Installation process: scribed positioning waterproof installation of aluminium alloy doors and windows anticorrosive treatment installation of aluminium alloy doors and windows fixing of aluminium alloy windows treatment of gap between doors and windows frame and wall installation of doors and windows and windows glass installation of hardware accessories.
Scribing positioning
(1) According to the installation position, size and elevation of doors and windows in the design drawings, measure the edges of doors and windows to both sides according to the midline of doors and windows. If it is a multi-storey or high-rise building, take the edge line of the top door and window as the standard, draw the edge line of the door and window down with a drop or theodolite, mark the edge line at the doors and windows of each storey, and pick and chisel the individual non-straight edges.
(2) The horizontal position of doors and windows should be measured upward and backward with the horizontal line of + 50cm in the floor interior, and the elastic line should be straightened out. Each floor must maintain the same elevation of the underside of the window.
There are no drainage holes in the lower part of the aluminum window sill, which makes the water flowing out automatically into the aluminum cavity; the inner edge plate of the push-pull window bottom frame is not higher than the outer edge plate, and the water can easily cross the guide rail and enter the room under the action of wind; the joints between the aluminum materials are not fastened, nor sealed with sealant, which causes the rainwater to infiltrate into the inner cavity of the frame along these holes. The wall causes water leakage.