Installation of aluminum alloy doors and windows and how to do waterproof treatment by yourself

Analysis on the causes of water seepage in aluminum alloy doors and windows

1.

Self-leakage of doors and windows

1. 1

Self-sealing is strict;

1.2

Automatic drainage system drains smoothly;

2.

Cracks in door and window installation lead to water seepage.

2. 1

The deformation of the door and window frame material leads to cracks between it and the wall;

2.2

The filler between the door and window frame material and the wall surface shrinks evenly to produce gaps;

2.3

Install the gap with the same material and the same cold and hot shrinkage coefficient;

Second, aluminum alloy doors and windows should use self-waterproof materials and familiar products to ensure the self-tightness of materials. Its principle is to prevent the leakage of rain water, make good use of drainage and plugging, and avoid the leakage of aluminum alloy doors and windows. Two self-waterproof functions of the same type of aluminum alloy doors and windows are briefly analyzed:

1.

Sliding doors and windows 1. 1

Reasonable Design of Waterproof rubber strip (Block)

Add airtight rubber strips around the window frame of sliding doors and windows to make it more closely combined with the window frame; Adding wind shields between window sashes can inhibit air flow and reduce water leakage.

1.2

Reasonable design of drainage structure (sparse)

The outer sliding window guide rail is 45 mm away from the left and right frame edges.

30 mm milling

Drainage; The guide rail of the inner sliding window is 45 mm away from the left and right frame edges.

30 mm milling

The water outlet is provided with a guide rail part to allow rainwater to flow to the through hole of the guide rail of the outer window frame. If rainwater seeps into the inner fan guide rail, the rainwater first flows into the inner fan guide rail drainage hole along the inner fan guide rail drainage hole, and then flows into the outer fan guide rail drainage hole of the outer fan guide rail.

2.

Flat doors and windows 2. 1

Reasonable Design of Waterproof rubber strip (Block)

A. The left and right sides of the door and window sash are respectively provided with plane water stop lines (in

Materials) and water stop line (in

Material) 5mm pressure window frame and window frame are closely connected; Three-way water stop line (at

Material) and increases the infiltration path around the outer surface of the rainwater sash to reduce rainwater infiltration.

B, a U-shape is arranged at the inner side of the joint between the door sash and the window frame.

Type water stop line (in

Material); United States of America

T-shaped water stop line (AT material) acts on the window sash to close the contact surface of the water stop line, which increases the tightness between the window sash and the window frame and prevents rainwater from infiltrating.

2.2

Reasonable design of drainage structure (sparse)

There is no water retaining sill outside the door window frame, and there is no flat water stop line (at

Material) window frame and 3 mm.

This gap ensures the left and right penetration of the rain sash, so that the rain window frame can quickly drain laterally and prevent the drainage from seeping into the room smoothly.

Three, aluminum alloy doors and windows installation waterproof 1. Window frame hole on both sides and windowsill pouring 200 mm

Thick C25

Concrete special windowsill coping must ensure 20mm inside and outside.

Height difference; Let aluminum alloy door and window steel subframe connector (diameter 8mm

The anchoring degree of building structural adhesive used to connect steel bars with concrete should meet the requirements of domestic specifications; Welded with steel subframe; Set at a distance of 180mm from the corner.

When setting the remaining spacing to 500mm, it should be noted that the connector should be rust-proof and the embedded connection must be firm.

2. There should be 20mm between steel frame and concrete.

The left and right gaps are easy to be filled with waterproof mortar or polymer cement mortar, which should be full and sealed with mixed mortar.

3. The second layer of external wall plastering convergent distance 200mm from the window.

2mm on the left and right.

The bottom of the steel subframe is coated with thick polymer cement-based coating; After the watering experiment with watering can is completed, it is necessary to plaster the second layer of leaking external wall and close the window and lintel, and the slope of the olecranon should be 20%; The outer window sill should be 20mm lower than the inner window sill, and the outer window sill should be made into a 20% outer drainage slope.

4. Before the installation of aluminum alloy doors and windows main frame, the base of steel auxiliary frame should be cleaned; Waterproof rubber pads should be used for connecting bolts of aluminum alloy doors and windows main frame and steel auxiliary frame; When installing the main frame of aluminum alloy doors and windows, the dust between the main frame of aluminum alloy doors and windows and the steel auxiliary frame of the fan should be blown clean to blow out the foaming agent, and the gaps on both sides of the foaming agent should escape to ensure that the foaming agent is fully filled between the main frame of aluminum alloy doors and windows and the steel auxiliary frame; 10 minutes to blow out the foaming agent.

Press it lightly with your fingers to make it dense, check whether there is any omission or densification, and remove the residual foaming agent. Notches should be left around the window frame for sealing by filling the notches with silica gel. When filling sealing materials, attention should be paid to removing floating ash mortar, so that the sealing materials can be firmly bonded with window frames and walls, and check whether the sealing materials are continuous.

5.

After installation of aluminum alloy doors and windows, spray test should be carried out to check the leakage of doors and windows.

Four. conclusion

The application of aluminum alloy doors and windows in modern architectural engineering is becoming more and more important: 1, decorative facade; 2. Prevent rainwater infiltration; It is particularly important to make its service life play an anti-seepage role. Our engineers and technicians need to update and improve the fracture surface, which can be used for the selection of aluminum alloy doors and windows, construction according to the situation, and the leakage requirements can be met through spray test. I hope it can be used for reference for similar projects.