When installing windows, what should I do with the styrofoam on the frame?

Summary. Hello, dear. <>

Yes, it is needed. Once the windows are secured, the next step is to whip the styrofoam and sealant. Styrofoam is used to fill the gap between the window frame and the wall, it can not be exposed for a long time, otherwise it will age and become "crisp".

After the window sill plate is installed, should the lower part of the window frame be filled with styrofoam?

Hello, dear. <>

After the window sill plate is installed, the lower part of the window frame should be filled with styrofoam. Once the windows are secured, the next step is to whip the styrofoam and sealant. Styrofoam is used to fill the gap between the window frame and the wall, it can not be exposed for a long time, otherwise it will age and become "crisp".

The inner cavity of the expansion joint between the window frame and the opening should be filled with elastic materials such as foam plastic to avoid air and foaming agent.

The fundamental reason here is that we are not allowed to use styrofoam to fix aluminum alloy door and window covers, and the most fundamental reason is that styrofoam does not have the function of connection. For styrofoam, we all know that after we fill the gap, it can expand itself, so that the window is fixed. But the most important thing it plays is actually to seal the gaps.

And there is no good pull. Under the influence of external forces, the styrofoam may be separated from the wall or window frame. Therefore, it is not allowed to use styrofoam to fix the door and window frames directly.

The installation of aluminum alloy door and window sleeves is installed in the hole, and in the process of installation, there is a gap between the aluminum alloy door and window sleeve and the opening. If we do not reliably fix the gap between the door and window cover and the wall, these door and window cover will slowly loosen with the increase of use.

For example, a common situation is that the foam filler filled inside is loose, so there is a leak of rain and air.

There are serious safety risks. Why is there a serious safety hazard?

It means that our aluminum alloy doors and windows are very limited if they are only fixed with foam fillers, that is, styrofoam. For example, in the most common case, in the case of particularly strong winds, if there is a push on the side of our window, then the window may fall off our balcony directly. That is to say, for balcony windows, this problem is also the most serious.

It can also cause the windows to fall off. This means that when we are operating on the window, we may accidentally fall down with the window.

For example, the most common situation is that in the process of cleaning, many people are standing on the windowsill and pulling the window with one hand. And in this case, if our windows are not effectively fixed with the wall, just hit the styrofoam. Then it may be pulled by the human body and fall down with the window, so it is very dangerous.

When installing the window frame, once the explosive agent is pressurized, it is also so that he can produce the foaming agent, which is bigger, better connected, and more stable.

Dangerous.

When decorating the door frame and window with foaming agent, because the stucco of the wall tile structure is not so standard, it does not match the standard size of 90° perpendicular to each side, resulting in different degrees of cracks on each side; The foaming agent is mainly used to fill the transitional structure of door frames, window frames and walls, which should be suitable for fixing on the wall and firmly fixing the door frame and window frame on the wall. The main fixing of the door frame was held in place by bolts designed when they produced it themselves. Don't expect blowing agents to hold door frames in place.

Precautions for installing windows.

When using aluminum alloy windows, the size of the closed surface of the balcony should be accurately measured before sealing the balcony, and the window frames and glass should be processed and made according to the size outside the construction site, and transported to the construction site. Before installation, check whether the size of the window is consistent with the size of the opening of the sealed balcony.

Before the window is installed, the base layer of the balcony opening should be cleaned, and the base material of the window close to the wall should be removed, and holes should be punched at the fixed point, and expansion bolts or plastic expansion pins should be preset to fix the window. When installing windows, the window should first be firmly seated at the opening, fixed its position, and fixed with screws and plastic expansion pins.

When installing windows, the frame should be wiped with a rag after the styrofoam is finished, and if the styrofoam is not wiped completely, it is likely to affect the beauty of the window sill.

It is necessary to make a trimming of the styrofoam to keep it beautiful. Then clean the window sills and window frames; Sealant is required.

The window needs to be fixed, and the styrofoam needs to be leveled, the window needs to be fixed and then start to blow the styrofoam, otherwise the window is not exactly no, the styrofoam may not look good, and it needs to be leveled after drying, so that it can be filled with latex paint.

Summary. Hello dear! Styrofoam can be applied to the cavity of aluminum alloy doors and windows.

Improper use of foam glue will cause corrosion to the application items, so it is necessary to pay attention to the correct use; The adhesive surface is dusted and kept clean; After gluing, let it dry for 20 seconds, then close it to make it instantly firm. Due to the different temperature and humidity, the drying time is also different, the observable method is to dry for 5 seconds, and then touch the adhesive surface every second to pull it apart, and wait for 3 seconds to close after seeing the phenomenon of "drawing".

Hello dear! Styrofoam can be applied to the cavity of aluminum alloy doors and windows. When foam glue is used, it will cause corrosion to the application items, so it is necessary to pay attention to the correct use; The adhesive surface is dusted and kept clean; After gluing, let it dry for 20 seconds, then close it to make it instantly firm.

Due to the different temperature and humidity of the key cavity, the drying time is also different, and the observable method is to dry for 5 seconds, and then touch the adhesive surface every second to pull it apart, and wait for the stool to do it for 3 seconds after seeing the phenomenon of "drawing".

It can be cleaned with a high concentration of thinner --- banana water, but the surface of the material must not be painted, or the color of the paint will be brushed off with it. Use the small shovel used to brush the wall and the cement to scrape off the layer of foam attached to the surface of the glue without worrying about scratching, and then use an oil brush to dip incense and banana water on the glue after brushing off the foam, and first resist the song for a while.

After the gaps of plastic steel doors and windows are filled with styrofoam, do they need to be treated outside?

Hello, the styrofoam should be sealed inside and outside. Foaming agent is applied in the gap between the plastic steel doors and windows and the wall, as long as it is to solve the problem that the doors and windows cannot be freely deformed by temperature changes due to temperature changes caused by plastering mortar plugging. It can not fully play a sealing role (because there are always discontinuous parts after foaming the foaming agent), and the waterproof and sealing problems are mainly solved by playing sealant in the dark corner between the door, window and wall plastering surface after plastering.

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Styrofoam is done after fixing the bracket.

The general process of door and window installation is to fix the bracket, blow the styrofoam, install the door and window sash and other accessories, and apply the sealant.

Styrofoam is mainly used for filling, sealing and bonding at the edge joints of building doors and windows, expansion joints and holes of components. It is a polyurethane elastomeric sealing foam that relies on moisture curing. Styrofoam is composed of polyurethane prepolymer, foaming agent, catalyst, crosslinker, etc. filled into a high-pressure resistant iron can, and filled with propane and other gases.

It is divided into two types: gun type and tube type, the gun type is required to use a special polyurethane foam gun, and the tube type is equipped with a disposable hose.

First: according to the ink line of the door and window installation position, the door and window are installed into the hole in place, and the position and deviation should meet the standard.

Second: the connection between the door and window frame and the wall is fixed, and the expansion bolt method is used in this project. Sealing of the gap between the door and window frame and the wall installation.

Third: After the installation is fixed, the acceptance is carried out, and the sealing treatment of the gap between the door and window frame and the wall installation is carried out after the inspection is qualified.

Fourth: the treatment of the gap between the door and window frame and the wall installation shall be carried out according to the design regulations. The cement slurry should be filled, such as the outdoor side to leave a sealing notch, and fill with waterproof sealant.

Fifth: the installation of hardware accessories is complete, and to ensure its flexible use.

Sixth: the installation of door and window sashes and door and window glass should be carried out after the completion of the surface decoration project of the opening wall.

Seventh: the casement window is assembled on the wall, after the installation is fixed, the glass is installed, the gap is adjusted first, and then the glass is put into the fan, and finally the sealing strip, sealant, and anti-collision glue are inlaid. After the window frame is installed and fixed, the sash with glass will be installed as a whole, that is, the glass into the sash will be sealed and sealed, and then enter the frame, and the gap between the frame and the sash will be adjusted.

After the installation and fixing of the door and window frames, the styrofoam is beaten. The caulking with cement mortar you said is non-standard construction, which affects the waterproof performance of doors and windows on the one hand, and on the other hand, cement mortar is a hard filling, and the thermal expansion and contraction of doors and windows will deform doors and windows or have gaps in the connections.

If needed, I can give you JGJ 103-2008 "Technical Regulations for Plastic Doors and Windows".

After the doors and windows are adjusted, it is necessary to blow the styrofoam to fill the gap between the door and window frames and the wall. After the styrofoam has cured (it usually takes 2-3 hours, it takes longer in winter), cut off the excess styrofoam.