Wall construction method using injected urethane foam between the wall and autoclaved concrete (AAC) blocks

摘要

The present invention provides novel wall construction systems and materials for residential and commercial construction that incorporate grooved lightweight building material units (e.g., blocks, panels, and the like), a plurality of connection devices, a track system, and (injected) polyurethane structural foam. The wall construction system comprises building material units married to a building frame with a plurality of connection devices (e.g., clip fasteners) slidingly retained in a track system that is attached to the building's structural (e.g., load-bearing) framing. The building material units are joined to each other with a suitable binding agent. The cavity between the frame and the building material units is injected with an insulating structural polyurethane foam. The exterior of the wall is finished with a waterproof applied finish such as cementitious stucco. The interior of the wall is amenable to standard finish options.

主权项

1. A composite construction system comprising: a load-bearing frame and a lightweight construction unit, and an internal cavity between the load-bearing frame and the lightweight construction unit, wherein one side of the lightweight concrete construction unit faces towards the load-bearing frame, further wherein the load-bearing frame is adhered to the lightweight concrete construction unit using at least a single layer of polyurethane foam interposed between the load-bearing frame and the lightweight concrete completely filling the internal cavity, wherein the layer of polyurethane foam prevents thermal bridging between the load-bearing frame and the lightweight concrete; and a plurality of connection devices between the load-bearing frame and the lightweight concrete construction unit wherein the plurality of connection devices are slidingly retained in at least one section of track system.