably coupled to the insulative pad, wherein the multilayer film vapor barrier comprises a pair of external polyamide skin layers, disposed between the polyamide skin layers are internal layers of linear low-density polyethylene; and a fastener pierced through the insulative pad and the multilayer film vapor barrier, forming a hole defined in the multilayer film vapor barrier, wherein the multilayer film vapor barrier elastically relaxes, compressing the hole through the multilayer film vapor barrier around the fastener, and thereby forming a seal between the fastener and the multilayer coextruded film vapor barrier which reduces transport of water vapor through the multilayer coextruded film vapor barrier.