What Should You Note When Maintaining Aluminum Windows & Doors?

The wall thickness of the main stress-bearing part of window profiles shall not be less than 1.4mm. For high-rise buildings above 20 floors, the thickness of the profiles can be increased appropriately; the wall thickness of the main stress-bearing part of door profiles shall not be less than 1.8mm, which meets the wind pressure resistance requirements of the national standard. For a single door or window with an area exceeding 3 to 4 square meters, the profile can be thickened, and columns can be added for an excessively large door or window.