Multifunction structural furring system

Patent metadata

Field	Value
Publication number	US-10815669-B2
Application number	US-201815940715-A
Country	US
Kind code	B2
Filing date	Mar 29, 2018
Priority date	Mar 30, 2017
Publication date	Oct 27, 2020
Grant date	Oct 27, 2020

Abstract

Structural furring systems having enhanced drainage functionality are described. Furring strips can include a substantially planar face, substantially planar webs extending from edges of the face, and substantially planar legs extending from opposite edges of the legs. The face and/or legs include a row or array of protrusions configured to accommodate drainage and ventilation between the furring strip and an attached exterior cladding and/or building substrate. Furring strips can be manufactured by rolling a sheet metal such as steel. Additional embodiments include a furring tape configured to be affixed to a substantially flat face of a commercially available furring strip to provide similar drainage features.

First claim

What is claimed is:

1. A wall cladding system having a multifunction structural furring, the wall cladding system comprising:
a metal furring strip, said furring strip comprising:
a substantially planar face defined generally by a length and a width, the face comprising a first edge and a second edge opposite the first edge along the width, the face comprising an array of integrally formed dimples with a spacing of at least 0.25 inches and not greater than approximately 1 inch between adjacent dimples, each dimple comprising a protrusion extending from an outer side of the face and a recess within an inner side of the face opposite the protrusion, at least a portion of each dimple of the face comprising a spherical segment;
a plurality of substantially planar webs, each web extending from the first edge or the second edge of the face in a direction opposite the outer side, each web comprising a plurality of openings extending through the web, the openings configured to allow water to flow through both webs; and
a plurality of substantially planar legs parallel to the face, each leg extending from one of the plurality of webs at an end opposite the face, each leg comprising a row of integrally formed dimples, each dimple comprising a protrusion extending from an inner side of the leg opposite the webs and face and a recess within an outer side of the face opposite the protrusion, at least a portion of each dimple of the legs comprising a spherical segment;
wherein the furring strip is mounted to the exterior of a building substrate such that the convex dimples of the legs abut the building substrate and the length of the face is in a horizontal orientation relative to the building substrate; and

at least one wall cladding panel mounted to the furring strip such that the convex dimples of the face abut the wall cladding panel;
wherein an inner surface of the wall cladding panel, the outer side of the face, and two or more of the dimples of the face define a first gravity-assisted drainage flow path; and
wherein the building substrate, the inner sides of the legs, and two or more of the dimples of the legs define a second gravity-assisted drainage flow path.

2. The wall cladding system of claim 1 , wherein the rolled sheet metal comprises steel having a thickness of at least 20 gauge and not greater than 16 gauge.

3. The wall cladding system of claim 1 , wherein the dimples are arranged in a rectangular array on the face.

4. The wall cladding system of claim 1 , wherein the dimples extend to a height of between approximately 0.03125 inches and approximately 0.25 inches relative to the outer side of the face.

5. The wall cladding system of claim 1 , wherein a wind load producing a force of 44.4 lbf at two or more adjacent mechanical fasteners mounting the wall cladding panel to the furring strip induces a deflection in the face between 0 and l/240 inches, where l is the span distance, expressed in inches, between the two adjacent mechanical fasteners.

6. A furring strip for mounting a wall cladding article to a building substrate, the furring strip comprising:
a substantially planar face defined generally by a length and a width, the face comprising a first edge and a second edge opposite the first edge along the width;
a plurality of substantially planar webs, each web extending from the first edge or the second edge of the face; and
a plurality of substantially planar legs parallel to the face, each leg extending from one of the plurality of webs at an end opposite the face;
wherein the face comprises a plurality of integrally formed dimples with a spacing of at least 0.25 inches and not greater than approximately 1 inch between adjacent dimples, each dimple comprising a protrusion extending from an outer side of the face and a recess within an inner side of the face opposite the protrusion configured to produce one or more drainage channels between the face and a cladding article secured to the face, at least a portion of each dimple comprising a spherical segment, said drainage channels defining at least one gravity-assisted fluid flow path when the furring strip is mounted in a horizontal or vertical orientation.

7. The furring strip of claim 6 , wherein each of the plurality of legs comprises a plurality of protrusions configured to produce one or more drainage channels between the legs and a building substrate secured to the legs.

8. The furring strip of claim 6 , wherein the protrusions comprise an array of dimples extending from an outer side of the face.

9. The furring strip of claim 8 , wherein the dimples are arranged in a rectangular array on the face.

10. The furring strip of claim 8 , wherein the dimples extend to a height of between approximately 0.03125 inches and approximately 0.25 inches relative to the outer side of the face.

11. The furring strip of claim 6 , wherein each of the webs comprises a plurality of openings extending through the web to accommodate water or air flow through the web.

12. The furring strip of claim 11 , wherein each of the openings has a width between approximately 0.1 inches and approximately 0.3 inches, and a length between approximately 0.5 inches and 1.5 inches.

13. The furring strip of claim 6 , wherein the furring strip comprises rolled sheet steel having a thickness of at least 20 gauge and not greater than 16 gauge.

14. The furring strip of claim 6 , wherein a wind load of approximately 44.4 lbf at two or more fastening points along the face produces a deflection between 0 and l/240 inches, where l is the span distance, expressed in inches, between the fastening points.

15. An adhesive drainage tape for a furring strip, the adhesive tape comprising:
a substantially planar tape defined generally by a length, a width, an inner surface, and an outer surface, the inner surface at least partially coated with a chemical adhesive; and
an array of protrusions extending from the outer surface, the protrusions comprising substantially spherical domes generally defined by a height relative to the outer surface and a spacing of at least 0.25 inches and not greater than approximately 1 inch between adjacent protrusions;
wherein the adhesive tape is configured to be fixed by the chemical adhesive to a substantially flat face surface of a structural furring strip before an exterior cladding article is coupled to the furring strip such that, when the exterior cladding article is coupled to the furring strip, a gravity-assisted drainage flow path is defined by an inner surface of the wall cladding panel, the outer surface of the tape, and two or more of the protrusions.

16. The adhesive drainage tape of claim 15 , wherein the protrusions are arranged in a rectangular array on the outer surface.

17. The adhesive drainage tape of claim 15 , wherein the protrusions extend to a height of between approximately 0.03125 inches and approximately 0.25 inches relative to the outer surface.

18. The adhesive drainage tape of claim 15 , wherein the protrusions extend to a height of between approximately 0.0625 inches and approximately 0.125 inches relative to the outer surface.

19. The adhesive drainage tape of claim 15 , wherein the protrusions comprise dimples having a circular cross-section.

20. The adhesive drainage tape of claim 15 , wherein the width of the adhesive tape is selected to fit against a face of a hat channel furring strip.

Assignees

• Hardie James Technology Ltd

Inventors

• Diercks Chad
• Batres Benjamin
• Mcendree Michael
• Shaw David
• Gonzalez Jose

Classifications

• E04F13/0887

  Adhesive means specially adapted therefor, e.g. adhesive foils or strips · CPC title

• E04F13/0803

  with load-supporting elongated furring elements between wall and covering elements · CPC title

• E04F13/0805 Primary

  with additional fastening elements between furring elements and the wall · CPC title

• E04F19/06

  specially designed for securing panels {or masking the edges of wall- or floor-covering elements (E04F19/022, E04F19/026 and E04F19/04 take precedence)} · CPC title

• E04F13/007

  Outer coverings for walls with ventilating means · CPC title