One piece hip and ridge shingle
The invention provides a one piece shingle for use on roof ridges and hips. Shingles of the invention are preferably formed from synthetic materials and preferably comprise a blend of high and low molecular weight polyethylene resins. The unique blend of materials provides a shingle that is both strong while retaining sufficient flexibility to permit the shingle to bend to accommodate a variety of pitches at a ridge or hip. Unique features of the shape and structure of the shingle also make it particularly suited to hip and ridge applications. Furthermore, methods of manufacturing hip and ridge shingles are also disclosed.
1. A shingle for use on a roof hip or ridge, the shingle comprising:
(a) a front edge, a rear edge, a first side edge, and a second side edge, wherein the front edge, the rear edge, the first side edge, and the second side edge define an isosceles trapezoid;
(b) a ridge portion;
(c) a notch comprising a chamfer that diverges from the notch; and
(d) a plurality of ribs downwardly disposed from a bottom of the shingle; wherein the shingle is formed as a single unit and comprises sufficient flexibility to accommodate a range of pitches of roof hips and ridges.
2. The shingle of claim 1 further comprising an alignment indicator.
3. The shingle of claim 1 further comprising a plurality of support ribs downwardly disposed from a bottom of the shingle at or near a preferred fastener insertion point of the shingle.
4. The shingle of claim 1 wherein the notch further comprises a flat portion parallel to a top surface of the shingle.
5. The shingle of claim 1 wherein the angle of the notch is between approximately 30 degrees and approximately 60 degrees.
6. The shingle of claim 1 wherein the notch is in the front edge of the shingle and within the ridge portion of the shingle.
7. The shingle of claim 6 wherein the front edge comprises a front wall and wherein the notch is in the front wall of the shingle.
8. The shingle of claim 7 wherein the front edge comprises a front wall and wherein the notch is in the front wall of the shingle.
9. A shingle for use on a roof hip or ridge, the shingle comprising:
(a) a front edge, a rear edge, a first side edge, and a second side edge, wherein the front edge, the rear edge, the first side edge, and the second side edge define an isosceles trapezoid;
(b) a ridge portion;
(c) a notch comprising a chamfer that diverges from the notch;
(d) a top portion, wherein the top portion comprises relief emulating shake or slate;
(e) a plurality of support ribs downwardly disposed from a bottom of the shingle; and
(f) wherein the shingle is formed as a single unit and comprises a bend at the ridge portion and further comprises sufficient flexibility to accommodate a range of pitches of roof hips and ridges.
10. The shingle of claim 9 wherein the plurality of support ribs comprises at least one rib contained within the ridge portion and wherein said rib is substantially parallel to the front edge of the shingle.
11. The shingle of claim 9 wherein the angle of the notch is between approximately 30 degrees and approximately 60 degrees.
12. The shingle of claim 9 wherein the notch is in the front edge of the shingle and within the ridge portion of shingle.
13. The shingle of claim 9 wherein the notch further comprises a flat portion parallel to the top portion of the shingle.
14. A method of installing a shingle on a roof hip or ridge, the roof hip or ridge comprising a pitch, the method comprising:
(a) providing a plurality of shingles comprising (i) a front edge, a rear edge, a first side edge, and a second side edge, wherein the front edge, the rear edge, the first side edge, and the second side edge define an isosceles trapezoid; (ii) a ridge portion; (iii) a notch comprising a chamfer that diverges from the notch; (iv) a front top portion, wherein the front top portion comprises relief emulating shake or slate; (v) a rear top portion; (vi) a first side and a second side; (vii) a plurality of support ribs downwardly disposed from a bottom of the shingle; and (viii) a bend at the ridge portion and further comprises sufficient flexibility to accommodate a range of pitches of roof hips and ridges;
(b) positioning the ridge portion of a first shingle over the apex of the hip or ridge;
(c) bending the first shingle so that the angle of the bend at the ridge portion is substantially the same as the angle of the apex;
(d) inserting a first fastener through the rear top portion of the first side of the first shingle;
(e) inserting a second fastener through the rear top portion of the second side of the first shingle;
(f) positioning the ridge portion of a second shingle over the apex of the hip or ridge and over the rear top portion of the first shingle;
(g) inserting a first fastener through the rear top portion of the first side of the second shingle;
(e) inserting a second fastener through the rear top portion of the second side of the second shingle.
15. A shingle for use on a roof hip or ridge, the shingle comprising:
(a) a front edge, a rear edge, a first side edge, and a second side edge, wherein the front edge, the rear edge, the first side edge, and the second side edge define an isosceles trapezoid;
(b) a top surface;
(c) a ridge portion;
(d) a notch in the ridge portion of the shingle comprising a chamfer that diverges from the notch; and
(e) wherein the shingle comprises sufficient flexibility to accommodate a range of pitches of roof hips and ridges.
16. The shingle of claim 15 wherein the notch further comprises a flat portion parallel to the top surface of the shingle.
17. The shingle of claim 15 wherein the angle of the notch is between approximately 30 degrees and approximately 60 degrees.
18. The shingle of claim wherein the front edge comprises a front wall and wherein the notch is in the front wall of the shingle.