Low-E housewrap

摘要

A low-E housewrap having improved energy efficiency protection against air infiltration and moisture build-up in buildings. The aforementioned low-E housewrap material utilizing existing framing openings or without increasing the wall profile of a building. The present invention provides a low-E housewrap material which may be implemented on traditional 2×4 framing having R-15 mass insulation material within existing or newly constructed framing cavities. The material of the present invention also meets requirements for serving as a water resistive barrier as defined by ICC AC38.

主权项

1. A flexible insulation comprising:
a base insulating material; a reinforcement material having a first side and a second side; a covering material positioned over reinforcement material, wherein the first side of the reinforcement material and the base insulating material are coupled without use of an adhesive and wherein the second side of the reinforcement material and the covering material are coupled without use of an adhesive, wherein the base insulating material provides a system U-value less than 0.063; a plurality of perforations, wherein each of the perforations comprises an opening through both the base insulating material and the covering material; and a water resistive flap portion extending beyond an edge of the base insulating material, the flap portion being configured to cover an edge of a portion of an abutting second flexible insulation and to provide a water resistive barrier between the abutting flexible insulations, wherein the plurality of perforations provide the flexible insulation with a permeance and water vapor transmission in a range of about 5 to about 20 perm.