Are all aluminum alloy door and window frames firmly fixed with foam adhesive？

For the installation of aluminum alloy doors and windows, or the installation of broken bridge aluminum doors and windows, everyone will find that a large amount of foam adhesive is used during the installation process. The function of foam adhesive is actually to fill the gap between the window frame and the wall. But many friends may find that the installation of windows is only done with foam glue without relevant fixing measures. Can it be firm?

Aluminum alloy door and window frames are all filled and fixed with foam adhesive. The author's personal opinion is that if all aluminum alloy door and window frames are filled and fixed with foam adhesive, they will definitely not be firm, and the installation of aluminum alloy door and window frames is not allowed to be directly fixed with foam adhesive.

Why is the aluminum door and window cover not fixed firmly with foam? The author provides the following four reasons for everyone:

1. Root cause

The fundamental reason mentioned here is that we are not allowed to directly use foam adhesive to fix aluminum alloy door and window frames, because foam adhesive does not have strong bonding function. As for foam adhesive, as we all know, after filling the gaps, it can expand on its own and fix the windows.

But its important role in fixation is actually to seal the gaps, without forming a strong adhesive. Under the influence of external forces, polyurethane foam adhesive may detach from walls or window frames. So it is not allowed to directly fix the door and window frames with foam glue.

2. The installation of aluminum alloy door and window covers is carried out inside the openings, and during the installation process, there are gaps between the aluminum alloy door and window covers and the openings

If we don't reliably fix the gaps between the door and window frames and the wall, these door and window frames will gradually loosen with increasing use.

For example, in a common situation, the foam filled inside becomes loose, resulting in leakage of rain and air.

3. There are serious safety hazards present

Why is there a serious security risk? It means that if our aluminum alloy doors and windows are only bonded with foam adhesive, that is, fixed with foam adhesive, their tensile effect is also very limited.

For example, in a common situation where the wind is particularly strong, if our window is pushed on the side, the window may fall off directly from the balcony. That is to say, the issue of balcony windows is also very serious.

4. It may also cause windows to fall off

The situation here refers to the possibility that we may accidentally fall down with the window while operating it.

For example, in common safety situations, many high-rise buildings have people standing on windowsills and pulling windows with one hand during the process of cleaning glass.

In this case, if our window is not effectively fixed to the wall, it is only bonded with pu foam adhesive. So it may be pulled by the human body's pulling force and fall down with the window, which is very dangerous.