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 a fibrous web layer wherein said fibrous web layer comprises reinforcement fibers being interlocked, 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 coextruded film vapor barrier fixably coupled to the insulative pad, wherein the multilayer coextruded film vapor barrier is formed of a pair of external polyamide skin layers, disposed between the polyamide skin layers are internal layers of linear low-density polyethylene, and disposed between the skin layers and the internal layer is an adhesive; and a fastener pierced through the insulative pad and the multilayer coextruded film vapor barrier, forming a hole defined in the multilayer coextruded film vapor barrier, wherein the multilayer coextruded film vapor barrier elastically relaxes, compressing the hole through the multilayer coextruded 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.