Appeal 2007-2771
Application 10/418,661
STATEMENT OF THE CASE
The subject matter on appeal is directed to a roofing method and
system involving the use of a flexible mat as an underlayment for a single-
ply roofing membrane (Specification 1). Further details of the appealed
subject matter are recited in representative claims 19, 22, 23, 25, 26, and 27
reproduced below:
19. A method of protecting a waterproof roofing membrane
component comprising selecting a flexible mat component comprising
synthetic material that is compatible with the waterproof roofing membrane
component and unrolling the flexible mat between the waterproof roofing
membrane and a roof deck, wherein the waterproof roofing membrane is a
single ply membrane, and wherein the mat is non-perforated.
22. A roofing method comprising unrolling a flexible mat
component onto a roof deck and installing a waterproof membrane
component over the flexible mat, wherein the waterproof roofing membrane
is a single ply membrane, and wherein the mat separates the roof deck and
the single ply membrane such that the roof deck does not contact the single
ply membrane.
23. A roofing system comprising:
(a) a single ply waterproof roofing membrane component
selected from the group consisting of synthetic rubber, polyvinyl chloride,
and chlorinated polyethylene; and
(b) a flexible underlayment mat component for unrolling
between a roof deck and the waterproof membrane, wherein the flexible mat
(i) comprises synthetic material compatible with the waterproof membrane
such that the membrane is not damaged by contact with the flexible mat, (ii)
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Last modified: September 9, 2013