Roof pipe flashing with side air attic vent
A roof pipe flashing with a rectangular shaped side air attic vent attached to a partial boot with a frusto-conical wall and a flat base for exhausting air from an attic into the outer atmosphere during warm or hot seasons in order to help reduce the internal house temperature during these seasons.
The present invention relates to the use of a roof pipe flashing for a roof vent pipe with a side air attic vent.
2. Description of the Related ArtRoof pipe flashings are conventionally used to support a vent pipe extending through and above the roof of a building. The purpose of vent pipes is to exhaust into the atmosphere undesirable air from various in-house facilities such as bathrooms. It is also well known, during warm seasons of the year, to exhaust hot air from the attic of a house or building into the outside atmosphere. There are very few structures or devices known in the art to eliminate or ameliorate both of these problems from the same device. U.S. Pat. No. 9,851,115 discloses a vent sealing device 10 including a flashing 62 and an outer tube 20 surrounding a vent pipe 12 wherein the outer tube 20 has breathing or ventilation holes 23 in one embodiment which allow additional venting to the sealing device 10 when needed or desired. However, this patent does not disclose the source of the air for which the breathing or ventilation holes are used. Furthermore, the vent sealing device of this patent is a tubular structure having a lead flashing for preventing squirrels and other rodents from damaging it with their claws and teeth quite unlike the structure and purpose of the roof pipe flashing of this invention.
SUMMARY OF THE INVENTIONThe purpose of this invention is to provide an attic air exhaust outlet for a roof pipe flashing such as disclosed, for example, in U.S. Pat. No. 9,724,836 or for other conventional roof pipe flashings having a bell-shaped boot. In order to accomplish this an air exhaust extension is provided to a bell-shaped boot of a roof pipe flashing. The subject matter for the materials and partial structure of the frusto-conical boot disclosed in the inventor's prior patent U.S. Pat. No. 9,724,836 are incorporated in full herein.
A substantially rectangular extension is provided to a roof pipe flashing such as disclosed in U.S. Pat. No. 9,724,836 which will be further described in detail below. The roof pipe flashing of this invention is positioned around an opening in the roof of a building and around a roof pipe extending therethrough and then secured to the roof of the building. However, the roof pipe flashing of this invention is not limited to the structure of the U.S. Pat. No. 9,724,836 but is also adaptable to other bell-shaped boots of roof pipe flashings known in the art.
It is an object of this invention to remove air from the attic of a building especially during warm or hot seasons of the year in order to help reduce the internal house temperature during these seasons.
Other objects and advantages of the use of the roof pipe flashing of this invention will become apparent upon reading the following description, of which the attached drawings form a part.
Shown in
The roof pipe flashing 1 of this invention may be secured to the pitched singled roof PSR of a building by, for example, nailing the rectangular flat base 5 onto the roof shingles as shown in
Although the front opening of the air attic vent 4 may be left unobstructed it is preferable to provide a front filter 10 to prevent debris, birds or animals from entering the front opening of the air attic vent 4 which obstacles would obstruct the flow of attic air into the outer atmosphere. A front filter 10a may be secured at the opening of the air attic vent 4 in the form of spaced circular holes such as shown in
As depicted in
Although the side air attic vent of this invention is rectangularly shaped it may also be shaped in other forms in order to provide for the escape or exhaust of attic air into the outer atmosphere.
Modifications of this invention will be readily apparent to those skilled in the art and it is intended that the invention be not limited by the embodiments disclosed herein but that the scope of the invention be defined by the appended claims.
Claims
1. A roof pipe flashing for a shingled pitched roof of a building for providing the out-flow or exhaust of attic air to the atmosphere comprising a boot having a substantially frusto-conical wall, said boot having a semi-closed top end and a semi-closed bottom end with a roof vent pipe passing through both said semi-closed bottom end and said semi-closed top end, said semi-closed bottom end being larger than said semi-closed top end, said semi-closed top end of said boot having an opening such as to provide a water tight frictional engagement with said roof vent pipe, said semi-closed bottom end having a substantially rectangular, elongated extension with three walls, a top wall and a pair of oppositely spaced walls connected to said top wall, said top wall and each of said oppositely spaced walls having an end connected near said semi-closed bottom end of said frusto-conical wall, and said boot and said elongated extension are supported on a substantially rectangular flat base such that said substantially rectangular, elongated extension provides an open elongated attic air passageway from said boot to said atmosphere.
2. A roof pipe flashing of claim 1 wherein said boot, said substantially rectangular, elongated extension and said rectangular flat base form a monolithic structure.
3. A roof pipe flashing of claim 1 wherein said substantially rectangular, elongated extension has a free end with a front edge not connected to said boot and said substantially rectangular flat support base has a front edge, said front edge of said elongated extension being in vertical alignment with said front edge of said flat support base.
4. A roof pipe flashing of claim 1 wherein said substantially rectangular elongated extension has an open front end with a front filter attached thereto and said front filter has plural openings therein with said plural openings selected from the group of circular openings, spaced slats and square openings.
5. A roof pipe flashing of claim 4 wherein some of said circular openings extend nearly down to said flat base but are only partially contiguous with said flat base in order to prevent rainwater from accumulating within said elongated extension.
6. A roof pipe flashing of claim 4 wherein some of said square openings extend nearly down to said flat base but are only partially contiguous with said flat base in order to prevent rainwater from accumulating within said elongated extension.
7. A roof pipe flashing of claim 4 wherein the bottom ends of said spaced slats extend nearly down to said flat base but are not contiguous with said flat base in order to prevent rainwater from accumulating within said elongated extension.
8. A roof pipe flashing of claim 4 wherein said front filter has an air mesh filter secured behind and in abutment with said front filter.
9. A roof pipe flashing of claim 1 wherein said boot, said elongated extension and said flat base are made from an elastomeric material.
10. A roof pipe flashing of claim 1 wherein said boot, said elongated extension and said flat base are made from metallic material.
11. A roof pipe flashing of claim 1 wherein said substantially frusto-conical wall has a short right-angle extension at said semi-closed bottom end of said substantially frusto-conical wall and adjacent said substantially rectangular, elongated extension.
12. At least one roof pipe flashing of claim 1 in combination with a pitched shingled roof having a gutter and an apex ridge, one of said roof pipe flashings being secured near said gutter of said roof and another of said roof pipe flashings being secured near said apex ridge in order to increase the out-flow of attic air to the atmosphere.
13. The roof pipe flashing of claim 12 wherein there are two spaced roof pipe flashings near said gutter and one roof pipe flashing near said apex ridge.
Type: Application
Filed: Jul 24, 2018
Publication Date: Jan 30, 2020
Inventor: William Ralph Bond (Manassas, VA)
Application Number: 15/998,252