From Baidu know report notes:
Note point 1:
At present, aiming at the increasingly stringent standards and requirements in door and window engineering projects in china, in order to facilitate the construction party to better achieve wind pressure resistance, water tightness, air tightness, heat preservation, sound insulation, lighting, safety and other aspects of the performance requirements of doors and windows, to avoid the recurrence of common problems of exterior doors and windows engineering, the editor of china curtain wall network has sorted out several key points in the quality of doors and windows for you, hoping to produce doors and windows, the control of each link of construction technology provides some guidance.
First of all, aiming at the quality control performance of exterior doors and windows
I. Tightness
1. Corner sealing strip (rubber corner):
The sealing strip should avoid corner splicing, and the corner sealing strip should be designed into a 90-degree integral rubber angle.
2. Frame fan sealing strip:
Three sealant strips should be designed for opening fan parts, which are mainly sealant strips, fan edge pressing strips and frame edge pressing strips respectively.
II. Anti-leakage
1. The external window must be equipped with drainage channel, drainage outlet and exhaust hole (air pressure balance hole) to drain the water in the window frame. Buckle cover should be set outside the outfall to prevent strong wind from blowing rain and dust into the Casement.
2. The heat insulation strip should adopt C- type structure, which is on the same horizontal plane after being combined with internal and external aluminum profiles to avoid leakage and corrosion hazards caused by water accumulation at the heat insulation strip. At the same time, the length of heat insulation strip can be increased to improve thermal performance.
3. Door and window opening size: the structural opening should not be reserved too large to avoid leakage hidden danger caused by plugging difficulties.
4. Gate: for special reasons, if the external wall is stone curtain wall, the reserved size of the gate is large. It is recommended to make a gate for the structural gate. The gate should be poured at the same time as the concrete wall.
5. Exterior sill plate: for buildings with exterior wall materials as coatings, metal sill plate is recommended. The inside of the metal sill plate should be pressed into the window frame, and the outside should highlight the wall for dripping water.
6. Window frame and structural opening: The window frame should be installed in a vertical way. If it is installed by the outside, it should be folded inward by 20mm to prevent the window frame from being installed outside the outer skin of the structure due to structural construction errors, resulting in rainwater leakage.
3. Frame fan structure
1. Set angle: set angle is an important process related to the integrity of doors and windows.
Gluing process: Generally, the angle code + angle glue process should be adopted. Corner of the window extrusion molding without gluing is prohibited.
Glue injection process: angle code + conductive glue slot + glue injection hole + two-component glue injection + antler slices process can also be used to ensure corner strength requirements and ensure that the finished products of doors and windows do not have deformation and displacement after transportation and installation.
IV. Thermal insulation
1. Cavity design of profiles: profiles should adopt multi-cavity structure to reduce heat loss. At the same time, external window insulation components should be coplanar up and down to form an integral insulation surface and eliminate cold bridges, block heat loss channels.
2. Heat insulation strip should be installed in the glass installation tank: increase the number of air chambers, reduce the heat loss between the hollow glass and the profile, and improve the heat insulation effect of the whole window.
3. Casement should adopt T-type heat insulation strip design: Casement the heat insulation strip is designed as T-type, overlapping with the middle adhesive strip to realize the hot and cold partition at the joint of the fan frame. It is forbidden to place the middle rubber strip directly on the aluminum profile of the fan.
4. The heat insulation strip should adopt polyamide 66 (that is, Polyamide66, commonly known as Nylon 66).
5. Glass warm Regula: double glazing unit warm Regula should be set around the cavity to block the cooling channel of the glass cavity.
6. In areas with high requirements for heat transfer coefficient, heat barrier material of heat preservation can be added to the heat insulation cavity of the profile according to the project positioning to meet the k value requirements.
7. Exterior door:
The threshold should be set for the outer vertical hinged door of residents on the first floor of the house leading to the garden. No threshold should be set, and the bottom of the door should be closed with a brush.
The first floor residents of the house open double doors to the garden flat. After closing, the two doors should be bite and lap, and it is forbidden to leave a seam in the middle and close it with a brush.
V. Security technology
1. Glass buckle: The glass buckle should be installed on the indoor side. It is forbidden to turn the in-swinging casement window into outwards opening window so that the buckle is installed on the outdoor side to ensure the requirements of anti-theft, safety and glass replacement, leaving no leakage hidden danger.
2. Lock point: in order to improve the wind pressure resistance and anti-theft performance of the outer window, the outer window should adopt multi-point lock. The lock point setting shall meet the requirements of hardware manufacturer's design and installation manual.
3. The outer door size of the unit entrance should not be too large to ensure the reliability of hardware accessories such as hinge and avoid safety accidents.
Note point 2:
Precautions for door and window engineering
�� 8 �� 5(1) wood types in the comprehensive base price, except for the materials marked as hardwood, other projects are subject to class I and Class II wood species, if the actual use of Class III, for four types of wood species, multiply them by the following coefficients:
�� 8 �� 5 ① make wooden doors and windows, multiply by factor 1.30 according to the corresponding project Labor and machinery;
�� 8 �� 5 ② installation of wooden doors and windows, multiply by factor 1.16 according to the corresponding project Labor and machinery;
�� 8 �� 5 ③ for other wood decoration projects, multiply by the coefficient 1.35 according to the Labor and machinery of the corresponding project.
�� 8 �� 5(2) the section or thickness of the Wood mentioned in the comprehensive base price shall be subject to wool. If the size indicated in the design drawing is net material, the planing loss shall be increased: Board, the planing light on one side of the square material increases by 3mm, and the planing light on both sides increases by 5mm; The volume of log 1m3 increases by 0.05 m3.
�� 8 �� 5(3) wooden staircase, wooden posts, wood beam comprehensive base price sub-items are calculated by planing light.
�� 8 �� 5(4) the comprehensive base price includes 70% drying loss and drying cost.
�� 8 �� 5(5) where the wood section or thickness specified in the design is different from the comprehensive base price, it can be converted according to the notes in the comprehensive base price (including wood drying fee).
�� 8 �� 5(6) wooden doors and windows are subject to the corresponding comprehensive base price regardless of whether they are made on site or in the processing plant, nor whether they are made mechanically or manually. The transportation cost of wooden doors and windows is not calculated separately.
�� 8 �� 5(7) hardware or hardware iron pieces of ordinary doors and windows and factory warehouse doors have been included in the comprehensive base price (excluding L-type, T-type iron and door locks).
�� 8 �� 5(8) in the comprehensive base price of ordinary doors and windows, except for the door leaf, car window shade, yarn brightener, and screen door fan, the rest have been made of frames, fans, lights, installation integration. Screen door. Car window shade when non-iron window screen is actually used, it can be converted.
From Baidu Document Report: eight precautions for door and window installation and construction
1. Scribing positioning
(1) according to the installation position, size and elevation of doors and windows in the design drawings (the entry "elevation" is provided by industry encyclopedia), measure the edges of doors and windows to both sides according to the center line of doors and windows. If it is a multi-storey or high-rise building (the entry "high-rise building" is provided by industry Encyclopedia), the top door and window edge shall prevail, and the door and window edge shall be led offline by Line Pendant or theodolite, and Mark at the door and window of each layer, and cut and chisel some non-straight edges.
(2) the horizontal position of doors and windows should be based on the horizontal line of + 1250px inside the floor to measure the height of leather tag under the window upward and reverse, and the elastic line (the entry "elastic line" is provided by the industry encyclopedia) is straight. Each layer must keep the height of leather tag under the window consistent.
2. Aluminium windows water-covering installation
According to the requirements of the construction drawings, fix the water on the aluminium windows, and ensure that the position is correct and the installation is firm.
3. Anti-corrosion treatment
(1) when the design of anti-corrosion treatment on the outer surface around the door and window frame is required, it shall be handled according to the design requirements. If there is no requirement in the design, anticorrosive paint can be painted or plastic film can be pasted for protection, so as to prevent cement mortar from directly contacting the surface of aluminum alloy doors and windows, producing electrochemical reaction and corroding aluminum alloy doors and windows.
(2) when installing aluminum (entry "aluminum" provided by industry Encyclopedia) alloy (entry "alloy" provided by industry Encyclopedia) doors and windows, if connecting iron parts are used for fixing, connecting iron parts, it is better to use SST part for mounting metal parts such as fasteners. Otherwise, anti-corrosion treatment must be carried out to avoid electrochemical reaction and corrosion of aluminum alloy doors and windows.
4. Installation of aluminum alloy doors and windows in place
Install aluminum alloy door and window frame according to the marked positioning line of doors and windows. And adjust the horizontal, vertical and diagonal length of the door and window frame in time to meet the quality standards, and then temporarily fix it with wooden wedge.
5. Fixing of aluminum alloy doors and windows
(1) When iron parts are embedded on the wall, the iron feet of aluminum alloy doors and windows can be directly welded with the embedded iron parts on the wall, and the welding place needs rust prevention treatment.
(2) when there are no embedded iron parts on the wall, metal expansion bolts or plastic expansion bolts can be used to fix the iron feet of aluminum alloy doors and windows to the wall.
(3) when there are no embedded iron parts on the wall, electric drill can also be used to punch 80mm deep and 6mm diameter holes on the wall, and L-type 80mm × 50mm 6rmn steel bar is used. Stick 108 glue mud on the long end and drive it into the hole. After 108 glue mud is finally solidified, the iron feet of aluminum alloy doors and windows and the embedded 6mm steel bar shall be welded firmly.
6. Treatment of gap between door and window frame and wall
(1) after the installation and fixing of aluminum alloy doors and windows, the concealed engineering acceptance should be carried out first, and the gap between the door and window frame and the wall should be handled timely according to the design requirements after passing the acceptance.
(2) if the design is not required, elastic insulation materials or glass cotton felt (the entry "glass cotton felt" is provided by the industry encyclopedia) can be used to layer fill plug the gap, the outer surface is left with 5~8mm deep notches filled with embedded joint ointment or sealant.
7. Installation of door and window fan and door and window glass
(1) doors and windows fan and doors and windows glass should be installed after the completion of the opening wall surface finishing.
(2) sliding door (entry "sliding door" is provided by industry Encyclopedia) after the window is installed and fixed, the door and window fan with glass is integrated into the slide of the frame, adjust the gap between the frame and the fan.
(3) flat open doors and windows assemble the frame and the fan on the wall at grillwork, install and fix it before installing the glass, that is, adjust the gap between the frame and the fan first, then, make the glass fan and adjust the position, and finally insert sealing strip and sealant.
(4) the floor spring door should be fixed after the door frame and floor spring main engine are installed. First embed the glass into the door leaf grillwork and put the frame together, adjust the gap of the frame leaf, and finally fill in the sealing strip and sealant of the door leaf glass.
From Baidu Document Report: safety precautions for metal doors and windows
1. When entering the site, you must wear a helmet, buckle the belt, and correctly use personal labor protection equipment.
2. Always check whether the tools used are firm.
3. Carry glass with plastic gloves or pack the sharp part of the watch mouth with cloth paper pad.
4. The glass should be placed close to the wall and stacked smoothly to prevent collapse.
5. When assembling at high altitude and window cleaning, you must wear soft sole shoes and fasten the safety belt to ensure safe operation.
6. Doors and windows should be stacked vertically indoors, and they should be leveled with sleepers, fixed firmly and set anti-dumping measures. No air storage, it is strictly prohibited to store with acid and alkali.
7. Install the upper layer Casement, do not throw things down. Do not work on the upper and lower layers in the vertical direction at the same time to avoid the glass falling and hurting people.
8. Aluminum alloy doors and windows should be controlled at the pull node of the building to be firmly tied in centimeters.
9. The method of reserving openings must be adopted for the installation of doors and windows. It is strictly prohibited to use side-mounted side-masonry openings or first-mounted rear masonry openings.
10. The opening and the outer frame, the outer frame is installed with connectors, and the wall is connected with nail gun.
11. Scaffolding and heavy objects shall not be placed on the door and window frame to prevent the doors and windows from being damaged and falling off.
12. Rigging, foot plank, hanging baskets, elevator cage, platforms and other equipment used in suspended operations must be subject to technical identification or verification before use.
13. It is strictly forbidden to climb the window frame and Casement, and work on the outer wall with the body hanging.
