Gypsum fiber roof panel with angled edge for accommodating environmentally-induced expansion

Patent metadata

Field	Value
Publication number	US-10486388-B2
Application number	US-201815878098-A
Country	US
Kind code	B2
Filing date	Jan 23, 2018
Priority date	Mar 30, 2017
Publication date	Nov 26, 2019
Grant date	Nov 26, 2019

Abstract

A gypsum fiber roofing panel with an angled edge for accommodating environmentally-induced expansion is provided, including a homogeneous body formed from a slurry of gypsum and reinforcing fibers having a face panel, a back panel, and a plurality of side edges, each side edge having an angle relative to a plane defined by the adjacent face panel in the range of 81-87° for accommodating environmentally-induced expansion relative to adjacent panels upon installation on a roof.

First claim

The invention claimed is:

1. A gypsum fiber roofing panel, comprising:
a homogeneous body formed from a slurry of gypsum and reinforcing fibers having a face panel, a back panel, and a plurality of side edges;
each said side edge having an angle extending from said face panel to said back panel relative to a plane defined by n adjacent said face panel in the range of 81-87° for accommodating environmentally-induced expansion relative to adjacent panels upon installation on a roof.

2. The roofing panel of claim 1 , wherein each of four sides of said panel have said angled side edges.

3. The roofing panel of claim 1 , wherein said angle of said side edge measured relative to a plane defined by the adjacent face panel is 85°.

4. The roofing panel of claim 1 , wherein said panel has a thickness in the range of ¼-inch to ½-inch.

5. The roofing panel of claim 4 wherein said panel has a density of approximately 77 pcf.

6. The roofing panel of claim 1 , wherein said panel has a density in the range of 50-85 pcf.

7. The roofing panel of claim 1 , wherein said panel has a density in the range of 64 to 80 pcf.

8. A gypsum fiber roofing panel, comprising:
a homogeneous body formed from a slurry of gypsum and reinforcing fibers having a face panel, a back panel, and a plurality of side edges, said panel having a thickness of approximately ¼-inch and a density of approximately 77 pcf; and
each said side edge having an angle extending from said face panel to said back panel relative to a plane defined by an adjacent said face panel of approximately 85° and forming a point adjacent said back panel for accommodating environmentally-induced expansion relative to adjacent panels upon installation on a roof.

9. A pair of gypsum fiber roofing panels used to form a roof, comprising:
each said panel having a homogeneous body formed from a slurry of gypsum and reinforcing fibers having a face panel, a back panel, and a plurality of side edges;
each said side edge having an angle extending from said face panel to said back panel relative to a plane defined by an adjacent said face panel in the range of 81-87°, each said side edge forming a point;
upon assembly of said panels adjacent each other, said side edges contact each other at said point of each said panel;
said panels being constructed and arranged so that said angled edges of said adjacent panels collapse to form a generally vertical edge for accommodating environmentally-induced expansion relative to adjacent panels upon installation on the roof.

10. The pair of roofing panels of claim 9 , wherein in each said panel, each of four sides of said panel have said angled side edges.

11. The pair of roofing panels of claim 9 , wherein each said panel has a thickness in the range of ¼-inch to ½-inch.

12. The pair of roofing panels of claim 9 , wherein each said panel has a density in the range of 50-85 pcf.

13. The pair of roofing panels of claim 12 wherein each said panel has a density of approximately 77 pcf.

14. The pair of roofing panels of claim 9 , wherein each said panel has a density in the range of 64 to 80 pcf.

15. The pair of roofing panels of claim 9 , wherein each said panel has a thickness of ¼-inch, a density of approximately 77 pcf and said adjacent side edges compress approximately 0.040 inch to 0.055 inch under 18-20 pounds of force.

16. The pair of roofing panels of claim 9 , wherein each said panel has a thickness of ⅜-inch, a density of approximately 63 pcf and said adjacent side edges compress approximately 0.078 inch to 0.090 inch under 28-30 pounds of force.

Assignees

• United States Gypsum Co

Inventors

• Hough Michael J

Classifications

• E04D11/02

  Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition (gravelling of flat roofs E04D7/00; venting or ventilation E04D13/17) · CPC title

• C04B2111/00586

  Roofing materials · CPC title

• E04C2002/004

  Panels with profiled edges, e.g. stepped, serrated · CPC title

• E04C2/06

  reinforced · CPC title

• E04C2/30

  characterised by the shape or structure (translucent E04C2/54) · CPC title