Building panels, assemblies, and associated methods

Patent metadata

Field	Value
Publication number	US-11680404-B2
Application number	US-202016893717-A
Country	US
Kind code	B2
Filing date	Jun 5, 2020
Priority date	Jun 7, 2019
Publication date	Jun 20, 2023
Grant date	Jun 20, 2023

Abstract

Building panels, assemblies of building panels, and associated methods are provided. A building panel includes a structural core, such as a set gypsum core, at least one filamentous scrim associated with the core, and a nonwoven mat facer.

First claim

What is claimed is:

1. A roofing panel, comprising:
a set gypsum core having at least one edge;
a filamentous scrim associated with the set gypsum core, the filamentous scrim comprising a mesh constructed of elongated yarns defining a plurality of openings therebetween; and
a fibrous mat associated with the filamentous scrim,
wherein the set gypsum core penetrates into and encapsulates the elongated yarns of the filamentous scrim such that the filamentous scrim is internally spaced from the at least one edge of the set gypsum core.

2. The roofing panel of claim 1 , wherein the filamentous scrim has a weight of from about 4 oz/yd 2 to about 25 oz/yd 2 .

3. The roofing panel of claim 1 , wherein each of the elongated yarns is fiberglass and comprises a plurality of elongated filaments.

4. The roofing panel of claim 1 , wherein the set gypsum core further penetrates into at least a portion of the fibrous mat.

5. The roofing panel of claim 1 , wherein the mesh comprises two sets of approximately parallel elongated yarns spaced from one another, with the two sets being disposed approximately perpendicularly to one another.

6. The roofing panel of claim 5 , wherein the two sets of approximately parallel elongated yarns are adhered together.

7. The roofing panel of claim 5 , wherein each set of approximately parallel elongated yarns is disposed approximately parallel to at least one edge of the roofing panel.

8. The roofing panel of claim 5 , wherein the approximately parallel elongated yarns within each set are spaced from one another at a distance of from about 0.1 inch to about 0.5 inch.

9. The roofing panel of claim 1 , wherein each of the elongated yarns has a width or diameter of from about 0.05 inch to about 0.5 inch.

10. The roofing panel of claim 1 , wherein each of the plurality of openings has an area of from about 0.01 in 2 to about 0.5 in 2 .

11. The roofing panel of claim 1 , wherein the fibrous mat comprises a nonwoven fiberglass mat facer formed of a plurality of glass fibers.

12. The roofing panel of claim 11 , further comprising an elastic coating on a surface of the nonwoven mat facer opposite the gypsum core.

13. The roofing panel of claim 12 , wherein the elastic coating comprises an elastomeric acrylic co-polymer/resin, polyvinyl butyral, polyurea/polyurethane hybrid, polyurethane elastomer, synthetic rubber, and/or a rubberized/elastomeric coating material.

14. The roofing panel of claim 1 , wherein the roofing panel displays a wind uplift resistance of at least 120 lb/ft 2 , for a ¼ inch panel tested on a roofing assembly having 8 or fewer fasteners under reduced pressure.

15. The roofing panel of claim 1 , wherein the roofing panel displays a wind uplift resistance of at least 195 lb/ft 2 , for a ⅝ inch panel tested on a roofing assembly having 8 or fewer fasteners under reduced pressure.

Assignees

• Georgia Pacific Gypsum Llc

Inventors

• Gilley Stuart Brandon
• Harrison Charles Richard
• Kayello Hamed Mustafa
• Wang Xianyong

Classifications

• B32B5/022

  Non-woven fabric · CPC title

• B32B2419/06

  Roofs, roof membranes · CPC title

• B32B2607/00

  Walls, panels · CPC title

• B32B2307/3065

  Flame resistant or retardant, fire resistant or retardant · CPC title

• B32B2255/02

  on fibrous or filamentary layer · CPC title