Pay attention to the wall thickness of aluminum profile, and the inner cavity of expansion joint between plastic-steel window lining steel, window frame and hole is filled with wall materials such as foamed plastic (VP) and foamed polyethylene in layers.
2. Pay attention to the aluminum alloy window, plastic steel window, water outlet tank and the inner cavity (lower edge) of the profile, fix the eyes with screws and use silicone head.
3. Whether the metal structure is straight; If it is a form, it is required that seals such as rubber strips are complete.
4. Whether the metal window is flexible and unobstructed.
5, anti-theft nets, security doors and other pipeline solder joints polished smooth, placed firmly, no loose phenomenon.
6. Is there a leak between windows?
7, such as sealing the balcony, attention should be paid to the cantilever awning and flower shed bricklaying along the window, and waterproof treatment should be done after internal and external cement painting.
8. Whether the specifications and wall thickness meet the requirements.
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