Waterproofing and waterproofing techniques for doors and windows

    1, a small amount of rainwater infiltrates through the gap into the lower section section cavity of the glass, and opens the drainage holes in the external cavity of the section, so that a small amount of accumulated water is discharged along the designed drainage route to the sink of the window frame. At the same time, the details of the design is mainly to prevent dripping eaves, the surface tension of water, along the profile wall to cavity flow.

    2, the overlap between window frame and window sash is not sealed, open slit, through the outside atmosphere, keep the pressure balance inside and outside the drainage holes, so as to ensure that rainwater can be discharged outside the drainage hole under its gravity.