Non-combustible edge for insulated concrete sandwich wall panels

Inventors: Jeffrey Van Sloun (Perrysburg, OH); Tiffany Coppock (Kerens, TX)

Assignee: Owens Corning Intellectual Capital, LLC

E04B2/92 E04B2/847

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Quick Facts

Patent No.: US 12687016
App. No.: 18/633,714
Granted: Jul 21, 2026
Kind: B2

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Abstract

An insulation system for use with a sandwich wall panel is disclosed. The insulation system reduces the risk of flame spread through the sandwich wall panels. The insulation system provides a balance between good insulating properties and reduced flammability, without detrimentally increasing the cost of the sandwich wall panel.

Claims (29)

1 . A sandwich wall panel assembly comprising:

a first building wall panel having a first major surface facing a first exterior of the sandwich wall panel assembly and a second major surface facing a first interior of the sandwich wall panel assembly;

a second building wall panel having a first major surface facing a second exterior of the sandwich wall panel assembly and a second major surface facing a second interior of the sandwich wall panel assembly;

wherein at least one of the first building wall panel and the second building wall panel is a concrete panel;

a first insulating member having a first major surface and a second major surface and a plurality of edges defining a perimeter of the first insulating member, the first insulating member positioned between the first building wall panel and the second building wall panel; and

a second insulator in the form of at least one ribbon segment that is separate from the first building wall panel and the second building wall panel, positioned adjoining each of the edges;

wherein the first insulator is combustible and the second insulator is non-combustible.

2 . The sandwich wall panel assembly of claim 1 , wherein the first insulator is comprised of foam insulation.

3 . The sandwich wall panel assembly of claim 1 , wherein the first insulator is comprised of XPS, EPS, polyisocyanurate, and/or phenolic foam insulations.

4 . The sandwich wall panel assembly of claim 1 , wherein the second insulator is cellular glass.

5 . The sandwich wall panel assembly of claim 1 , wherein the second insulator comprises a plurality of ribbon segments positioned along a plurality of the edges.

6 . The sandwich wall panel assembly of claim 1 , wherein the segments are of unequal width.

7 . The sandwich wall panel assembly of claim 1 , wherein an area of the surface of the second insulator is 2% to 25% of the area of the second major surface of the first building wall panel.

8 . The sandwich wall panel assembly of claim 1 , wherein the second insulator has a width of 2 inch to 12 inch.

9 . The sandwich wall panel assembly of claim 1 , wherein the second insulator forms a perimeter around the edges of the first insulator.

10 . A method of manufacturing a sandwich wall panel assembly, the method comprising:

providing a first building wall panel having a first major surface facing a first exterior of the sandwich wall panel assembly and a second major surface facing a first interior of the sandwich wall panel assembly;

providing a second building wall panel having a first major surface facing a second exterior of the sandwich wall panel assembly and a second major surface facing a second interior of the sandwich wall panel assembly;

wherein at least one of the first building wall panel and the second building wall panel is a concrete panel;

positioning a first insulator between the first building wall panel and the second building wall panel, the first insulator having a first major surface and a second major surface and a plurality of edges defining a perimeter; and

positioning a second insulator in the form of at least one ribbon segment, that is separate from the first building wall panel and the second building wall panel, adjoining each of the edges;

wherein the first insulator is combustible and the second insulator is non-combustible.

11 . The method of claim 10 , wherein the first insulator is comprised of foam insulation.

12 . The method of claim 10 , wherein the second insulator is cellular glass.

13 . The method of claim 10 , wherein the second insulator comprises a plurality of segments positioned along a corresponding plurality of edges.

14 . The method of claim 10 , wherein the area of the surface of the second insulator is 2% to 20% of the area of the second major surface of the first building wall panel.

15 . The method of claim 10 , wherein the second insulator has a width of 2 inch to 12 inch.

16 . The method of claim 15 , wherein at least two of the segments differ in width.

17 . The method of claim 10 , wherein the second insulator is positioned to form a perimeter around the edges of the first insulator.