Shingles with combined fastener target zone and water barrier and process for producing same
A shingle, an array of shingles, and a process for producing the shingles, either of the field shingle type, or of the hip, ridge or rake type, wherein the shingles have a shortened headlap portion for purposes of reducing the amount of material necessary to make the shingle, wherein each of the shingles has a fastening zone for receiving fasteners therethrough, which fastening zone is an overlay of granule covered adhesive, and is in the headlap portion, and wherein a contact zone layer of adhesive is provided on the rear of the tab portion of the shingle, for contact against the overlay of granule covered adhesive when a next-overlying shingle is arranged in an array above a next-underlying shingle.
1. A shingle comprising a tab portion adapted to be exposed when installed on a roof and a headlap portion adapted to be unexposed when installed on a roof, and including an adhesive impregnated mat with upper and lower surfaces, with granules on the upper surface, and including at least one overlay of granule covered adhesive comprising a narrow band along the upper surface of the headlap portion creating a thicker portion along the shingle than the rest of the shingle, wherein granules on said upper surface are beneath said overlay, with the overlay comprising any one of:
(a) means providing a fastening zone for receiving fasteners therethrough, for fastening the shingle to a roof; and
(b) means providing a contact zone for adhesive of an overlying tab portion of a next-overlying shingle when the shingle is installed on a roof, for forming a water barrier against water entering between overlying and next-underlying shingles at the location of said overlay.
2. The shingle of claim 1 , wherein the shingle has a tab portion that is of a height that is a multiple of the height of the headlap portion; and wherein the multiple is any one of:
(a) greater than 1; and
(b) less than 1.
3. The shingle of claim 1 , wherein the at least one overlay comprises both the fastening zone and the contact zone of claim 1 .
4. The shingle of claim 1 , wherein the shingle comprises a multi-layer laminated shingle.
5. The shingle of claim 1 , wherein the shingle comprises a field shingle.
6. The shingle of claim 1 , wherein the shingle comprises hip, ridge or rake shingle.
7. An array of shingle according to claim 1 laid up on a roof, with next-overlying shingles having tab portions overlying headlap portions of next-underlying shingles and with fasteners applied through the overlays, fastening the shingles to a roof.
8. The array of shingles of claim 7 , with adhesive strips carried beneath tab portions of next-overlaying shingles, covering and adhered to the overlays of next-underlying shingles, with the adhesive strips and the overlays comprising water barriers to water entering between next-overlying and next-underlying shingles.
9. The array of shingles of claim 8 , wherein the shingles comprise multi-layer laminated shingles.
10. The array of shingles of claim 8 , wherein the shingles comprise field shingles.
11. The array of shingles of claim 8 , wherein the shingles comprise hip, ridge or rake shingles.
12. The array of shingles of claim 7 , wherein the shingles comprise multi-layer laminated shingles.
13. The array of shingles of claim 7 , wherein the shingles comprise field shingles.
14. The array of shingles of claim 7 , wherein the shingles comprise hip, ridge or rake shingles.
15. The array of shingles of claim 7 , wherein the overlays are continuous across the headlap portions of the shingles.
16. The array of shingles of claim 7 , wherein the overlays are discontinuous across the headlap portions of the shingles.