Aluminum alloy window frame is installed after all around to play foaming agent? There is no mouth does not play foaming agent Some people say that after the mouth blowing foam will be seepage? More
Yes. This is the building energy efficiency regulations, and hidden acceptance also have video data.
Four sides should be playing foam agent. Bottom side with cement mortar alone is wrong. Because aluminum alloy thermal expansion and contraction is much larger than the cement mortar, the course of time must be separated from the cement mortar, cracks. If you use the blowing agent, foaming agent itself has a certain flexibility, can be better fit aluminum alloy to play a sealing effect.
Aluminum doors and windows frame installed after the only need to play in the left, right and above the three sides to play on the line, the mouth not to fight, to use cement mortar can be filled, and the left and right sides of the bottom 10cm also use cement mortar Fill in.
