Roof vent for venting a building enclosure

Abstract

There is disclosed a vent for venting a building enclosure. The vent comprises a base, a cover and at least one attachment structure configured to attach the cover to the base. The base has an attachment element for attaching the base to the building enclosure and an aperture in the base to permit gas to pass in and out of the building enclosure therethrough. The cover, which is for covering the aperture, has a first cover portion and a second cover portion which are angled relative to one another. The at least one attachment structure is carried by both the first and second cover portions.

1 . A vent for venting a building enclosure, the vent comprising:
 a base comprising an attachment element for attaching the base to said building enclosure and an aperture to permit gas to pass in and out of said building enclosure through said base;   a cover for covering the aperture, the cover having a first cover portion and a second cover portion, the first and second cover portions being angled relative to one another; and   at least one attachment structure configured to attach the cover to the base, the attachment structure being carried by both the first and second cover portions.   
   
   
       2 . A vent for venting a building enclosure as claimed in  claim 1 , wherein the first cover portion comprises a top portion of said cover. 
   
   
       3 . A vent for venting a building enclosure as claimed in  claim 2 , wherein the second cover portion comprises a side portion of said cover. 
   
   
       4 . A vent for venting a building enclosure as claimed in  claim 1 , wherein the base comprises sides configured to face sideways along a sloped roof, and at least one non-side portion. 
   
   
       5 . A vent for venting a building enclosure as claimed in  claim 4 , wherein the at least one attachment structure is positioned at the at least one non-side portion such that the at least one attachment structure does not interfere with overlapping of shingles at said sides. 
   
   
       6 . A vent for venting a building enclosure as claimed in  claim 5 , wherein the at least one attachment structure comprises a first attachment member attached to said cover, and a second attachment member attached to said base and positioned at the at least one non-side portion, said first and second attachment members being configured to register with one another. 
   
   
       7 . A vent for venting a building enclosure as claimed in  claim 6 , wherein the at least one non-side portion includes an upward portion configured to face upward along the sloped roof, and a downward portion configured to face downward along the sloped roof. 
   
   
       8 . A vent for venting a building enclosure as claimed in  claim 7 , wherein the vent comprises four attachment structures, two of the attachment structures being positioned at said upward portion and the other two being positioned at said downward portion. 
   
   
       9 . A vent for venting a building enclosure as claimed in  claim 7 , wherein the vent further comprises a liquid deflector, positioned at said upward portion, for deflecting liquid flowing downward along said sloped roof, the liquid deflector having a smoothly curved shape to facilitate the cutting of shingles to match said shape. 
   
   
       10 . A vent for venting a building enclosure as claimed in  claim 4 , wherein the at least one non-side portion includes an upward portion configured to face upward along the sloped roof, and a downward portion configured to face downward along the sloped roof, the sides, upward portion and downward portion defining a vent structure sized and shaped to prevent unwanted material from entering into said building enclosure. 
   
   
       11 . A vent as claimed in  claim 10 , wherein the vent structure includes a screen to block unwanted material from entering said aperture. 
   
   
       12 . A vent for venting a building enclosure as claimed in  claim 11 , further comprising at least one louver attached to said vent structure for preventing precipitation entering under the cover from entering the aperture. 
   
   
       13 . A vent for venting a building enclosure as claimed in  claim 12 , wherein the at least one louver is removably attached to said vent structure. 
   
   
       14 . A vent for venting a building enclosure as claimed in  claim 13 , wherein the at least one louver is attached to said vent structure by way of a friction fit coupling of a portion of the louver to a complementary portion of the vent structure. 
   
   
       15 . A vent for venting a building enclosure as claimed in  claim 4 , wherein the sides are spaced apart by one standard shingle tab width. 
   
   
       16 . A vent for venting a building enclosure as claimed in  claim 15 , wherein the sides are spaced about 20.3 centimeters apart. 
   
   
       17 . A vent for venting a building enclosure, the vent comprising:
 a base comprising an attachment element for attaching the base to said building enclosure and an aperture to permit gas to pass in and out of said building enclosure through said base, wherein the base includes sides configured to face sideways along a sloped roof, and at least one non-side portion;   a cover for covering the aperture; and   at least one attachment structure comprising an attachment member and a corresponding attachment receptacle for attaching the base and the cover, the attachment member being carried by one of the base and the cover, and the attachment receptacle being carried by the other of the base and the cover;   wherein one of the attachment member and the attachment receptacle that is carried by the base is positioned at said non-side portion.   
   
   
       18 . A vent for venting a building enclosure as claimed in  claim 17 , wherein the at least one non-side portion includes an upward portion configured to face upward along the sloped roof, and a downward portion configured to face downward along the sloped roof. 
   
   
       19 . A vent for venting a building enclosure as claimed in  claim 18 , wherein the vent comprises four attachment structures, two of the attachment structures being positioned at said upward portion and the other two being positioned at said downward portion. 
   
   
       20 . A vent for venting a building enclosure as claimed in  claim 19 , wherein the vent further comprises a liquid deflector, positioned at said upward portion, for deflecting liquid flowing downward along said sloped roof, the liquid deflector having a smoothly curved shape to facilitate the cutting of shingles to match said shape. 
   
   
       21 . A vent for venting a building enclosure as claimed in  claim 18 , wherein the sides, upward portion and downward portion define a vent structure sized and shaped to prevent unwanted material from entering into said building enclosure. 
   
   
       22 . A vent as claimed in  claim 21 , wherein the vent structure includes a screen to block unwanted material from entering said aperture. 
   
   
       23 . A vent for venting a building enclosure as claimed in  claim 21 , further comprising at least one louver attached to said vent structure for preventing precipitation entering under the cover from entering the vent structure. 
   
   
       24 . A vent for venting a building enclosure as claimed in  claim 23 , wherein the at least one louver is removably attached to said vent structure. 
   
   
       25 . A vent for venting a building enclosure as claimed in  claim 24 , wherein the at least one louver is attached to said vent structure by way of a friction fit coupling of a portion of the louver to a complementary portion of the vent structure. 
   
   
       26 . A vent for venting a building enclosure as claimed in  claim 17 , wherein the sides are spaced apart by one standard shingle tab width. 
   
   
       27 . A vent for venting a building enclosure as claimed in  claim 26 , wherein the sides are spaced apart about 20.3 centimeters.