Patent ID: 7368155

Claim:
A self-adhering peel-and-stick roofing membrane comprising: a. a thermoplastic single-ply membrane having a lower surface and an upper surface, the lower surface having a first pressure sensitive adhesive layer coated thereon and a first removable release liner on the first pressure sensitive adhesive layer, the upper surface having a side lap area defined at one lengthwise border of the membrane and extending longitudinally thereon; b. optionally a primer and/or cleaner layer applied on the side lap area; c. a second pressure sensitive adhesive layer coated on the side lap area or on the optional primer and/or cleaner applied on the side lap area; d. a removable release liner applied on the second pressure sensitive adhesive layer; e. a reduced area, the reduced area being located on the first pressure sensitive adhesive layer on the lower surface of the membrane, the reduced area corresponding to the second pressure sensitive coated on the side lap area on the upper surface of the membrane, in which the reduced area is reduced or equal to the thickness of the second pressure sensitive adhesive layer coated on the side lap area.