Fire blocking reveal

Patent metadata

Field	Value
Publication number	US-9752318-B2
Application number	US-201614997291-A
Country	US
Kind code	B2
Filing date	Jan 15, 2016
Priority date	Jan 16, 2015
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

A fire-rated reveal piece and wall assemblies or other assemblies that incorporate the fire-rated reveal piece, in which the reveal piece can include an intumescent or other fire-resistant material strip. The reveal can be attached adjacent to a corner, flange or leg of a framing member, such as metal tracks, headers, header tracks, sill plates, bottom tracks, metal studs, wood studs or wall partitions, and placed between the framing member and a wall board member at a perimeter of a wall assembly to create a fire block arrangement. A fire spray material can be applied over a portion of the reveal piece.

First claim

What is claimed is:

1. A fire-rated wall joint reveal product configured to cover a gap between a wallboard and an adjacent structure, the reveal is positioned between the stud wall and a stud wall facing surface of the wallboard, the reveal comprising:
an elongate strap piece comprising a first free end and a second free end, a first bend and a second bend positioned between the first free end and the second free end, the first and second bends disposed at opposite ones of an upper edge and a lower edge of the strap piece, the first bend defining the upper edge of the strap piece in use, the first bend and the second bend defining a first vertical leg portion and a second vertical leg portion forming a gap therebetween, the first and second vertical leg portions being formed from a single piece of material, wherein, in cross-section, at least a portion of the first vertical leg portion horizontally overlaps a portion of the second vertical leg portion such that the first and second vertical leg portions extend between the stud wall and the stud wall facing surface of the wallboard, and the first and second vertical leg portions cover the gap between the wallboard and the adjacent structure; and
a heat-expandable intumescent strip attached to the strap piece and extending lengthwise along a surface of the strap piece configured to face the stud wall in use, the intumescent strip adjacent the second bend.

2. The fire-rated joint reveal product of claim 1 , wherein the strap further comprises a second intumescent material applied to one of the first vertical leg portion and the second vertical leg portion such that the second intumescent material is between the first vertical leg portion and the second vertical leg portion.

3. The fire-rated joint reveal product of claim 1 , wherein the strap further comprises a hem defined between the first bend and the first free end, the hem substantially parallel to the first and second vertical leg portions.

4. The fire-rated joint reveal product of claim 3 , wherein the first and second vertical leg portions and the hem are each planar and substantially parallel to each other.

5. The fire-rated joint reveal product of claim 3 , wherein the first and second vertical leg portions and the hem are formed from a single piece of material.

6. The fire-rated joint reveal product of claim 1 , wherein the strap further comprises a wallboard support defined between the first bend and the first free end, the wallboard support having a substantially J-shaped profile and extending outwards from the first and second vertical leg portions.

7. The fire-rated joint reveal product of claim 1 , wherein the strap further comprises a kickout portion such that the kickout portion forms an approximately 100 degree angle with the first and second vertical leg portions.

8. The fire-rated joint reveal product of claim 1 , wherein, in use, the strap is positioned adjacent to one of a first flange and a second flange of a track structure of a wall assembly such that the intumescent strip is between the strap and one of the first flange and the second flange of the track.

9. The fire-rated wall joint reveal product of claim 1 , wherein the single piece of material comprises a metal material.

10. The fire-rated wall joint reveal product of claim 1 , further comprising a third vertical leg portion, wherein, in cross-section, a portion of each of the first, second and third vertical leg portions horizontally overlap.

11. The fire-rated wall joint reveal product of claim 10 , wherein the first, second and third vertical leg portions are formed from a single piece of material.

12. A fire-rated wall joint reveal product configured to cover a gap between a wallboard and an adjacent structure, wherein the reveal is positioned between the stud wall and a stud wall facing surface of the wallboard, the reveal comprising:
an elongate strap piece comprising a first free end and a second free end, a first bend positioned between the first free end and the second free end, the first bend positioned between a first vertical leg portion and a second vertical leg portion, a second bend positioned between the first bend and the second free end, the first and second bends disposed at opposite ones of an upper edge and a lower edge of the strap piece, the second bend defining a third vertical leg portion, the first, second and third vertical leg portions being formed from a single piece of material, wherein, in cross-section, a portion of each of the first, second and third vertical leg portions horizontally overlap such that, in use, the first, second and third vertical leg portions extend between the stud wall and the stud wall facing surface of the wallboard, and the first and second vertical leg portions cover the gap between the wallboard and the adjacent structure.

13. The fire-rated wall joint reveal product of claim 12 , wherein the first and second vertical leg portions are each planar and substantially parallel to each other.

14. The fire-rated wall joint reveal product of claim 12 , further comprising a first heat-expandable intumescent strip attached to the strap piece and extending lengthwise along a stud wall-facing surface of the strap.

15. The fire-rated wall joint reveal product of claim 14 , further comprising a second heat-expandable intumescent strip positioned between adjacent third vertical leg portions.

16. The fire-rated wall joint reveal product of claim 12 , wherein the single piece of material comprises a metal material.

Assignees

• California Expanded Metal Products Co

Inventors

• Pilz Don A

Classifications

• E04B2/7409

  special measures for sound or thermal insulation, including fire protection · CPC title

• E04B1/941

  Building elements specially adapted therefor · CPC title

• E04B2/7457

  with wallboards attached to the outer faces of the posts, parallel to the partition (E04B2/7459 takes precedence) · CPC title

• E04B2/7411 Primary

  Details for fire protection · CPC title

• E04F13/00

  Coverings or linings, e.g. for walls or ceilings (flooring E04F15/00; decoration of surfaces, mosaic work B44, e.g. paper-hanging B44C7/00; made of webs, e.g. of fabrics or wallpaper {, as such, or their manufacturing} D03D, D04G, D04H, D06N, D21H; construction of {false} ceilings E04B9/00; roofings or similar water-tight coverings against precipitation E04D) · CPC title