Low-E housewrap
AssigneeEnvironmentally Safe Products, Inc.
InventorsCory L. Groft, Thomas W. Dauber
Life of this patent
Estimating the term…
Abstract
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.
Claims25
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.
A low-E material comprising:
- a base insulating material, wherein the base insulating material comprises closed cell polyethylene foam or polyolefin and wherein the base insulating material has a thickness of approximately 0.25″, wherein the base insulating material provides a system U-value less than 0.063;
- a reinforcement material having a first side and a second side;
- a covering material including aluminum positioned on the reinforcement material, wherein the base insulating material and the first side of the reinforcement material are laminated together and the second side of the reinforcement material and the covering material are laminated together;
- 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 low-E material and to provide a water resistive barrier between the abutting low-E materials,
- wherein the plurality of perforations provide the low-E material with a permeance and water vapor transmission in a range of about 5 to about 20 perm.
Dependencies are inferred from the claim text.