Patent ID: 11959280
Assignee: BMIC LLC
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 7:
8. A roofing system comprising a roof substrate and at least two roofing shingles in vertically adjacent courses, each of the roofing shingles having:
(a) an upper layer having a front surface, a back surface, a top edge, a lower edge, a length, and a width;
(b) a backer strip having a front surface, a back surface, a length, and a width; and
(c) a total of only 2 or only 3 sealant lines,
wherein 0 sealant lines are disposed on the front surface of the upper layer of each roofing shingle, only 1 sealant line is disposed on the back surface of the upper layer of each roofing shingle and extends substantially across the length of the upper layer, and 1 sealant line is disposed on the back surface of the backer strip of each roofing shingle and extends substantially across the length of the backer strip, and
wherein the only 1 sealant line disposed on the back surface of the upper layer of each roofing shingle is positioned proximate to the top edge of the upper layer of each roofing shingle, such that the only 1 sealant line disposed on the back surface of the upper layer of each roofing shingle is in contact with the roof substrate.