Doors and windows are indispensable equipment for home decoration, but the frequency of rainwater leakage in doors and windows is very high, which makes the owners very headache.How should we prevent and repair them?
The Reason of Door and Window Leakage
Design Problem:
(1）The drip strips are not desinged according to the specifications, and the spacing of the drainage holes is too large
(2) The design of the aluminum alloy door and window rods is unreasoanle, and the rigidity or strength of the rods is insufficient. After installation, it is easily deformed by wind load, thus insufficient airtightness ow wat ertightness causes leakage.
Construction Reason:
(1) There is no seam at the connection between the aluminum alloy window frame and the wall, nor is it sealed with Qinglong Window Leakage,
and the cracks at the connection between the outer window frame and the wall leak;
(2) The fastening screw holes for the installation of aluminum alloy windows and the assembled parts of vertical and horizontal window frame
components are not sealed with windows
(3) The aluminum windows are not equipped with drain holes or the drain holes are too small, and the drain holes are blocked
(4) Defects in the manufacture of aluminum alloy doors and windows
Material Reason:
(1) The selection of aluminum alloy material does not meet the design requirements, and the rigidity is not enough
(2) The quality of the sealing material is poor, and it is easy to age and deform after being exposed to wind, rain, and sunlight.
Prevention for Door and Window Leakage
1. The lower frame of the aluminum alloy window must have a drainage structure: (1) Sliding window: the guide rail is milled at the position
near the two frames to drain water; (2) Casement window: each fan hole is milled at the position of the frame near the middle stile A
wide 8mm mouth to drain water.
2. During structural construction, the size of each side of the door and window opening should be 20mm smaller than each side of the window
frame, and it should be filled with polyurethane PU foam glue; it should be sealed with polymer self-adhesive seam tape at the junction;
3. Leave a groove with a width of 5 mm and a depth of 8 mm between the window frame aluminum alloy window frame and the surrounding
wall decoration layer.After cleaning, seal it with Qing Long Exterior Wall Product.
4. The height difference between the inner and outer window sills of aluminum alloy windows is >20mm, the outer window sill should be lower than the
inner window sill, and the outer window sill should have a 20% outward drainage slope, and the olecranon and drip grooves should be made on the window lintel
5. Fill the gap between the aluminum alloy window frame and the wall of the opening with polymer fiber waterproof mortar (dry hard), etc., and then
seal it tightly with Qinglong Exterior Window on the outside. It is advisable to paste polymer self-adhesive joints at the junction belt for sealing
6. The mortise joints, riveting joints, sliding braces, square grooves, screws and other parts of the aluminum alloy window frame, as well as the gaps
on both sides of the combined window splicing rods, should be sealed tightly with waterproof glass silica gel
7. Change the glide path of the low-side water retaining plate in the aluminum alloy sliding window frame to the inner glide path of the high-side water
retaining plate.
The Details of QL-Exterior Wall
QL Exterior Wall is a new modern technology waterproof product. It is transparent, weather-resistant and strong adhesive two-component material formed
with high molecular polymer as the base material. It is especially suitable for metal doors and windows, wooden doors and windows.
The sealing and waterproofing of doors and windows.
Main Features
① It can form a good bond with the door frame, window frame and wall. After curing, it will form a
continuous and dense coating film with excellent waterproof effect;
② It is colorless and transparent, and does not affect the appearance of doors and windows
③ It has super water resistance, UV resistance, ozone resistance and weather aging resistance, and is
suitable for long-term water immersion environments.
Application Method
① Sealing and waterproofing between aluminum alloy doors and windows, titanium alloy doors and
windows, plastic steel doors and windows and walls;
② Sealing and waterproofing between wooden door frames, doors, windows and walls.
Construction method
① Use sandpaper or special treatment agent to polish the door frame, window frame and wall surface to remove foreign matter such as floating dust, floating slurry, rust, etc., and the treated part must be kept
clean, dry and dense;
② Apply the window-tight coating to the joints, or other places that need to be sealed and waterproof;
③The doors and windows can be put into use 12 hours after the construction is completed.
Please contact us +6 07-509 0986 for more information!
