1, broken bridge aluminum doors and windows should be manufactured in the factory, not in the construction site. The manufacture of doors and windows should meet the requirements of the design and Code for Installation and Acceptance of Insulated Aluminum Alloy Doors and Windows. The insulated aluminum alloy door and window frames should be installed firmly, the doors and windows should be pushed and pulled flexibly, and the window sill should be provided with drainage holes and limit devices. Fasteners shall comply with relevant technical regulations; The model, specification and performance of hardware shall conform to the provisions of current national standards.

2. The drainage hole on the slide of sliding window should be processed according to the principle of inner fan outer hole and outer fan inner hole to ensure the sealing performance of doors and windows, especially for flat-topped sliding windows.

3. Before assembling the broken aluminum doors and windows, the machining burr at the end should be removed, and sealing measures such as waterproof glue must be taken at the joint of the end node and profile to prevent the structure from water seepage.

4. The structural assembly of concealed frame window must be made and maintained in clean room.

Solvent must be used to remove dust, oil stains and other dirt on the bonding surface between glass and aluminum frame; Every time a component or a piece of glass is cleaned, a clean dry rag should be replaced; The solvent should be poured on the wiping cloth, and it is forbidden for the wiping cloth to contact the bottle mouth of the solvent. Glue injection must be full, no bubbles, no glue leakage, and the surface of glue joint should be flat and smooth; The residual glue in the glue joint shall not be reused.