Ridge vent with fire resistant material

Patent metadata

Field	Value
Publication number	US-2016333574-A1
Application number	US-201615152590-A
Country	US
Kind code	A1
Filing date	May 12, 2016
Priority date	May 12, 2015
Publication date	Nov 17, 2016
Grant date	—

Abstract

A ridge vent having a top side including a top wall with a bottom surface, a bottom side spaced apart from the top side, a side wall connecting the top side to the bottom side and an air outlet positioned in one of the top wall or the side wall. The ridge vent including a fire resistant material adjacent the bottom surface of the top wall. The ridge vent forms air flow path directing air through the vent and out of the air outlet. In a first position, the fire resistant material is not in the air flow path. In a second position, the first resistant material blocks the air flow path in response to the ridge vent being exposed to excessive heat.

First claim

1 . A ridge vent for covering an opening at the ridge of a roof, the ridge vent comprising:
a top side including a top wall with a bottom surface, a bottom side spaced apart from the top side, a side wall connecting the top side to the bottom side; an air outlet positioned in one of the top wall or the side wall; and a fire resistant material adjacent the bottom surface of the top wall; wherein the ridge vent forms an air flow path directing air through the vent and out of the air outlet; and wherein, in a first position, the fire resistant material is not in the air flow path.

2 . The ridge vent of claim 1 wherein, in a second position, the first resistant material blocks the air flow path in response to the ridge vent being exposed to excessive heat.

3 . The ridge vent of claim 2 wherein excessive heat is heat exceeding at least 260 deg. F.

4 . The ridge vent of claim 2 wherein excessive heat is heat exceeding at melting point of polypropylene.

5 . The ridge vent of claim 1 wherein the air flow path is between the bottom side and the fire resistant material.

6 . The ridge vent of claim 1 wherein the fire resistant material is a flexible composite multiple layer fire-resistant insulation blanket.

7 . The ridge vent of claim 1 wherein the fire resistant material forms a blanket having a width in the range of 3 to 5 inches.

8 . The ridge vent of claim 1 wherein the ridge vent is made from polypropylene and the fire resistant material is attached to the bottom surface of the top wall by heat welding.

9 . A vent installation comprising:
a roof having a ridge opening with a first width; a ridge vent including:
a ridge vent body having a top wall and an air flow path formed through the vent body; and
a fire resistant blanket adjacent the top wall and positioned above the ridge opening, the fire resistant material having a second width that is greater than the first width;
wherein, in a first position, the fire resistant blanket is not in the air flow path.

10 . The vent installation of claim 9 wherein the fire resistant material moves to a second position that covers the ridge opening when the ridge vent is exposed to heat exceeding at least 260 deg. F.

11 . The vent installation of claim 10 wherein the fire resistant material moves to a second position that covers the ridge opening when the ridge vent is exposed to heat exceeding the melting point of polypropylene.

12 . The vent installation of claim 9 wherein the ridge vent is UL Class A fire rated.

13 . A method of venting an attic and protecting the attic from exposure to fire, comprising:
installing a ridge vent having a fire resistant material over an opening at the ridge of a roof covering the attic; routing air from the attic through ridge vent; and covering the opening with the fire resistant material in response to the ridge vent being exposed to excessive heat.

14 . The method of claim 13 wherein covering the opening with a fire resistant material further comprising lowering a fire resistant blanket onto the opening.

15 . The method of claim 13 wherein covering the opening with a fire resistant material further comprising melting or plastically deforming at least a portion of the ridge vent.

16 . The method of claim 13 wherein excessive heat is heat exceeding at least 260 deg. F.

17 . The method of claim 13 wherein the ridge vent includes a top wall spaced apart from the ridge opening and the fire resistant material is attached to the top wall.

18 . The method of claim 17 wherein covering the opening with a fire resistant material further comprising detaching the fire resistant material from the top wall.

19 . The method of claim 13 wherein covering the opening with the fire resistant material block fire and molten plastic from entering the opening in the ridge.

Assignees

• Owens Corning Intellectual Capital Llc

Inventors

• Grubka Lawrence J

Classifications

• F24F2221/16

  mounted on the roof · CPC title

• F24F7/02

  Roof ventilation (ventilation of roof coverings E04D) · CPC title

• E04B1/941 Primary

  Building elements specially adapted therefor · CPC title

• E04D13/174 Primary

  on the ridge of the roof · CPC title

• E04B7/022 Primary

  consisting of a plurality of parallel similar trusses or portal frames · CPC title