A ventilated roof features an elongated vent having a vent opening and an elongated vent shingle supporting surface. The vent opening is in fluid communication with a slot defined by the top surface of a roof deck and communicating through the roof deck. An end cap has an end cap shingle supporting surface and is located adjacent to an end of the elongated vent. The vent and the end cap adjacent to the vent are supported in an equivalent spaced-apart relation to the top surface of the roof deck. The elongated vent shingle supporting surface, the end cap shingle supporting surface and the top surface of the roof deck provide a substantially continuous support to a shingle overlapping any two of those elements.
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0. 39. A tapered end cap for use with an elongated vent on a pitched roof, the elongated vent defining a vent shingle-supporting surface, the elongated vent and the vent shingle-supporting surface having an uphill side, a downhill side and a first end, the shingle-supporting surface at the downhill side being in a spaced apart relation to the roof, the shingle-supporting surface at the uphill side being in a close relation to the roof, the elongated vent at the downhill side defining a vent air intake or exhaust, the vent air intake or exhaust being in fluid communication through the roof, the tapered end cap comprising: an end cap shingle-supporting surface having a first edge and a second edge, said first and said second edges in combination defining a first corner, a one of said first edge and said second edge being configured to be located adjacent to the first end of the elongated vent at the downhill side of said elongated vent when the tapered end cap is installed on the roof, said first corner being in a spaced-apart relation to the roof when the tapered end cap is installed on the roof, said spaced apart relation of said first corner to the roof being equivalent to the spaced apart relation of the downhill side of said vent shingle-supporting surface to the roof, said first edge and said second edge each having an end opposite to said first corner, each of said first edge and said second edge opposite to said first corner being configured to be in the close relation to the roof when the tapered end cap is installed on the roof, said first and second edges each defining an edge length, each of said first and second edges is configured to define an included angle with respect to the roof for at least one location along said edge length of said first edge and said second edge when the tapered end cap is installed on the roof, said angle being acute at said at least one location, said end cap shingle-supporting surface being configured to support a shingle spanning the vent shingle-supporting surface and said end cap shingle-supporting surface when the tapered end cap is installed on the roof, wherein said shingle is supported by said elongated vent shingle-supporting surface and said end cap shingle-supporting surface.
1. A ventilated roof apparatus, the apparatus comprising:
a. a roof deck, said roof deck being pitched, said roof deck having a top surface, said top surface defining an opening, said opening communicating through said roof deck;
b. an elongated vent, said elongated vent engaging said top surface of said roof deck, said elongated vent having a length in a horizontal direction, said elongated vent having a width normal to said horizontal direction and parallel to said top surface of said roof deck, said length being greater than said width, said elongated vent comprising a vent shingle-supporting surface, said elongated vent and said vent shingle-supporting surface having an uphill side, a downhill side, a first end and a second end, said downhill side of said vent shingle-supporting surface being in a spaced-apart relation to said roof deck, said downhill side of said elongated vent defining a vent air inlet or exhaust, said elongated vent defining an interior volume, said vent air inlet or exhaust communicating with said opening through said interior volume, said uphill side of said vent shingle-supporting surface being in a close relation to said top surface of said roof deck;
c. an end cap, said end cap comprising an end cap shingle-supporting surface having a first edge and a second edge, said first and said second edges in combination defining a first corner, a one of said first edge and said second edge being located adjacent to said first end of said elongated vent, said first corner being located adjacent to said downhill side of said elongated vent, said first corner being in said spaced-apart relation to said roof deck, said spaced apart relation of said first corner to said roof deck being equivalent to said spaced apart relation of said downhill side of said vent shingle supporting surface to said roof deck, said first edge and said second edge each having an end opposite to said first corner, said end of each of said first edge and said second edges opposite to said first corner being in said close relation to said top surface of said roof deck, said first edge and said second edge each defining an edge length, each of said first and second edges defining an included angle with respect to said top surface of said roof deck at at least one location along said edge length of said first edge and said second edge, said angle being acute at said at least one location;
d. a shingle, said shingle spanning said vent shingle supporting surface and said end cap shingle supporting surface, said shingle being supported by said vent cap shingle supporting surface and said end cap shingle supporting surface.
16. A method for ventilating a structure, the method comprising:
a. preparing an opening, said opening being defined by a roof deck, said roof deck being pitched, said roof deck having a top surface, said opening communicating through said roof deck;
b. providing an elongated vent, said elongated vent engaging said top surface of said roof deck, said elongated vent having a length in a horizontal direction, said elongated vent having a width normal to said horizontal direction and parallel to said top surface of said roof deck, said length being greater than said width, said elongated vent comprising an elongated vent shingle-supporting surface, said elongated vent and said vent shingle-supporting surface having an uphill side, a downhill side, a first end and a second end, said downhill side of said elongated vent shingle-supporting surface being in a spaced-apart relation to said top surface of said roof deck, said downhill side of said elongated vent defining a vent air inlet or exhaust, said elongated vent defining an interior volume, said vent air intake inlet or exhaust communicating with said opening through said interior volume, said uphill side of said vent shingle-supporting surface being in a close relation to said roof deck;
c. providing an end cap, said end cap comprising an end cap shingle-supporting surface having a first edge and a second edge, said first and said second edges in combination defining a first corner, a one of said first edge and said second edge being located adjacent to said first end of said elongated vent, said first corner being located adjacent to said downhill side of said elongated vent, said first corner being in said spaced-apart relation to said roof deck, said spaced apart relation of said first corner to said roof deck being equivalent to said spaced apart relation of said downhill side of said elongated vent shingle supporting surface to said roof deck, said first edge and said second edge each having an end opposite to said first corner, said end of each of said first edge and said second edge opposite to said first corner being in said close relation to said top surface of said roof deck, said first edge and said second edge each defining an edge length, each of said first and second edges defining an included angle with respect to said top surface of said roof deck at at least one location along said edge length of said first edge and said second edge, said angle being acute at said at least one location;
d. providing a shingle, said shingle spanning said uphill side of said vent shingle supporting surface and said end cap shingle supporting surface, said shingle being supported by said vent shingle supporting surface and said end cap shingle supporting surface.
2. The ventilated roof apparatus of
3. The ventilated roof apparatus of
4. A ventilated roof apparatus, the apparatus comprising:
a. a roof deck, said roof deck being pitched, said roof deck having a top surface, said top surface defining an opening, said opening communicating through said roof deck;
b. an elongated vent, said elongated vent engaging said top surface of said roof deck, said elongated vent having a length in a horizontal direction, said elongated vent having a width normal to said horizontal direction and parallel to said top surface of said roof deck, said length being greater than said width, said elongated vent comprising a vent shingle-supporting surface, said elongated vent and said vent shingle-supporting surface having an uphill side, downhill side, a first end and a second end, said downhill side of said vent shingle-supporting surface being in a spaced-apart relation to said roof deck said downhill side of said elongated vent defining a vent air inlet or exhaust, said elongated vent defining an interior volume, said vent air inlet or exhaust communicating with said opening through said interior volume, said uphill side of said vent shingle-supporting surface being in a close relation to said top surface of said roof deck;
c. an end cap, said end cap comprising an end cap shingle-supporting surface having a first edge and a second edge, said first and said second edges in combination defining a first corner, a one of said first edge and said second edge being located adjacent to said first end of said elongated vent, said first corner being located adjacent to said downhill side of said elongated vent, said first corner being in said spaced-apart relation to said roof deck, said spaced apart relation of said first corner to said roof deck being equivalent to said spaced apart relation of said downhill side of said vent shingle supporting surface to said roof deck, said first edge and said second edge each having an end opposite to said first corner said end of each of said first edge and said second edges opposite to said first corner being in said close relation to said top surface of said roof deck;
d. a shingle, said shingle spanning said vent shingle supporting surface and said end cap shingle supporting surface, said shingle being supported by said vent cap shingle supporting surface and said end ca shingle supporting surface wherein said one of said first edge and said second edge has an edge length, said edge length of said one of said first and said second edges is equal to said width of said elongated vent and The ventilated roof apparatus of claim 1 wherein said edge length of said first edge is equal to said edge length of said second edge.
5. The ventilated roof apparatus of
6. The ventilated roof apparatus of
7. The ventilated roof apparatus of
8. The ventilated roof apparatus of
9. The ventilated roof apparatus of
10. The ventilated roof apparatus of
a. a first intermediate support located along said first edge between said first corner and said end of said first edge opposite to said first corner;
b. a second intermediate support located along said second edge between said first corner and said end of said second edge opposite to said first corner.
11. The ventilated roof apparatus of
12. The ventilated roof apparatus of
13. The ventilated roof apparatus of
14. The ventilated roof apparatus of
15. The ventilated roof apparatus of
17. The method of
18. The method of
19. The method of
20. The method of
21. The method of
22. The method of
23. The method of
24. The method of
25. The method of
26. The apparatus of
27. A ventilated roof apparatus, the apparatus comprising:
a. a roof deck, said roof deck being pitched, said roof deck having a top surface, said top surface defining an opening, said opening communicating through said roof deck;
b. an elongated vent, said elongated vent engaging said top surface of said roof deck, said elongated vent having a length in a horizontal direction, said elongated vent having a width normal to said horizontal direction and parallel to said top surface of said roof deck, said length being greater than said width, said elongated vent comprising a vent shingle-supporting surface, said elongated vent and said vent shingle-supporting surface having an uphill side, downhill side, a first end and a second end, said downhill side of said vent shingle-supporting surface being in a spaced-apart relation to said roof deck said downhill side of said elongated vent defining a vent air inlet or exhaust, said elongated vent defining an interior volume, said vent air inlet or exhaust communicating with said opening through said interior volume, said uphill side of said vent shingle-supporting surface being in a close relation to said top surface of said roof deck;
c. an end cap, said end cap comprising an end cap shingle-supporting surface having a first edge and a second edge, said first and said second edges in combination defining a first corner, a one of said first edge and said second edge being located adjacent to said first end of said elongated vent, said first corner being located adjacent to said downhill side of said elongated vent, said first corner being in said spaced-apart relation to said roof deck, said spaced apart relation of said first corner to said roof deck being equivalent to said spaced apart relation of said downhill side of said vent shingle supporting surface to said roof deck said first edge and said second edge each having an end opposite to said first corner said end of each of said first edge and said second edges opposite to said first corner being in said close relation to said top surface of said roof deck;
d. a shingle, said shingle spanning said vent shingle supporting surface and said end cap shingle supporting surface, said shingle being supported by said vent cap shingle supporting surface and said end cap shingle supporting surface The ventilated roof apparatus of claim 1 wherein said first edge and said second edge each defining an edge length, each of said first and second edges defining an included angle with respect to said top surface of said roof deck at each location along said edge length of said first edge and said second edge, said angle being acute at each location along said edge length of said first edge and said second edge.
28. The apparatus of
29. The ventilated roof apparatus of
30. The ventilated roof apparatus of
31. The ventilated roof apparatus of
33. The ventilated roof apparatus of
34. The ventilated roof apparatus of
35. The ventilated roof apparatus of
36. The ventilated roof apparatus of
38. The ventilated roof apparatus of
0. 40. The tapered end cap of claim 39 wherein said end cap shingle-supporting surface is configured to support one or more shingles spanning the elongated vent shingle-supporting surface and the roof at the first end of the elongated vent and to substantially prevent a breakage of said one or more shingles due to a change in elevation of said one or more shingles between the vent shingle-supporting surface and the roof in an ordinary and expected use.
0. 41. The tapered end cap of claim 39 wherein said one of said first edge and said second edge has an edge length, said edge length of said one of said first and said second edges is equal to said width of said elongated vent.
0. 42. The tapered end cap of claim 39 wherein said edge length of said first edge is equal to said edge length of said second edge.
0. 43. The tapered end cap of claim 39 wherein an other of said first and said second edges is in said spaced apart relation to the roof, said spaced-apart relation of said other of said first and said second edges to the roof descending in elevation from said first corner to said other end of said other of said first and said second edges, said spaced-apart relation of said other of said first and said second edges and the roof defining an end cap air inlet or exhaust, said end cap air inlet or exhaust being configured for fluid communication through the roof when the end cap is installed on the roof.
0. 44. The tapered end cap of claim 39 wherein the end cap is a one of a pair of end caps, said other of said pair of end caps being configured to be located adjacent to a second end of said elongated vent, wherein the end caps of said pair of said end caps are configured to be interchangeable one for the other.
0. 45. The tapered end cap of claim 39 wherein the end cap further comprises: a base, said base and said end cap shingle-supporting surface being molded from a polymer, said base being attached to said end cap shingle-supporting surface, said base being configured to engage the roof, said base supporting said end cap shingle-supporting surface.
0. 46. The tapered end cap of claim 39 wherein the end cap further comprises: a first corner support configured to support said first corner is said spaced-apart relation to said top surface of the roof.
0. 47. The tapered end cap of claim 46 wherein the end cap further comprises:
a. a first intermediate support located along said first edge between said first corner and said end of said first edge opposite to said first corner;
b. a second intermediate support located along said second edge between said first corner and said end of said second edge opposite to said first corner.
0. 48. The tapered end cap of claim 47 wherein said first intermediate support and said first corner support define a first channel, said second intermediate support and said first corner define a second channel, a one of said first and said second channels defining an end cap air inlet or exhaust, said end cap inlet or exhaust being configured to be in fluid communication through the roof when said first edge is located adjacent to said first end of said elongated vent and when said second edge is located adjacent to said second end of said elongated vent.
0. 49. The tapered end cap of claim 48 wherein a one of said first and said intermediate supports is proximal to said first corner and an other of said first and said second intermediate supports is proximal to said end of said first or said second edge opposite to said first corner, said one of said first and said second intermediate supports proximal to said first corner supporting said end cap shingle-supporting surface at a greater spaced apart relation to said top surface of the roof than said other of said first and said second intermediate supports.
0. 50. The tapered end cap of claim 43 wherein an other of said first and said second edges is in said spaced apart relation to the roof when the end cap is installed on the roof, said spaced-apart relation of said other of said first and said second edge and the roof does not define an end cap air inlet or exhaust.
0. 51. The tapered end cap of claim 39 wherein the end cap is integral to said elongated vent.
0. 52. The tapered end cap of claim 39 wherein the end cap is composed of a material selected from a list consisting of plastic, a metal, a wood, a wire and a fiber.
0. 53. The tapered end cap of claim 39 wherein said end cap shingle-supporting surface defines an at least one other edge opposite to said first corner, said at least one other edge being in said close relation to the roof when the end cap is installed on the roof, said end cap shingle-supporting surface being configured to provide support to said shingle between said end of said elongated vent and said top surface of the roof to prevent a failure of said shingle due to a lack of support in an ordinary and expected use.
0. 54. The tapered end cap of claim 39 wherein said first edge and said second edge each defining an edge length, each of said first and second edges defining an included angle with respect to said top surface of the roof at each location along said edge length of said first edge and said second edge, said angle being acute at each location along said edge length of said first edge and said second edge.
0. 55. The tapered end cap of claim 39 wherein said first corner and said end cap shingle-supporting surface defining generally a hypotenuse of a right triangle, said right triangle having a first leg and a second leg, said first leg being parallel to the roof when the end cap is installed on the roof, said second leg being normal to the roof when the end cap is installed on the roof, said first leg being longer than said second leg.
0. 56. The tapered end cap of claim 39 wherein said end cap shingle-supporting surface defines a taper between said first corner and said other end of said first edge and defining said taper between said first corner and said other end of said second edge, said taper being selected to support said shingle between said first end of said elongated vent and the roof when the end cap is installed on the roof.
0. 57. The tapered end cap of claim 56 wherein said taper between said first corner and said other end of said first edge is substantially equal to said taper between said first corner and said other end of said second edge.
0. 58. The tapered end cap of claim 57 wherein said taper is selected to substantially prevent a breakage of said one more shingles due to a change in elevation of said one or more shingles between said vent shingle-supporting surface and the roof when the end cap is installed on the roof.
0. 59. The tapered end cap of claim 56 wherein said taper defines a curve.
0. 60. The tapered end cap of claim 55 wherein one or both of said first edge and said second edge defines a curve.
0. 61. The tapered end cap of claim 39 wherein one or both of said first edge and said second edge defines a curve or is substantially straight.
0. 62. The tapered end cap of claim 56 wherein the end cap does not define an air inlet or exhaust.
0. 63. The tapered end cap of claim 55 wherein the end cap does not define an air inlet or exhaust.
0. 64. The tapered end cap of claim 39 wherein the end cap defines an air inlet or exhaust.
0. 65. The tapered end cap of claim 39 wherein the end cap does not define an air inlet or exhaust.
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A. Field of the Invention
The Invention relates to the field of roof ventilation and particularly to ventilation of a roof through the upper side of the roof deck. The Invention is an above-the-deck ventilated roof featuring an end cap.
B. Description of the Related Art
The portion of a building roof that is exposed to the elements is protected by a durable, weather-resistant surface, such as shingles. As used in this document, the term ‘shingle’ means tab shingles, architectural shingles, cementatious shingles, metal shingles, slate, sheet metal, tar paper, roll roofing, ceramic tile roofing, wood shakes, synthetic versions of any of the above and any other weather proofing product that may be applied to a pitched roof.
The shingles are supported by a roof deck. As used in this document, a ‘roof deck’ means the generally planar structural covering the upper side of a building and providing support for shingles. The ‘roof deck’ usually is composed of wood in the form of plywood sheets or dimensioned lumber. The term ‘roof deck’ also may include other roofing materials previously applied to the plywood or dimensioned lumber, such as tar paper, ice and water shields, and shingles.
The roof deck has a pitch from the lower edge of the roof to the peak of the roof so that water and snow will fall from the roof. When shingles are applied to a roof deck, the shingles proximal to the lower edge of the roof are applied first and attached to the deck. Each subsequent course of shingles proceeding from the lower edge to the peak of the roof overlaps the preceding course so that water running from each shingle flows onto the top of the adjacent downhill shingle. The shingles cooperate to form a composite surface that is tight to rain water and snow melt.
Ventilation of the space under the roof is important to reduce condensation and the resulting moisture damage to the roof and to the building structure. Ventilation also serves to allow air heated by solar gain to escape from the space under the roof, reducing the cooling load on the building.
To ventilate a roof, air must both enter and leave the space under the roof. Because air under the roof is heated by solar gain and because heated air rises, the exit for air from a space under a roof usually is a vent located in a wall or a ridge vent located at the peak of the roof. Air entering the space under the roof may enter through vents installed in a soffit; that is, the underside of the portion of a roof overhanging the exterior walls of the building. Historically, the roofs of many buildings effectively were not ventilated because the buildings lacked soffits and had little or no way for air to enter the space under the roof.
An apparatus to allow air to ventilate the space under a building roof is addressed by U.S. Pat. Nos. 6,212,833 and 6,447,392 issued Apr. 10, 2001 and Sep. 10, 2002, respectively, to the inventor of the present Invention. The '833 and '392 patents address above-the-deck roof ventilation. The teachings of U.S. Pat. Nos. 6,212,833 and 6,447,392 are incorporated by reference as if set forth in full herein.
In the roof ventilation apparatus and system taught by the '392 and '833 patents, the air inlet or exhaust for a roof is an elongated vent located on the upper side of the roof deck. The elongated vent includes a vent shingle support. The vent shingle support has a width and a length that is large compared to its thickness. The vent shingle support has a downhill side and an uphill side. The downhill side of the vent shingle support is supported in a spaced-apart relation with the roof deck, the space between the roof deck and the vent shingle support at the downhill side defines the air intake. The air intake communicates through the interior volume of the elongated vent to a slot defined by the roof deck. The slot communicates with the space under the roof.
In use, air enters the air intake defined by the space between the downhill side of the vent shingle support and the roof deck. The air passes between the elongated vent shingle support and the roof deck, and passing through the slot defined by the roof deck into the space under the roof.
The uphill side of the vent shingle support is not spaced apart from the roof deck. When shingles are applied to the roof, the shingles are applied to the elongated vent shingle support and to the roof deck to the uphill side of the elongated vent shingle support so that the shingles overlap both the vent shingle support and the roof deck uphill from the vent shingle support. The shingles covering the elongated vent and the roof deck form the continuous, rain and snow melt-tight surface.
A potential issue with respect to the prior art above-the-deck roof vents occurs at either end of the elongated vent if the elongated vent is not properly installed. If the elongated vent is terminated at a location other than the gable edge of the roof deck, the shingles overlapping the end of the elongated vent are supported by the vent shingle support, but are not supported by the deck adjacent to the vent shingle support due to the spaced-apart relation between the vent shingle support and the roof deck at the downhill side of the elongated vent. The lack of support by the roof deck at the end of the incorrectly-installed elongated vent can result in failure of the shingles adjacent to the end of the elongated vent.
The prior art above-the-deck roof vent may be terminated at a valley formed by the intersection of two roof decks. Proper installation of the prior art elongated vent in this circumstance is to trim the end of the vent to conform to the valley, which fully supports shingles overlapping the end of the elongated vent. If the elongated vent is not trimmed in this circumstance, the shingles overlapping the end of the elongated vent are not supported and may fail.
The potential failure of an improperly installed roof vent adjacent to the end of the vent is a characteristic of all current above-the-deck roof ventilation systems.
The Invention is an end cap for an above-the-deck roof ventilation system. The Invention also is a roof that includes the end cap. The end cap of the Invention features an end cap shingle supporting surface. The end cap is configured to be located at the end of a prior art elongated vent. The end cap of the Invention is configured to provide support to shingles overlapping the end of the elongated vent and to prevent failure of the overlapping shingles. Using the end cap, the elongated vent may be installed anywhere on the roof deck and need not extend to the gable edge of the deck or to a valley caused by intersection of two roof decks.
While the end cap may be used in conjunction with an elongated vent at the roof edge, the elongated vent and end cap also may be used proximal to the peak of the roof deck to exhaust air from the area under the roof. The end cap and elongated vent also may be placed in at any location on the roof deck at which ventilation is desired intermediate between the roof edge and the peak of the roof.
The end cap has an end cap shingle supporting surface. The end cap shingle supporting surface has a length. The end cap shingle supporting surface has a first edge, a second edge and a first corner. The first corner is defined by an intersection of the first and second edges. The end cap shingle supporting surface at the first corner is supported in a spaced-apart relation to the roof deck. The spaced apart relation between the end cap shingle supporting surface at the first corner and the roof deck is equivalent, as defined below, to the spaced apart relation between the downhill side of the vent shingle supporting surface and the roof deck.
The end cap is configured so that when the first edge is installed adjacent to the end of the elongated vent with the first corner adjacent to the downhill side of the elongated vent, the separation between the top surface of the roof deck and the first edge is equivalent to the separation between the top surface of the roof deck and the vent shingle supporting surface immediately adjacent to the first edge at each location along the length of the first edge.
The end cap is further configured so that when the second edge is installed adjacent to the other end of the elongated vent with the first corner adjacent to the downhill side of the elongated vent, the separation between the roof deck and the second edge is equivalent to the separation between the top surface of the roof deck and the vent shingle supporting surface immediately adjacent to the second edge at each location along the length of the second edge.
As used in this document, the term “equivalent” means that the difference in elevation above the top surface of the roof deck of the vent shingle supporting surface and the immediately adjacent end cap shingle supporting surface is adequately small that a shingle spanning both the vent shingle support and the end cap shingle support is not subject to stresses due to the difference in elevation that would cause failure of the shingle in ordinary and expected use. Although the acceptable difference in elevation above the roof deck will vary with the strength of the shingle used to span the different elevations, the applicant believes that a difference in elevation of 3/16 inches is acceptable in practice.
Each of the first and second edges has a length. The length of the first or second edge of the end cap adjacent to the end of the elongated vent is selected to correspond to the width of the vent shingle supporting surface. The end cap may be reversible and may be used at either end of the elongated vent, in which event the lengths of the first and second edge are equal one to the other and both are equal to the width of the elongated vent. Each of the first and second edges of the end cap shingle supporting surface has an end opposite to the first corner. The ends of the first and second edges opposite to the first corner are in a ‘close relation,’ as defined below, to the roof deck. The remainder of the periphery of the end cap shingle supporting surface that is not defined by the first and second edges (the ‘other edge’ or ‘other edges’) also is in a close relation to the roof deck. As used in this document, the term ‘close relation’ means that the difference in elevation between the top surface of the roof deck and the end cap shingle supporting surface at the ends of the first and second edges opposite to the first corner and at the ‘other edge’ is adequately small that a shingle may overlap the end cap and roof deck without risk of failure of the shingle due to the difference in elevation in ordinary and expected use. As stated above, a difference in elevation of 3/16 inches has proven suitable in practice.
An end cap may be joined to another end cap or to an elongated vent for manufacture, transportation, sale or installation. For example, two end caps may be manufactured as a unit. During installation, the end user cuts the two end caps apart and installs the end caps at either or both ends of an elongated vent on a roof deck. As a second example, one or two end caps may be manufactured as a unit along with an elongated vent. The end user can install the elongated vent and integral end cap or caps on the roof deck. Alternatively, the end user can cut one or both of the end caps from the elongated vent for installation on the roof deck.
The end cap may include an end cap air vent, the inlet to the air vent being defined by the spaced-apart relation between the first or second edges and the top surface of the roof deck; alternatively, the end cap may not include air vents. The air vents may communicate with the slot defined by the top surface of the roof deck.
The end cap may or may not include an end cap air vent and may or may not communicate with the opening communicating through the roof deck. Any construction of the end cap that supports the end cap shingle supporting surface at a suitable elevation above the roof deck at the first corner and that does not support the ‘other edge or other edges’ in a spaced apart relation to the roof deck is contemplated by the invention. For example, the end cap may be a solid piece of a plastic, foam, metal or wood and not allow communication with the opening communicating through the roof deck. As a second example, the end cap may be a hollow injection-molded plastic part that does not allow communication with the opening in the roof deck. As a third example, the end cap may be a hollow plastic part that defines an end cap air intake opening and that does communicate through the interior volume of the end cap to the opening in the roof deck. The end cap may be composed of any suitable material.
The end cap may be composed of a plastic and may comprise the end cap shingle supporting surface, a first corner support supporting the first corner and secondary supports intermediate between the first corner support and the ends of the first and second edges opposite to the first corner. The intermediate supports may define channels from the air inlet to the slot defined by the roof deck when the end cap is installed on a roof.
The end cap may be injection molded as a lower portion and an upper portion, the lower portion being configured to engage the roof deck, the upper portion defining the end cap shingle supporting surface. The injection molded upper and lower portions maintain the shape of the end cap and conform the first and second edges to the shape of the end of the elongated vent.
FIG. FIGS. 24 through 32, the other edge 66 along with first and second edges 56, 58 can define any suitable shape in plan, such as a quadrant, rectangle, square, triangle, or other polygon.
In describing the above embodiments of the invention, specific terminology was selected for the sake of clarity. However, the invention is not intended to be limited to the specific terms so selected, and it is to be understood that each specific term includes all technical equivalents that operate in a similar manner to accomplish a similar purpose.
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