| 摘要 |
A roof vent for ventilating a sloped roof of a building via a hole in the roof to atmosphere. The roof vent includes a flange portion for affixing on the roof, the flange portion having an opening in communication with the hole in the roof. The roof vent also includes a wall surface extending upwardly from the flange portion and extending around a perimeter of the opening to inhibit precipitation travelling along the flange portion from entering the opening and a cap having a first face for directing towards a peak of the roof, a second face opposite the first face, two opposing faces each connecting the first face to the second face, and a cover surface extending in a region between the first face, the second face and the two opposing side faces for inhibiting precipitation from entering the opening, the cap being supported by at least one support member and dimensioned to cover over the opening while providing a gap between the flange portion and one or more of the faces for facilitating passage of the atmosphere between the wall surface and the one or more of the faces; and the first face having a first surface connecting the two opposing side faces, the first surface extending from the cover surface towards the flange portion, wherein at least a portion of the first surface is curvilinear and the first surface is positioned outside a portion of the region between the two opposing faces. |
| 主权项 |
1. A roof vent for ventilating a sloped roof of a building via a hole in the roof to atmosphere, the roof vent comprising:
a flange portion for affixing on the roof, the flange portion having an opening in communication with the hole in the roof; a wall surface extending upwardly from the flange portion and extending around a perimeter of the opening to inhibit precipitation travelling along the flange portion from entering the opening; a cap having a first face for directing towards a peak of the roof, a second face opposite the first face, two opposing faces each connecting the first face to the second face, and a cover surface extending in a region between the first face, the second face and the two opposing side faces for inhibiting precipitation from entering the opening, the cap being supported by at least one support member and dimensioned to cover over the opening while providing a gap between the flange portion and one or more of the faces for facilitating passage of the atmosphere between the wall surface and the one or more of the faces; and the first face having a first surface connecting the two opposing side faces, the first surface extending from the cover surface towards the flange portion, wherein at least a portion of the first surface is curvilinear and the first surface is positioned outside a portion of the region between the two opposing faces. |
