Plastic steel window frame and the gap between the walls shall not be filled with cement mortar, should be filled with elastic material filled with what kind of elastic material is better
First polyurethane foam, and then caulking mortar.
It is now popular with polyurethane foam glue
Polyurethane foam caulking is the convenience of the doors and windows in the installation process, if it is to consider the problem of water leakage, you can refer to the following process operation: 1. Window and wall connection should first check the embedded parts and window connector Quantity, location is correct, in the absence of caulking should check the window frame and the wall between the shaking and micro-moving phenomenon. If you find the above phenomenon, the embedded parts to be reinforced, and around the window frame with foam polyurethane to fill, to stay 6 × 6 seam with silicone embedded real. 2. Grass-roots plastering to strictly check the location and size of the hole to prevent the installation of the window frame and then adjust the overall impact of grass-roots level, grass-roots construction must be strictly stratified construction. 3. In the surrounding block before the need to clean up the debris, and rinse, caulking with caulking tools will be embedded into the mortar, and layered embedded, embedded real, to enhance the anti-seepage effect. 4. The windowsill to make a certain out of the water, in order to quickly discharge the rain, the window frame around the outside are sealed with a sealant, the sill outside the lower mouth must be made of notch drip tank to prevent climbing.
