The prefabricated structural unit disclosed herein includes a metal frame or skeleton formed of a plurality of steel studs or channels welded into a shaped unitary frame having the general exterior configuration of the structural unit. Asbestos-cement panels or sheets are permanently secured to the exterior of the frame which are joined and sealed by an adhesive to form a continuous monolithic exterior surface. The exterior surface is then finished by coating the surface with a cementitious matrix into which is distributed a stone or other aggregate providing a precast monolithic appearance. The disclosed method of forming a prefabricated structural unit includes welding the steel channels or studs into a relatively lightweight unitary frame structure, permanently securing the asbestos-cement panels over the exterior of the frame, as by nailing the panels directly to the frame, and joining and sealing the panels with an adhesive. A cement matrix is then applied over the panels and a stone aggregate is distributed in the matrix while the matrix is in the fluid state. The exterior surface is then dried, wherein the cementitious matrix forms a substantially continuous layer with the cement-asbestos panels.
The invention is directed to a bond-compatible composite membrane that includes a bituminous material layer and a polyester layer and its use as an intermediate layer between a building structure and exterior finishing materials. Unlike conventional composite membranes, the bond-compatible composite membrane has a rough surface that allows bonding materials to adhere to it. Therefore, mechanical devices are not needed to attach the exterior finishing materials to the building structure.
The invention is directed to a bond-compatible composite membrane comprising a first self-adhesive material layer and a second rough fabric layer, and its use as an intermediate layer between a building structure substrate and exterior finishing materials. Unlike conventional composite membranes, the bond-compatible composite membrane has a rough surface that allows bonding materials to adhere to it. Therefore, mechanical devices are not needed to attach the exterior finishing materials to the building structure.
An exterior finishing system including a bond-compatible composite membrane having a first self-adhesive material layer and a second rough fabric layer, and its use as an intermediate layer between a building structure substrate and exterior finishing materials is provided. Unlike conventional composite membranes, the bond-compatible composite membrane has a rough surface that allows bonding materials to adhere to it. Therefore, mechanical devices are not needed to attach the exterior finishing materials to the building structure.
