Patent ID: 8230656

Claim:
A roof system for use in simulating a standing seam metal roof when applied to a roof surface comprising a plurality of spaced-apart, generally parallel longitudinal battens of metal, plastic or polymer construction fastened to a roof, defining a plurality of membrane-receiving zones therebetween, and including a membrane comprised of membrane strips disposed in the zones between the battens, and further comprising an underlayment, wherein the membrane comprises a multi-layer laminate having three layers in addition to any adhesive or laminate adhering the layers together; said three membrane layers comprising: (a) a bottom layer being a bituminous layer having a reinforcement therein and an adhesive lower surface; (b) a middle layer being a metal-like layer; and (c) a top layer being a film as a protective coating layer laminated to the metal-like layer; and with the membrane adhesively fastened to the underlayment; with the underlayment comprising a multi-layer laminate having three layers in addition to any adhesive or laminate adhering the layers together; said three underlayment layers comprising: (d) a plastic film layer that is to be applied against a roof surface; (e) a base sheet on top of the plastic film; and (f) a plastic film layer adhesively applied on top of the base sheet and to which the three-layer laminate is applied.