Patent ID: 7662252

Claim:
A method for producing a reinforced polyester non-woven material suitable for use as a roofing material, comprising: forming a first layer of polyester non-woven material; providing a container which contains loose, unbound glass fibers substantially free of a binder, wherein the container has at feast one opening through which the loose, unbound glass fibers substantially free of a binder may pass; applying the loose, unbound glass fibers substantially free of a binder provided by the container, above the first layer of polyester non-woven material to form a layer of glass fibers substantially free of a binder; forming a second layer of polyester non-woven material above the layer of glass fibers substantially free of a binder; applying a liquid binder to a resulting structure comprising the first layer, the layer of glass fibers substantially free of a binder, and the second layer; and curing the liquid binder such that the layer of glass fibers is attached to the first and second layers of polyester non-woven material.