The invention relates to a building insulating aluminum sheet light weight wall body. It includes heated board, metal keel, interior decorative board, fireproofing insulating layer and main body structure. The heated board is fixed on the outside of the metal keel. Its inside is set interior decorative board. It is connected with the main body structure. Rock wool, glass fiber alumina silicate or other fireproofing insulating layer is set between them. The invention can adopt factory run and dry method construction method to install to reduce procedure and working floor. And the wall body can be directly buried nema and water pipe to increase indoor usable floor space. It has the advantages of convenient installation, high production efficiency, and no influence for extrinsic factor. And its alumina silicate, polyurethane, metal keel are can be reclaimed. Thus it has good practicability, economical efficiency, and has positive meaning for energy saving and practice innovating of building enclosing construction. |