Here are some simple methods. How to check the installation quality of doors and windows?
Look at the wood: no cracking, smooth wood grain, smooth and clean paint.
The frame is connected to the wall: the window frame should be horizontal and vertical, the height should be the same, the spacing of the fixing piece should be less than or equal to 600 mm, the frame and the wall should be firmly connected, the gap should be filled with elastic material, and the surface seam seal can be sealed. crack.
Look at the window surface: the window frame should be clean, smooth, smooth, no scratches or bumps on the surface, and the profile is not broken.
Look at the glass sealing strip: the contact between the sealing strip and the glass and glass notch should be flat, and it should not be curled or undocked.
Look at the glass: the glass should be flat and firm, and there should be no looseness. The single-layer glass should not be in direct contact with the profile. The inner and outer surfaces of the double-layer glass should be clean. There should be no dust or moisture in the glass interlayer, and the spacers should not be lifted.
Look at the puzzle: the splicing material should be tightly connected with the window frame, and sealed with the caulking paste. It should not be disturbed. The spacing of the screws should be less than or equal to 600 mm. Both ends of the reinforced steel should be fixed firmly to the hole.
Look at the bead: the bead with the sealing strip must be in close contact with the glass. There should be no obvious gap between the bead and the joint of the profile. The joint gap should be less than or equal to 1 mm. Push-pull.
Look at the sealing quality: when the door and window are half-closed, there is no obvious gap between the fan and the frame, and the sealing strip on the sealing surface should be in a compressed state.
Look at the drain hole: the drain hole should be in the correct position and at the same time be smooth.
Look at the switch components: the swing, push-pull or swivel windows should be closed tightly.
Look at the hardware: the hardware must be complete, the position is correct, the installation is firm, flexible, and can achieve their respective functions.
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