Self-adhesive flexible membrane

1. A self-adhesive membrane, comprising:

a substrate having a bottom surface, a first edge, an opposite edge, and a width;

an adhesive substance partially covering said bottom surface, said adhesive substance covering an area of said bottom surface adjacent to said first edge, wherein a gap is formed between said opposite edge and said area covered by said adhesive substance to form a portion of said substrate that is not covered by any of said adhesive substance, said gap having a length extending from said opposite edge up to 15% of said width of said substrate, said gap providing a seam line;

a first liner partially covering said adhesive substance, said first liner covering said area of said adhesive substance adjacent to said first edge; and

a second liner covering another area of said adhesive substance not covered by said first liner, said second liner and said first liner being independently separable from said adhesive substance, said area of said adhesive substance covered by said first liner being less than said area of said adhesive substance covered by said second liner.

2. The self-adhesive membrane according to claim 1 , wherein said substrate includes a second edge adjacent to said first edge, said first liner extending to said second edge.

3. The self-adhesive membrane according to claim 1 , wherein said gap is essentially 0% of said width and said first liner and said second liner cooperatively cover said adhesive substance completely.

4. The self-adhesive membrane according to claim 1 , wherein said first liner one of partially overlaps and abuts said second liner.

5. The self-adhesive membrane according to claim 1 , wherein a gap is formed between said first liner and said second liner.

6. The self-adhesive membrane according to claim 1 , wherein said substrate comprises at least one of thermoplastic polyolefin and ethylene propylene d terpolymer.

7. A plurality of self-adhesive membranes, comprising:

a first self-adhesive membrane comprising a first substrate, having a first bottom surface, a first edge, a first width, a first adhesive substance at least partially covering said first bottom surface, said first adhesive substance covering a first area of said first bottom surface forming a first gap between said first edge and said first area covered by said first adhesive substance, said first gap having a first length extending from said first edge up to 15% of said first width of said first substrate;

a second self-adhesive membrane comprising a second substrate, having a second bottom surface, a second edge, a second width, a second adhesive substance at least partially covering said second bottom surface, said second adhesive substance covering a second area of said second bottom surface forming a second gap between said second edge and said second area covered by said second adhesive substance, said second gap having a second length extending from said second edge up to 15% of said second width of said second substrate, said second gap providing a second seam line; and

said first substrate and second substrate each including an overlap portion corresponding to said first gap and said second gap, respectively, the overlap portions of the first substrate and the second substrate sewn to each other.

8. The self-adhesive membrane according to claim 1 , further comprising a first pull tab connected to said first liner and not adhered to said adhesive substance.

9. The self-adhesive membrane according to claim 8 , further comprising a second pull tab connected to said second liner and not adhered to said adhesive substance.

10. The self-adhesive membrane according to claim 8 , wherein the first pull tab is connected to an end of said first liner adjacent to said second liner.