Abstract: A building membrane having a generally planar core having a top surface and a bottom surface, a polymeric back coat positioned below the bottom surface of the core; a polymeric face coat positioned above the top surface of the core; an adhesive base on at least a portion of the back coat adapted for adhering the building membrane to a building substrate.

Abstract: A multilayer composite material having a core layer that is a saturated fabric, the saturated fabric including woven polyethylene-terephthalate yarns and a polyvinyl-chloride adhesive between the woven yarns; the core layer having a first side and a second side; the core-layer first side being attached to a first side of a first polyvinyl-chloride layer that includes a flame-retardant component; the core-layer second side being attached to a first side of a second polyvinyl-chloride layer that includes a flame-retardant component; the second side of the second polyvinyl-chloride layer being attached to a first side of a low-emissivity layer that includes a component that reduces the amount of infrared light that can pass through the low-emissivity layer; and the low-emissivity layer having a second side that is attached to a first side of an ultraviolet-light inhibiting layer that includes an ultraviolet-light protectant that either absorbs ultraviolet light or reflects ultraviolet light, wherein the multilay