Weather resistant shingle system
View Patent ↗A weather resistant shingle system is provided, wherein a starter strip course of shingles is applied to a roof, and with successive courses of field shingles applied thereover, with adjacent underlying and overlying shingles adhesively secured together to provide wind resistance to tabs of next overlying shingles from being upwardly lifted under wind conditions, and to prevent moisture, such as rain, from entering beneath tabs of shingles.
1. A weather resistant field shingle for use in a system of a plurality of courses of field shingles and a course of starter shingles applied to a roof, each field shingle comprising:
(a) a butt portion and a tab portion and comprising a bitumen impregnated web having upper and lower surfaces with granules adhesively secured on at least said tab portion of the upper surface and with particles adhesively secured on the lower surface;
(b) with each field shingle having a top edge and a bottom edge and having at least two lines of adhesive spaced vertically apart at different distances from said bottom edge, with one said line of adhesive being carried on an upper surface of the butt portion of said shingle and with another said line of adhesive being carried on a lower surface of the tab potion of said shingle; and
(c) with the at least two said lines of adhesive, when a plurality of field shingles are laid up on a roof in courses with tab portions of shingles in an overlying course overlying butt portions of shingles in a next-underlying course, forming two separate moisture barriers at the locations of said lines of adhesive, against moisture penetrating between underlying and overlying field shingles in adjacent courses.
2. The shingle of claim 1 , wherein said at least two lines of adhesive form two separate wind resistance barriers against wind lifting an overlying field shingle from adjacent engagement with a next-underlying shingle.
3. The shingle of claim 1 , wherein at least one said line of adhesive is continuous across said shingle between right and left ends.
4. The shingle of claim 1 , wherein at least one said line of adhesive is discontinuous across said shingle between right and left ends.
5. The shingle of claim 1 , wherein at least one said line of adhesive is provided with a removable release strip covering said line of adhesive.