1. Construction preparation
(1). The type and variety of doors and windows meet the requirements of the drawings and are qualified by on-site sampling.
(2) the allowable deviation of the quality, shape and size of doors, windows and glass products shall conform to the specifications.
(3) check the position, size and elevation of door and window holes, and check whether the quantity and quality of embedded parts of door holes meet the design requirements.
(4) before construction, the professional Foreman will set out the layout and the team disclosure according to the actual construction drawing.
2. Rules for making bullet lines in the process & rarr; Door and window opening Processing & rarr; Position and temporary fixing & rarr; Door and window frame fixing & rarr; Caulking & rarr; casement installation & rarr; Installation hardware accessories & rarr; Cleaning
3. Installation and construction of doors and windows
(1) installation of doors and window frames should be carried out after wet operations such as indoor and external plastering, leveling and roughening are completed.
(2). Elastic line: first, the center line in the door and window hole should be popped out, and the width of the reference hole should be determined from the center line. After the door and window frame is installed, it should be consistent with the size of the wall external corner line. Horizontal lines with the same elevation are displayed on both sides of the opening, and the elevation of the horizontal lines should be the same in the same floor.
(3) installation of door and window frame: fix the door and window frame with wooden wedge temporarily according to the position of the elastic line, repeatedly correct the verticality and levelness of the door and window frame with horizontal ruler and supporting board, and adjust wooden wedge until the door and window frame is vertical and horizontal. Finally, use fastener to fix its connector on the wall. After checking and correcting, attach the protective laminating film. In the future construction, it is forbidden to put aside foot plank or other heavy objects.
(4) the connection position between the door and window frame and the wall: it should be set at 150mm from the angle of the frame and the intersection of the frame, the middle horizontal frame and the middle vertical frame, and the spacing between the connection points should not be greater than 500.
(5). Clearance treatment between door and window frame and wall: the outer door and window should first be fill plug foaming agent, and then sealed with special sealant. Wooden door frame the gap between the wall and the wall should be fill plug and dense with mixed mortar twice.
(6) Casement installation: After the construction of the surface layer of the inner and outer wall and the ground of the building is completed, the installation will be carried out.
(7). Sealant construction: remove the oil and dust on the surface of the sticky object. The sticky object should ensure a certain degree of dryness. It is required that the sealant should be eaten into the window frame 5mm, and the surface of the sealant should be flat after construction.
4. Quality standards and assurance measures
(1) doors and windows must conform to the design requirements and construction specifications.
(2) in order to ensure that the door and window frame are installed firmly, embedded parts or blocks and connecting iron parts must meet the requirements and be installed firmly. (3), the gap between the four sides of the door and window should not be too large or too small, and should be filled full.
(4), the door and window are closed tightly, open flexibly, without block, rebound and upturn; The accessories are complete.
5. Protection of finished products and semi-finished products
(1) strengthen the protection during construction, and do not tear off the protection laminating film attached to the edge of the frame at will. After the painting process is completed, the protective laminating film will be torn off, and the plastic laminating film will leave glue marks on the surface of the plastic aluminum profile, which should be cleaned with banana water.
(2) in the cross operation, especially in the process of removing scaffolding, Wood baffle should be used to protect the installed doors and windows to avoid steel pipes or hard objects being damaged.
