commercial aluminum window manufacturers The water tightness and air tightness of aluminum alloy doors and windows are the key to measuring quality. According to the summary of actual engineering experience, pay attention to the following ten points, aluminum alloy doors and windows will not leak air and water. Aluminum alloy doors and windows The doors and windows made of aluminum alloy extruded profiles as frames, stiles and fans are called aluminum alloy doors and windows, or aluminum doors and windows for short. 1: Since the general aluminum alloy doors and windows of enterprises are recessed, the top of the window must be a dripping beak to prevent the capillary phenomenon of rainwater from occurring. 2: Aluminum alloy doors and windows should be coated with waterproof coating about 300 mm away from the window, and lead water oil should be coated on the gray position before using the waterproof coating. 3: The windows must be sealed with concrete that has been added with waterproofing agent. Please note that waterproofing agent must be added. 4: Waterproof sealant should be applied to the transfer position around the window frame and other materials. 5: Fully open the top of the windows and add wall panels to prevent rainwater from flowing upwards into the room from the opening. 6: The glass aluminum frame is filled with sealing material, and the tape is not used. 7: The construction should strictly require the surrounding interfaces to be processed. used french patio doors for sale aluminum double hung windows price how much do large patio doors cost? modern drapes for sliding glass door