# US 9,040,143 B2 · Low-E housewrap

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 9,040,143 B2
- Document ID: US9040143B2
- Status: Granted
- Kind: B2
- Application number: 13/107,568
- Filed: 2011-05-13
- Published: 2011-11-24
- Granted: 2015-05-26
- Earliest claimed: 2010-05-21
- Assignees: Environmentally Safe Products, Inc.
- Applicants: Cory L. Groft; Thomas W. Dauber
- Inventors: Cory L. Groft; Thomas W. Dauber
- Web page: https://patentgrep.com/patent/US9040143B2

## CPC

- E04B 1/62: Insulation or other protection; Elements or use of specified material therefor (chemical compositions C01 - C11; implements for applying insulation or sealings E04F21/00; buildings to withstand, or to provide protection against, external undesired influences E04H9/00; sealing pipes in walls or partitions F16L5/02; shielding against dangerous radiation G21F)
- B32B 3/02: characterised by features of form at particular places, e.g. in edge regions {(non-uniform thickness B32B3/263)}
- B32B 3/266: {characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12}
- B32B 5/028: {Net structure, e.g. spaced apart filaments bonded at the crossing points}
- B32B 5/18: characterised by features of a layer {of} foamed material
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 13/00: Layered products comprising a {a layer of} water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
- B32B 15/046: {of foam}
- B32B 15/085: comprising polyolefins
- B32B 15/14: next to a fibrous or filamentary layer
- B32B 15/20: comprising aluminium or copper {(B32B15/016 and B32B15/017 take precedence)}
- B32B 27/08: of synthetic resin
- B32B 27/12: next to a fibrous or filamentary layer
- B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)}
- B32B 37/02: characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
- B32B 38/04: Punching, slitting or perforating
- E04B 1/625: {Sheets or foils allowing passage of water vapor but impervious to liquid water; house wraps}
- E04B 1/76: specifically with respect to heat only (heat insulation in general F16L59/00)
- B32B 2038/047: {Perforating}
- B32B 2266/025: Polyolefin
- B32B 2266/08: Closed cell foam
- B32B 2305/022: Foam
- B32B 2307/304: Insulating
- B32B 2307/416: Reflective
- B32B 2307/54: Yield strength; Tensile strength
- B32B 2307/5825: Tear resistant
- B32B 2307/724: Permeability to gases, adsorption
- B32B 2307/7242: Non-permeable
- B32B 2307/7246: Water vapor barrier
- B32B 2311/24: Aluminium
- B32B 2355/00: Specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of index codes B32B2323/00 - B32B2333/00
- B32B 2405/00: Adhesive articles, e.g. adhesive tapes
- B32B 2419/00: Buildings or parts thereof
- B32B 2607/00: Walls, panels
- E04B 2001/7691: {Heat reflecting layers or coatings}
- Y02A 30/00: Adapting or protecting infrastructure or their operation
- Y02B 30/90: Passive houses; Double facade technology
- Y10T 156/1057: Subsequent to assembly of laminae
- Y10T 428/24273: including aperture
- Y10T 428/24322: Composite web or sheet
- Y10T 428/24331: including nonapertured component
- E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001})
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## 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.

## Claims

### Claim 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.

### Claim 2 (depends on 1)

The flexible insulation of claim 1, wherein the perforations are provided in the flexible insulation at a rate of four holes per 1.25 square inch.

### Claim 3 (depends on 1)

The flexible insulation of claim 1, wherein the perforations are provided in rows, and wherein at least one perforation in one row of perforations is offset from another perforation in another row of perforations.

### Claim 4 (depends on 1)

The flexible insulation of claim 1, wherein the perforations are generated from a perforation system consisting of 1/16″ punchers.

### Claim 5 (depends on 1)

The flexible insulation of claim 1, wherein the perforations are provided in a repeating pattern.

### Claim 6 (depends on 1)

The flexible insulation of claim 1, wherein the flexible insulation is a low-E material.

### Claim 7 (depends on 1)

The flexible insulation of claim 1, wherein the base insulating material comprises closed cell polyethylene foam.

### Claim 8 (depends on 1)

The flexible insulation of claim 1, wherein the base insulating material includes polyolefin.

### Claim 9 (depends on 1)

The flexible insulation of claim 1, wherein the base insulating material has a thickness of approximately 0.25″.

### Claim 10 (depends on 1)

The flexible insulation of claim 1, wherein the base insulating material and the first side of the reinforcement material are flame or heat roller laminated together and wherein the second side of the reinforcement material and the covering material are flame or heat roller laminated together.

### Claim 11 (depends on 1)

The flexible insulation of claim 1, wherein the reinforcing material includes a scrim reinforcing material.

### Claim 12 (depends on 11)

The flexible insulation of claim 11, wherein the scrim reinforcing material provides the flexible insulation with a tensile strength of approximately 23 pounds per inch width in a machine direction and 25 pounds per inch width in a cross machine direction on a test specimen made of the flexible insulation, wherein the test specimen has a size of approximately 1″ wide by 9″ long.

### Claim 13 (depends on 1)

The flexible insulation of claim 1, wherein the covering material includes aluminum.

### Claim 14 (depends on 1)

The flexible insulation of claim 1, wherein the covering material is made of approximately 99.4% polished aluminum.

### Claim 15 (depends on 1)

The flexible insulation of claim 1, wherein the reinforcing material and the covering material extend beyond an edge of the base insulating material to form the flap portion.

### Claim 16 (depends on 15)

The flexible insulation of claim 15, wherein the flap portion is a self adhered drainage plane.

### Claim 17 (depends on 1)

The flexible insulation of claim 1, wherein the flexible insulation further comprises an adhesive material on an external surface of the flexible insulation.

### Claim 18 (depends on 17)

The flexible insulation of claim 17, wherein the flexible insulation further comprises a protective film over the covering material with the adhesive material provided therebetween.

### Claim 19 (depends on 1)

The flexible insulation of claim 1, wherein the adhesive material is provided in a strip along an edge of the flexible insulation and is provided on a surface of the covering material.

### Claim 20 (depends on 1)

The flexible insulation of claim 1, further comprising a second covering material positioned over a back side of the base insulating material.

### Claim 21 (depends on 1)

The flexible insulation of claim 1, wherein the flexible insulation achieves a permeance and water vapor transmission of approximately 7 perm or 40 g/day/m2.

### Claim 22 (depends on 1)

The flexible insulation of claim 1, wherein the flexible insulation achieves an emittance of 0.10 or less in accordance with test Method C 1371.

### Claim 23 (depends on 1)

The flexible insulation of claim 1, wherein the flexible insulation achieves an emittance of between about 0.03 and about 0.05 in accordance with test Method C 1371.

### Claim 24 (depends on 1)

The flexible insulation of claim 1, wherein the covering material is reflective.

### Claim 25

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.