Aspects of the invention provide a roof vent comprising a first portion, a second portion, a third portion, and a fourth portion. The second portion is connected to the first portion. The third portion is connected to the second portion and defines one or more openings therein. The fourth portion is connected to the third portion. In a first region of the roof vent when the first portion and the third portion are resting on a horizontal surface, the second portion angles upward away from the first portion and the third portion angles downward towards, but does not contact, the first portion so as to create a gap in a bottom of the roof vent in gaseous communication with the one or more openings. In a second region of the roof vent, the second portion is substantially coplanar with the first portion, and a part of the second portion is pressed directly against a part of the third portion, which is pressed directly against a part of the fourth portion.
1. A roof vent comprising:
a first portion;
a second portion, the second portion connected to the first portion;
a third portion, the third portion connected to the second portion and defining one or more openings therein; and
a fourth portion, the fourth portion connected to the third portion;
wherein, in a first region of the roof vent when the first portion and the third portion are resting on a horizontal surface, the second portion angles upward away from the first portion and the third portion angles downward towards, but does not contact, the first portion so as to create a gap in a bottom of the roof vent in gaseous communication with the one or more openings;
wherein, in a second region of the roof vent, at least some of the second portion is coplanar with the first portion, and a planar part of the second portion directly overlies a planar part of the third portion, which directly overlies a planar part of the fourth portion so that the three planar parts form a layered, folded edge.
2. The roof vent of claim 1 , wherein the first region encompasses a center of the roof vent.
3. The roof vent of claim 1 , wherein the second region encompasses a margin along an edge of the roof vent.
4. The roof vent of claim 1 , wherein the first portion, the second portion, the third portion, and the fourth portion consist of a single piece of material without joined seams.
5. The roof vent of claim 1 , wherein the roof vent comprises a metal.
6. The roof vent of claim 1 , wherein the one or more openings comprise a plurality of slits.
7. The roof vent of claim 1 , wherein the one or more openings comprise a plurality of slats.
8. The roof vent of claim 1 , wherein the first portion comprises a plurality of ridges.
9. The roof vent of claim 8 , wherein the plurality of ridges run parallel to one another.
10. The roof vent of claim 1 , wherein the second portion defines a plurality of ridges.
11. The roof vent of claim 10 , wherein the plurality of ridges run parallel to one another.
12. The roof vent of claim 1 , wherein the fourth portion defines a plurality of ridges.
13. The roof vent of claim 12 , wherein the plurality of ridges run parallel to one another.
14. The roof vent of claim 1 , further comprising a reinforcing element, the reinforcing element spanning between the second portion and the third portion.
15. A method for forming a roof vent, the method comprising the steps of:
(a) forming an assembly comprising:
(i) a first portion;
(ii) a second portion, the second portion connected to the first portion;
(iii) a third portion, the third portion connected to the second portion and defining one or more openings therein; and
(iv) a fourth portion, the fourth portion connected to the third portion;
(b) processing the assembly such that, in a first region of the roof vent when the first portion and the third portion are resting on a horizontal surface, the second portion angles upward away from the first portion and the third portion angles downward towards, but does not contact, the first portion so as to create a gap in a bottom of the roof vent in gaseous communication with the one or more openings; and
(c) processing the assembly such that, in a second region of the roof vent, at least some of the second portion is coplanar with the first portion, and a planar part of the second portion directly overlies a planar part of the third portion, which directly overlies a planar part of the fourth portion so that the three planar parts form a layered, folded edge.
16. The method of claim 15 , wherein step (a) comprises cutting out a rectangular portion of material.
17. The method of claim 15 , wherein step (a) comprises punching the one or more openings.
18. The method of claim 15 , wherein step (b) comprises bending.
19. The method of claim 15 , wherein step (c) comprises pressing.
20. The method of claim 15 , wherein the first portion, the second portion, the third portion, and the fourth portion consist of a single piece of material without joined seams.