Renovating old buildings - by attaching new frames to existing base frames fast with the buildings and filling spaces between frames with foamed polyurethane

摘要

Structural frames are replaced by removing the old frame with the exception of the base frame fast with the structure. The replacement frame is then fitted into and attached to the base frame and the joint between the frames is covered by strips and the spaces between the frames are filled with a filler such as polyurethane foam.