Granted Patent B2

US 7,678,219 · App. 11/500,128 · Granted Mar 16, 2010

Abstract

Claims (34)

1. A method of forming a building panel including facer and liner sheets surrounding a core material comprising the steps of:

pre-notching a facer sheet at a false joint;

roll forming side joints of the facer sheet;

bending the facer sheet at the pre-notched area to form the false joint, wherein the facer sheet is a continuous sheet across the false joint; and

bonding the facer sheet having the false joint and the liner sheet to a core material to form the building panel,

wherein the false joint comprises a depression formed in the facer sheet, the depression comprising a base surface extending into the foam core and opposing side surfaces, and

wherein the false joint comprises tabs provided one each on the opposing side surfaces at the pre-notched area, wherein the tabs are folded under one of the side joints of the facer sheet in the formation of the false joint.

2. The method of claim 1 , further comprising the steps of:

pre-notching the facer sheet at each real joint; and

cutting the building panel to length at each real joint.

3. The method of claim 1 , further comprising the step of placing a gasket into the false joint.

4. The method of claim 3 , wherein the gasket is adhered to the facer sheet at the false joint by an adhesive.

5. The method of claim 1 , where the one side joint of the facer sheet include a sloped shelf, and wherein the tabs are folded under the sloped shelf in the formation of the false joints.

6. The method of claim 1 , wherein the facer sheet is provided as a coil of sheet material.

7. The method of claim 1 , where the facer sheet is made of a metallic material.

8. The method of claim 1 , where the false joints are formed via a press operation.

9. The method of claim 1 , wherein the core material comprises an insulating foam core material.

10. A method of forming a building panel including facer and liner sheets surrounding a core material comprising the steps of:

providing a facer sheet in the form of a coil of sheet material, the facer sheet having a length and opposed ends defining a width;

pre-notching the facer sheet at the opposed ends at each false joint along the length of the facer sheet;

pre-notching the facer sheet at the opposed ends at each real joint along the length of the facer sheet;

roll forming the opposed ends of the facer sheet to form side joints;

bending the facer sheet across the width of the facer sheet at the pre-notched areas to form the false joints, wherein the facer sheet is a continuous sheet across the false joints;

cutting the facer sheet at each real joint to form a plurality of facer sheets;

providing a liner sheet in the form of a coil of sheet material;

bonding the plurality of facer sheets having false joints and the liner sheet to a core material to form building panels; and

cutting the core material and liner sheet at each real joint of the facer sheets to form separate building panels,

wherein the false joint comprises a depression formed in the facer sheet, the depression comprising a base surface extending into the foam core and opposing side surfaces, and

wherein the false joint comprises a tab formed on each of the opposing side surfaces at one of the pre-notched areas at the false joint, wherein the tabs are folded under the side joint of the facer sheet in the formation of the false joints.

11. The method of claim 10 , further comprising the step of attaching a gasket into the false joint.

12. The method of claim 10 , wherein the side joint of the facer sheet includes a sloped surface, and wherein the tabs are folded under the sloped surface in the formation of the false joints.

13. The method of claim 10 , where the facer sheet is made of a metallic material.

14. The method of claim 10 , where the false joints are formed via a press operation.

15. The method of claim 10 , wherein the core material comprises an insulating foam core material.

Assignments (18)