GB 50210-2001 Code for acceptance of quality of building decoration and renovation projects
Some standard content:
GB50210-2001
GB50210-2001《Code for construction qialityacceptptance of building decoration》2006-10-24
National Standard of the People's Republic of China
Code for construction qialityacceptptance of building decorationGB50210-2001
Editor: Ministry of Construction of the People's Republic of ChinaApproval: Ministry of Construction of the People's Republic of ChinaEffective Date: March 1, 2002
Notice on the Issuance of the National Standard "Code for Construction QialityAcceptptance of Building Decoration"According to the requirements of the Ministry of Construction's "Notice on Issuing the 1998 National Standard Formulation and Revision Plan (Second Batch)" (Jianbiao [1998] No. 244), the "Code for Construction QialityAcceptance of Building Decoration" revised by the Ministry of Construction and relevant departments has been reviewed and approved as a national standard by relevant departments, with the number GB50210-2001, and will be implemented on March 1, 2002. Among them, 3.1.1, 3.1.5, 3.2.3, 3.2.9, 3.4, 33.5, 4.1.12, 5.1.11, 6.1.I2, 8.2.4, 8.3.4, 9.1.89.1.13, 9.1.14, 12.5.6 are mandatory provisions and must be strictly enforced. The tenth and eleventh chapters of the original "Code for Construction and Acceptance of Decoration Engineering" (GB210-83), "Code for Construction and Acceptance of Building Decoration Engineering" (JGJ73-91) and "Standard for Inspection and Evaluation of Construction Engineering Quality" (GBJ301-88) are abolished at the same time.
This standard is managed by the Ministry of Construction, the China Academy of Building Research is responsible for the specific interpretation work, and the Standard and Quota Research Institute of the Ministry of Construction organizes the China Building Industry Press to publish and distribute it. Ministry of Construction of the People's Republic of China
November 1, 2001
This standard is revised by the China Academy of Building Research and relevant units in accordance with the requirements of the Ministry of Construction's Document No. 1998244 "Notice on Issuing the 1999 National Standard Formulation and Revision Plan (Second Batch)", which revised the "Construction Decoration Engineering Construction and Acceptance Code" (JGJ73-91) and the "Construction Engineering Quality Inspection and Evaluation Standard" (GBJ301-88). During the revision process, the standard compilation team carried out special research, conducted relatively extensive investigations and studies, summarized the experience of architectural decoration and renovation projects in design, materials and construction over the years, and carried out comprehensive revisions in accordance with the principle of "separation of inspection and evaluation, strengthening acceptance, improving means and process control", and widely solicited opinions from relevant units across the country in various ways, repeatedly revised the main issues, and finally finalized them after review. This standard is the quality acceptance standard that determines whether the decoration and renovation project can be delivered for use. Building decoration and renovation projects are divided into 10 sub-divisions according to construction technology and decoration parts. Except for the ground sub-division, which is a separate volume, the quality acceptance of the other 9 sub-divisions is stipulated by this specification. This specification is divided into 13 chapters. The first three chapters are general provisions, terms and basic regulations. Chapters 4 to 12 are for the quality acceptance of sub-divisions, of which the first section of each chapter is general regulations, and the second and subsequent sections are for the quality acceptance of sub-projects. Chapter 13 is for the quality acceptance of sub-divisions.
This specification may need to be partially revised in the future. The information and content of the relevant partial revisions will be published in the "Engineering Construction Standardization" magazine.
The provisions marked in bold in this specification are mandatory provisions and must be strictly enforced. In order to improve the quality of the specification. Please pay attention to summarizing experience and accumulating information in the process of implementing this specification. Feedback the relevant opinions to China Academy of Building Research (address: No. 30, North Third Ring Road East, Beijing, zip code: 100013) at any time for reference in future revisions. The editor, participating units and main drafters of this specification are: Editor: China Academy of Building Research Participating units of this specification: Beijing Construction Engineering Quality Supervision Center China Construction First Bureau Decoration Company
Shenzhen Construction Engineering Quality Supervision and Inspection Center Shanghai Huili (Group) Company
Shenzhen Science and Technology Yuan Building Decoration Engineering Co., Ltd. Beijing Jianyi Building Engineering Co., Ltd.
Main drafters of the specification: Meng Xiaoping, Hou Maosheng, Zhang Yuanbo, Xiong Wei, Li Aixin, Gong Wansen
Li Zixin, Wu Hongkang, Zhuang Kezhang, Zhang Ming
1 General provisions·
2 Terms,
3 Basic provisions,
3.1 Design
3.2 Materials·
3.3 Construction·
4 Plastering work
4.1 General provisions
4.． 2 General plastering works..
4.3 Decorative plastering works
4.4 Plain masonry jointing works,
5 Door and window works
5.1 General provisions.
..·10-6
.....10-7
.·10-7
5.2 Wooden door and window production and installation works...10-75.3 Metal door and window installation Installation project
5.4 Plastic door and window installation project...
5.5 Special door installation project.
5.6 Door and window glass installation project
6 Ceiling project
6.1 General provisions·
6.2 Concealed keel ceiling project·
6.3 Visible keel ceiling project
7 Lightweight partition wall project
7.1 General provisions.
7.2 Plate partition wall project..
7.3 Frame partition wall project..
7.4 Movable partition wall project
7.5 Glass partition wall project.
8 Decorative panel (brick) project
8.1 General provisions·
8.． 2Decorative panel installation project..
8.3Decorative brick pasting project.·
9Curtain wall project
9.1General provisions·
9.2Glass curtain wall project..
9．3Metal curtain wall project
9.4Stone curtain wall project
10Coating project
10．1General provisions
10．2Water-based paint finishing project….
10.3Solvent-based paint finishing project·…Www.bzxZ.net
10．4Art finishing project.…·
........10-9
...10-10
·10-12
.....10
. 10-13
…·10-13
.·10-14
·10-15
..·10-15||tt| |·10-16
..10-17
·10-18
·10-18
·10-19
. ·10-21
·10-Z3
·10-23
...··10-24
10—24||tt| |·10-25
·10-4
·10-4
.·10-4
.·10--4
·10 -4
·10-4
·10-5
.·10-5
11 Wall covering and soft packing engineering
11.1 General provisions
11.2 Wall covering engineering...
11.3 Soft packing engineering
12 Detailed engineering
12.1 General provisions
12.2 Cabinet production and installation engineering.
.·10--25
·10-26
...10--26
·10-27
·10-27
..·10-27
12．3 Curtain box, window sill and radiator cover production and installation engineering 12 .4 Door and window frame production and installation engineering.
.....10-28
12.5 Guardrail and handrail production and installation engineering 12.6 Decorative decoration production and installation engineering··
13 Sub-project quality acceptance
.....10-29
Appendix A Quality requirements for wood for wooden doors and windows
Appendix B Division table for sub-projects and their sub-items·Appendix C Concealed M project acceptance record table...10-3 Explanation of terms and phrases used in this specification
Explanation of clauses·
1 General principles
·10--28
10—30
..10-27
1.0.1 In order to strengthen the quality management of construction projects.This standard is formulated to unify the quality acceptance of building decoration and renovation projects and ensure the quality of the projects.
10.2 This standard applies to the quality acceptance of decoration and renovation projects for new, expanded, rebuilt and existing buildings. 1.0.3 The requirements for project quality acceptance in the contract, design documents and other technical documents of building decoration and renovation projects shall not be lower than those specified in this standard.
1.0.4 This standard shall be used in conjunction with the national standard "Uniform Standard for Construction Quality Acceptance of Building Projects" (GB50300-2001).
1.0.5 In addition to implementing this standard, the quality acceptance of building decoration and renovation projects shall also comply with the provisions of the current relevant national standards.
2 Terms
2. o. Building decoration and renovation buiodingdecoration Various treatment processes of the internal and external surfaces and spaces of a building using decorative materials or ornaments to protect the main structure of the building, improve the use function of the building and beautify the building. 2.0.2 Primary struclure The main structure or enclosure structure of the building. 2. o.3 Base course The surface layer that directly bears the decoration and renovation construction. 2.0.4 Details
Parts or decorations used locally in architectural decoration and renovation projects. 3 Basic regulations
3.1 Design
3.1. .1 Architectural decoration and renovation projects must be designed and complete construction drawing design documents must be issued. 3.1.2 The unit responsible for the design of architectural decoration and renovation projects should have the corresponding qualifications and establish a quality management system. The design unit shall be responsible for quality problems caused by design reasons. 3.1.3 Architectural decoration and renovation design shall comply with relevant regulations on urban planning, fire protection, environmental protection, energy conservation, etc. 3.1.4 The unit responsible for the design of architectural decoration and renovation projects shall conduct necessary understanding and on-site investigation of the building, and the design depth shall meet the construction requirements.
3.1.5 The design of architectural decoration and renovation projects must ensure the structural safety and main use functions of the building. When the main body and load-bearing structure are changed or the load is increased, the original structural design unit or a design unit with corresponding qualifications must check the relevant original data and verify and confirm the safety of the existing building structure. 3.1.6 The fire protection, lightning protection and earthquake resistance design of building decoration and renovation projects shall comply with the provisions of the current national standards. 3.1.7 When the pipelines in the wall or ceiling may freeze or condense, anti-freezing or anti-condensation design shall be carried out. 3.2 Materials
3.2.1 The types, specifications and quality of materials used in building decoration and renovation projects shall comply with the design requirements and the provisions of the current national standards. When there are no design requirements, they shall comply with the provisions of the current national standards. It is strictly forbidden to use materials that have been explicitly eliminated by the state.
3.2.2 The combustion performance of materials used in building decoration and renovation projects shall comply with the provisions of the current national standards "Code for Fire Protection Design of Building Interior Decoration" (GB50222), "Code for Fire Protection Design of Buildings" (GBJ16) and "Code for Fire Protection Design of High-rise Civil Buildings" (GB5045).
3.2.3 The materials used in building decoration and renovation projects shall comply with the provisions of the national standards for the limit of harmful substances in building decoration and renovation materials.
3.2.． 4 All materials shall be inspected for variety, specification, appearance and size when entering the site. The material packaging shall be intact, and there shall be a product certificate, Chinese instructions and relevant performance test reports; imported products shall be subject to commodity inspection in accordance with regulations. 3.2.5 The types and items of materials that need to be re-inspected after entering the site shall comply with the provisions of each chapter of this specification. The same variety and type of incoming materials produced by the same manufacturer shall be re-inspected by at least one group of samples, and when the contract stipulates otherwise, it shall be implemented in accordance with the contract.
3.2.6 When the state regulations or contractual agreements require witness testing of materials, or when there is a dispute over the quality of materials, witness testing should be carried out:
3.2.7 The unit responsible for testing building decoration materials should have the corresponding qualifications and establish a quality management system. 3.2.8 During the transportation, storage and construction of materials used in building decoration projects, effective measures must be taken to prevent damage, deterioration and environmental pollution.
3.2.9 Materials used in building decoration projects should be treated with fire prevention, anti-corrosion and insect prevention according to design requirements. 3.2.10 Materials prepared on site, such as mortar, adhesives, etc., should be prepared according to design requirements or product instructions. 3.3 Construction
3.3.1 The unit responsible for the construction of building decoration projects should have the corresponding qualifications and establish a quality management system. The construction unit should prepare a construction organization design and it should be reviewed and approved. The construction unit should construct according to the existing construction process standards or approved construction technical plans, and implement quality control over the entire construction process. 3.3.2 Personnel responsible for the construction of building decoration and renovation projects should have qualification certificates for corresponding positions. 3.3.3 The construction quality of building decoration and renovation projects should comply with the design requirements and the provisions of this specification. The construction unit shall be responsible for quality problems caused by violations of the design documents and the provisions of this specification. 3.3.4 During the construction of building decoration and renovation projects, it is strictly prohibited to arbitrarily change the main body of the building, the load-bearing structure or the main use function in violation of the design documents; it is strictly prohibited to dismantle and modify the supporting facilities such as water, heating, electricity, gas, and communication without the design confirmation and approval of the relevant departments. 3.3.5 The construction unit shall comply with the laws and regulations on environmental protection, and shall take effective measures to control the pollution and harm caused to the surrounding environment by various dust, exhaust gas, waste, noise, vibration, etc. at the construction site. 3.3.6 The construction unit shall comply with the laws and regulations on construction safety, labor protection, fire prevention and anti-toxicity, shall establish corresponding management systems, and shall be equipped with necessary equipment, instruments and signs. 3.3.7 The building decoration and renovation project shall be constructed after the quality acceptance of the base or base is qualified. Before decorating and renovating existing buildings, the base layer should be processed and meet the requirements of this specification. 3.3.8 Before the construction of building decoration and renovation projects, there should be samples of the main materials or sample rooms (pieces), and they should be confirmed by the relevant parties.
3.3.9 For building decoration and renovation projects with thermal insulation materials on the wall, the type, variety, specification and construction process of the thermal insulation materials used should meet the design requirements.
3.3.10 The installation and commissioning of pipelines, equipment, etc. should be completed before the construction of building decoration and renovation projects. When they must be carried out simultaneously, they should be completed before the construction of the finishing layer. The decoration and renovation projects shall not affect the use and maintenance of pipelines, equipment, etc. Building decoration and renovation projects involving gas pipelines must
comply with the relevant safety management regulations.
3.3.11 The installation of electrical appliances in building decoration and renovation projects should comply with the design requirements and the provisions of the current national standards. It is strictly forbidden to bury electricity directly without pipe penetration. 3.3.12 The environmental conditions for the construction of indoor and outdoor decoration and renovation projects should meet the requirements of the construction process. The construction environment temperature should not be lower than 5℃. When it is necessary to construct at a temperature lower than 5℃, effective measures should be taken to ensure the quality of the project. 3.3.13 During the construction of building decoration and renovation projects, semi-finished products and finished products should be well protected to prevent pollution and damage. 3.3.14 The construction site should be cleaned up before the acceptance of building decoration and renovation projects. 4 Plastering Project
4.1 General Provisions
4.． 1.1 This chapter applies to the quality acceptance of general plastering, decorative plastering and clear water masonry grouting and other sub-projects. 4.1.2 The following documents and records should be checked during the acceptance of plastering projects: 1 Construction drawings, design instructions and other design documents of plastering projects. 2 Product certificates, performance test reports, on-site acceptance records and re-inspection reports of materials. 3 Acceptance records of concealed projects.
4 Construction records.
4.． 1.3 Plastering works shall be retested for setting time and stability of cement. 4.． 1.4 Plastering works shall be inspected for the following concealed works: 1 Reinforcement measures when total plastering thickness is greater than or equal to 35mm. 2 Reinforcement measures at the junction of different material substrates. 4.． 1:5 Inspection batches of each sub-project shall be divided according to the following provisions: 1 Outdoor plastering works with the same materials, processes and construction conditions shall be divided into one inspection batch for every 500-1000m2, and those with less than 500m2 shall also be divided into one inspection batch.
2 Indoor plastering works with the same materials, processes and construction conditions shall be divided into one inspection batch for every 50 natural rooms (large-area rooms and corridors shall be divided into one room with a plastering area of 30m2), and those with less than 50 rooms shall also be divided into one inspection batch.
4.1:6 The number of inspections shall comply with the following provisions: 1 At least 10% of each indoor inspection batch shall be randomly inspected, and shall not be less than 3 rooms; if there are less than 3 rooms, all rooms shall be inspected. 2 Outdoor inspection batches shall be inspected at least once per 100m2, and each location shall not be less than 10m2. 4.1:7 Before the exterior wall plastering project is constructed, steel and wooden door and window frames shall be installed. Guardrails, etc., and the construction holes on the wall shall be blocked and tightly sealed.
4.1.8 The curing period of lime paste used for plastering should not be less than 15 days; the curing period of ground lime powder used for covering should not be less than 3 days.
4.1.9 The method of the external angle of indoor wall, column and door opening should meet the design requirements. When there is no design requirement, 1:2 cement mortar should be used as dark corner protection, the height of which should not be less than Zm, and the width of each side should not be less than 50mm. 4.1.10 When the plastering layer is required to have waterproof and moisture-proof functions, waterproof mortar should be used. 4.1.11 Before solidification, various mortar plastering layers should be protected from fast, water washing, impact, vibration and freezing. After solidification, measures should be taken to prevent standing
contamination and damage. Cement mortar plastering layers should be maintained under wet conditions. 4.1.12 The plastering layer of the exterior wall and ceiling must be firmly bonded to the base layer and between each plastering layer. 4.2 General plastering engineering
4.2.． 1 This section applies to the quality acceptance of general plastering projects such as lime mortar, cement mortar, cement mixed mortar, polymer cement mortar, hemp lime, paper reinforced lime, gypsum lime, etc. General plastering projects are divided into ordinary plastering and advanced plastering. When there is no design requirement, it shall be accepted as ordinary plastering. Main control items
4.2.2 Before plastering, dust, dirt, oil stains, etc. on the surface of the base layer should be cleaned and sprinkled with water to moisten. Inspection method: Check the construction records.
4.2.3 The variety and performance of materials used for general plastering should meet the design requirements, and the setting time and stability re-test of cement should be qualified. The mix ratio of mortar should meet the design requirements. Inspection method: Check the product certificate of conformity, on-site acceptance record. Re-test report and construction record. 4.2.4 Plastering projects should be carried out in layers. When the total thickness of plastering is greater than or equal to 35mm, strengthening measures should be taken. For the plastering at the junction of different material substrates, reinforcement measures should be taken to prevent cracking. When reinforcement is adopted, the overlap width of the reinforcement mesh and each substrate should not be less than 100mm
Inspection method: Check the acceptance records and construction records of concealed projects. 4.． 2.5 The plastering layer must be firmly bonded to the base layer and between each plastering layer. The plastering layer should not be delaminated or hollow, and the surface layer should not be ash-blasted or cracked.
Inspection method: Observation; tap with a small hammer to check; check construction records General items
4.2.6 The surface quality of general plastering projects should meet the following requirements 1 The surface of ordinary plastering should be smooth, clean, smooth and smooth, and the partition joints should be clear. 2 The surface of high-grade plastering should be smooth, clean, uniform in color, without smearing marks, and the partition joints and gray lines should be clear and beautiful. Inspection method: Observation; hand touch inspection.
4.． 2.7 The plastering surface around the corner guards, holes, grooves and boxes should be neat and smooth; the plastering surface behind the pipe should be flat. Inspection method: observation.
4.2.8 The total thickness of the plastering layer should meet the design requirements: cement mortar shall not be applied on the lime mortar layer, and the covering gypsum plaster shall not be applied on the cement mortar layer.
Inspection method: check the construction records.
4.2.9 The setting of plastering partition joints should meet the design requirements, the width and depth should be uniform, the surface should be smooth, and the edges and corners should be neat. Inspection method: observation; measurement inspection
4.2.10 Drip lines (grooves) should be made in areas with drainage requirements. The drip lines (grooves) should be neat and straight, the drip lines should be high inside and low outside, and the width and depth of the drip grooves should not be less than 10mm. Inspection method: observation; measurement inspection.
4.2.11 The allowable deviation and inspection method of the quality of general plastering works shall comply with the provisions of Table 4.2.11. Table 4.2.11 Allowable deviation and inspection method of general plastering Item Item Allowable deviation (mm) Inspector Method General plastering Advanced plastering
1 Verticality of facade 43 Check with 2m vertical ruler and feeler gauge 2 Surface flatness 43 Check with 2m straight ruler and feeler gauge 3 Squareness of internal and external corners 43 Check with right-angle detection ruler 4 Straightness of grid strips (seam) 43 Draw a 5m line, if less than 5m, draw a through line, and check with a steel ruler 5 Straightness of wall skirt and base top 43 Draw a 5m line, if less than 5m, draw a through line, and check with a steel ruler Note: 1) For general plastering, the squareness of internal corners in item 3 of this table may not be checked; 2) For ceiling plastering, the surface flatness in item 2 of this table may not be checked, but it should be smooth. 4.． 3 Decorative plastering works
4: 3.1 This section applies to the main control items for quality acceptance of decorative plastering works such as water-brushed stone, artificial stone, dry-bonded stone, and false face bricks
4.3.2 Dust, dirt, oil stains, etc. on the surface of the base layer should be cleaned before plastering, and water should be sprinkled to moisten it. Inspection method: Check the construction records.
4.3.3 The variety and performance of materials used in decorative plastering works should meet the design requirements. The setting time and stability re-test of cement should be qualified. The mix ratio of mortar should meet the design requirements. Inspection method: Check the product certificate of conformity, on-site acceptance records. Re-test report and construction records, 4.3.4 Plastering works should be carried out in layers. When the total thickness of plastering is greater than or equal to 35mm, strengthening measures should be taken. For the plastering at the junction of different material substrates, reinforcement measures should be taken to prevent cracking. When a reinforcement mesh is used, the overlap width between the reinforcement mesh and each substrate should not be less than 100mm
Inspection method: Check the acceptance records and construction records of concealed projects 4.3.5 Each plaster layer and the plaster layer and the substrate must be firmly bonded, and the plaster layer should not have delamination, hollowing and cracks. Inspection method: Observation; tapping with a small hammer to check; check the construction records. General items
4.3.6 The surface quality of decorative plastering projects should meet the following requirements: 1 The surface of water-brushed stone should have clear stone particles, uniform distribution, tight and flat, and uniform color, and there should be no drop of particles and joint marks. 2 The brake pattern on the surface of the fake stone should be uniform and straight, with consistent depth and shallowness, and there should be no missing brake points; the positive corners should be horizontally braked and leave uniform width and narrow strips, and the edges and corners should be free of damage.
3 The surface of dry-bonded stone should have a uniform color. No exposed mortar, no leakage, the stone particles should be firmly bonded and evenly distributed, and there should be no obvious black edges at the positive corners.
4 The surface of the false face brick should be flat, the grooves should be clear, and the gaps should be open. The color should be consistent, and there should be no defects such as corner loss, peeling, and sanding. Inspection method: observation; hand touch inspection.
4.3.7 The setting of decorative plastering grid strips (joints) should meet the design requirements. The width and depth should be uniform, the surface should be flat and smooth, and the edges and corners should be neat
Inspection method: observation.
4.3.8 Drip lines (grooves) should be made in areas with drainage requirements. The drip lines (grooves) should be neat and straight, the drip lines should be high inside and low outside, and the width and depth of the drip grooves should not be less than 10mm. Inspection method: observation: measurement inspection.
4.. 3.9 The allowable deviation and inspection method of the quality of decorative plastering projects shall comply with the provisions of Table 4.3.9. 4.3.9 4.3.9 Allowable deviations and test methods for decorative plastering Item Responsible Item Allowable deviation (mm) Test method Water-brushed stone Cut false stone Dry-glued stone False facing brick
1 Verticality of facade 5455 Check with a 2m vertical inspection ruler 2 Surface flatness 3334 Check with a 2m straightedge and feeler gauge 3 Squareness of external corners 3334 Check with a right-angle inspection ruler 4
Straightness of dividing strips (joints) 3333 Draw a 5m line. If it is less than 5m, draw a straight line and check with a steel ruler 5 Straightness of wall skirt and base top 33- Draw a 5m line. If it is less than 5m, draw a straight line and check with a steel ruler 4.4 Plain masonry grouting project
4.4.1 This section applies to the main control items for quality acceptance of plain masonry mortar grouting and original mortar grouting
4.4.2 The setting time and stability test of cement used for plain masonry grouting should be qualified. The mix ratio of mortar should meet the design requirements.
Inspection method: Check the re-inspection report and construction records. 4.4.3 There should be no missing joints in the exposed masonry. The jointing materials should be firmly bonded and free of cracks. Inspection method: Observation.
General items
4.4.4 The exposed masonry joints should be horizontal and vertical, the joints should be smooth, the degree and depth should be uniform, and the surface should be compacted and smoothed. Inspection method: Observation; measurement and inspection.
4.4.5 The mortar joints should be of uniform color and the masonry surface should be clean. Inspection method: Observation.
5 Door and window engineering
5.1 General provisions
5.1.1. This chapter applies to the quality acceptance of sub-projects such as wooden door and window production and installation, metal door and window installation, plastic door and window installation, special door installation, and door and window glass installation.
5.1.2 The following documents and records should be checked during the acceptance of door and window projects: 1 Construction drawings, design instructions and other design documents of door and window projects 2 Product certificates, performance test reports, on-site acceptance records and re-inspection reports of materials. 3 Production license documents for special doors and their accessories. 4 Acceptance records of concealed projects.
5 Construction records.
5.1.3 The following materials and their performance indicators should be re-inspected for door and window projects; 1 Formaldehyde content of artificial wood boards.
2 Wind pressure resistance, air permeability and rainwater leakage performance of metal windows and plastic windows on the exterior walls of buildings 5.1.4 The following concealed project items should be accepted for door and window projects: 1 Embedded parts and anchors.
2 Anti-corrosion and filling treatment of concealed parts.
5.1.5 The inspection batches of each sub-project should be divided according to the following provisions: 1 Wooden doors and windows, metal doors and windows of the same variety, type and specification. Every 100 pieces of plastic doors and windows and door and window glass should be divided into one inspection batch, and those less than 100 pieces should also be divided into one inspection batch. 2 Special doors of the same variety, type and specification should be divided into one inspection batch for every 50 pieces, and those less than 50 pieces should also be divided into one inspection batch.
5.1:6 The number of inspections shall comply with the following provisions: 1 For wooden doors and windows, metal doors and windows, plastic doors and windows and door and window glass, at least 5% of each inspection batch shall be randomly inspected, and shall not be less than 3 pieces. If less than 3 pieces, all pieces shall be inspected; for exterior windows of high-rise buildings, at least 10% of each inspection batch shall be randomly inspected, and shall not be less than 6 pieces. If less than 6 pieces, all pieces shall be inspected.
2 For special doors, at least 50% of each inspection batch shall be randomly inspected, and shall not be less than 10 pieces. If less than 10 pieces, all pieces shall be inspected. 5.1.7 Before installing doors and windows, the dimensions of door and window openings shall be inspected. 5.1.8 The installation of metal doors and windows and plastic doors and windows shall be constructed by the method of reserving holes, and the method of installing while building the openings or installing first and then building the openings shall not be used.
5.1.9 The contact between wooden doors and windows and masonry, concrete or plaster layer shall be treated with anti-corrosion and a moisture-proof layer shall be set; wooden bricks buried in masonry or concrete shall be treated with anti-corrosion. 5.1.10 When metal windows or plastic windows are combined, the size, specification and wall thickness of their splicing materials shall meet the design requirements. 5.1.11 The installation of doors and windows outside the building must be firm. It is strictly forbidden to use nails to fix doors and windows on masonry. 5.1.12 In addition to complying with the design requirements and the provisions of this specification, the installation of special doors shall also comply with the relevant professional standards and regulations of the competent authorities.
5.2 Wooden door manufacturing and installation engineering
5.2.1 This section applies to the quality acceptance of wooden door and window manufacturing and installation engineering. Main control items
5.2.2 Wood species, material grade, specifications and dimensions of wooden doors and windows. The linear type of the frame and sash and the formaldehyde content of the artificial wood board shall meet the design requirements. When the design does not specify the material grade, the quality of the wood used shall meet the requirements of Appendix A of this specification. Inspection method: observation; check the material on-site acceptance record and re-inspection report. 5.2.3 Wooden doors and windows shall use dried wood, and the moisture content shall meet the requirements of "Architectural Wooden Doors and Windows" (JG/T122). Inspection method: check the material on-site acceptance record. 5.2.4 The fire prevention, anti-corrosion and insect prevention treatment of wooden doors and windows shall meet the design requirements. Inspection method: observation; check the material on-site acceptance record. 5.2.5 There shall be no knots or filled knots at the joints and installation accessories of wooden doors and windows. If there are dead knots within the allowable limit and insect holes with larger diameters in wooden doors and windows, they shall be filled with wooden plugs of the same material and glue. For varnished products, the wood grain and color of the wooden plugs shall be consistent with the products.
Inspection method: observation.
5.2.6 Door and window frames and door and window sashes with a thickness greater than 50mm shall be connected with double samples. Sample grooves shall be tightly fitted with glue and tightened with glue wedges.
Inspection method: observation; manual inspection.
5.． 2.7 Plywood doors, fiberboard doors and molded doors shall not be debonded. Plywood shall not be planed through the surface veneer and shall not have warps. When making plywood doors and fiberboard doors, the frame and cross-ribs shall be on the same plane, and the surface layer, frame and cross-ribs shall be pressure-bonded. The cross-ribs and upper and lower headers shall each be drilled with more than two ventilation holes, and the ventilation holes shall be unobstructed. Inspection method: observation.
5.． 2.8 The variety, type, specification, opening direction, installation position and connection method of wooden doors and windows shall meet the design requirements. Inspection method: observation; measurement inspection; inspection of the product certificate of the finished door. 5.2.9 The installation of wooden door and window frames must be firm. The anti-corrosion treatment of pre-prepared wood bricks, the number, position and fixing method of wooden door and window frame fixing points should meet the design requirements.
Inspection method: observation; manual inspection; inspection of hidden project acceptance records and construction records 5.2.10 Wooden door and window sashes must be installed firmly, and should be flexible to open and close, close tightly, and not warp up Inspection method: observation; opening and closing inspection; manual inspection. 5.2.11 The model, specification and quantity of wooden door and window accessories should meet the design requirements, the installation should be firm, the position should be correct, and the function should meet the use requirements.
Inspection method: observation; opening and closing inspection; manual inspection. General items
5.2.12 The surface of wooden doors and windows should be clean, without planing marks or hammer marks. Inspection method: observation.
5.2.13 The corners and joints of wooden doors and windows should be tight and flat; door and window frames. The cut edge of the sash should be straight and the planed surface should be flat. Inspection method: observation.
5.2.14 The grooves and holes on wooden doors and windows should have neat edges and no burrs. Inspection method: observation.
5.2.15 The filling materials for the gaps between wooden doors and windows and walls should meet the design requirements and the filling should be full. In cold areas, the gaps between the masonry of external doors and windows (or door and window frames) should be filled with insulation materials. Inspection method: tap the door and window frames to check; check the hidden project inspection records and construction records. 5.2.16 The installation of water-proofing, cover strips, pressure strips, and sealing strips for wooden doors and windows should be straight, and the combination with doors and windows should be firm and tight. Inspection method: observation; manual inspection.
5.2.17 The allowable deviations and inspection methods for the production of wooden doors and windows shall comply with the provisions of 5.2.17. Table 5.2.17 Allowable deviations and inspection methods for the production of wooden doors and windows Item Component name Allowable deviation (mm) Inspection method Ordinary Advanced
1 Warping Frame 32 Place the frame and sash flat on the inspection platform, and check the sash with a feeler gauge 22
2 Difference in diagonal length Frame, 32 Check with a steel ruler, measure the outer angle of the cut 3 Surface flatness sash 22 Check with a 1m ruler and feeler gauge 4 Height and width Frame 0; -20; -2 Check with a steel ruler, measure the inner angle of the cut for the frame, and the outer angle of the sash sash +2; 0+2; 0
5 Difference in height at the junction of the cut and lines Frame, sash 10.5 Check with a steel ruler and a feeler gauge 6 Distance between the ends of adjacent sub-sashes 21 Check with a steel ruler 5.． 2.18 The gap limit, allowable deviation and inspection method for the installation of wooden doors and windows shall comply with the provisions of Table 5.2.18. Table 5.2.18 The gap limit, allowable deviation and inspection method for the installation of wooden doors and windows Item
Item Gap limit (mm) Allowable deviation (mm) Inspection method
Ordinary high-grade ordinary high-grade Check with a steel ruler
1 Difference in length between the diagonal lines of the door and window notches
2 Verticality of the front and side surfaces of the door and window frames
3 Frame and sash,
——21
4 Joint gap between door and window sashes 1~2.51.5~2
5 Joint gap between double-leaf doors of industrial plants 2~5
6 Joint gap between door and window sashes and Gap between upper frames 1~21~1.5
7 Gap between window sash and side frame 12.511.5
8 Gap between window sash and lower frame 2°322.5
9 Gap between door leaf and lower frame 3~53~4
10 Spacing between inner and outer frames of double-layer doors and windows
32 Check with 1m vertical measuring ruler
21 Check with steel ruler and feeler gauge
Check with feeler gauge
43 Check with steel ruler
11 Gap between door leaf and ground when there is no lower frame External door 4~75~6 Check with feeler gauge9 The contact between wooden doors and windows and masonry, concrete or plastering layers shall be treated with anti-corrosion and a moisture-proof layer shall be provided; wooden bricks buried in masonry or concrete shall be treated with anti-corrosion. 5.1.10 When metal windows or plastic windows are combined, the size, specification and wall thickness of the materials used shall meet the design requirements. 5.1.11 The installation of doors and windows outside the building must be firm. It is strictly forbidden to use nails to fix doors and windows on masonry. 5.1.12 In addition to meeting the design requirements and the provisions of this specification, the installation of special doors shall also meet the relevant professional standards and regulations of the competent authorities.
5.2 Wooden door manufacturing and installation engineering
5.2.1 This section applies to the quality acceptance of wooden door and window manufacturing and installation engineering. Main control items
5.2.2 The wood species, material grade, specification and size of wooden doors and windows. The linear type of the frame and sash and the formaldehyde content of the artificial wood board shall meet the design requirements. When the material grade is not specified in the design, the quality of the wood used shall meet the provisions of Appendix A of this specification. Inspection method: Observation; Check the material on-site acceptance record and re-inspection report. 5.2.3 Wooden doors and windows should use dried wood, and the moisture content should comply with the provisions of "Architectural Wooden Doors and Windows" (JG/T122). Inspection method: Check the material on-site acceptance record. 5.2.4 The fire prevention, anti-corrosion and insect prevention treatment of wooden doors and windows should meet the design requirements. Inspection method: Observation; Check the material on-site acceptance record. 5.2.5 There should be no knots or filled knots at the joints and installation accessories of wooden doors and windows. If there are dead knots within the allowable limit and insect holes with larger diameters in wooden doors and windows, they should be filled with wooden plugs of the same material and glued. For varnished products, the wood grain and color of the wooden plugs should be consistent with the products.
Inspection method: Observation.
5.2.6 Door and window frames and door and window sashes with a thickness greater than 50mm should be connected with double samples. The sample grooves should be tightly fitted with glue and tightened with glue wedges.
Inspection method: Observation; manual inspection.
5.． 2.7 Plywood doors, fiberboard doors and molded doors shall not be debonded. The surface veneer of plywood shall not be planed through, and there shall be no warps. When making plywood doors and fiberboard doors, the frame and cross-ribs shall be on the same plane, and the surface layer, frame and cross-ribs shall be pressure-bonded. The cross-ribs and upper and lower headers shall each be drilled with more than two air holes, and the air holes shall be unobstructed. Inspection method: Observation.
5.． 2.8 The variety, type, specification, opening direction, installation position and connection method of wooden doors and windows shall meet the design requirements. Inspection method: Observation; measurement inspection; check the product certificate of the finished door. 5.2.9 The installation of wooden door and window frames must be firm. The anti-corrosion treatment of pre-treated wood bricks, the number, position and fixing method of the fixing points of wooden door and window frames shall meet the design requirements.
Inspection method: observation; manual inspection; inspection of hidden project acceptance records and construction records 5.2.10 Wooden doors and windows must be installed firmly, and should be flexible to open and close, close tightly, and not be tilted. Inspection method: observation; opening and closing inspection; manual inspection. 5.2.11 The model, specification and quantity of wooden door and window accessories should meet the design requirements, the installation should be firm, the position should be correct, and the function should meet the use requirements.
Inspection method: observation; opening and closing inspection; manual inspection. General items
5.2.12 The surface of wooden doors and windows should be clean, without planing marks or hammer marks. Inspection method: observation.
5.2.13 The corners and joints of wooden doors and windows should be tight and flat; the door and window frames. The cut edges of the sash should be straight, the planing surface should be flat, and the inspection method: observation.
5.2.14 The grooves and holes on wooden doors and windows should have neat edges and no burrs. Inspection method: observation.
5.2.15 The filling materials for the gaps between wooden doors and windows and walls should meet the design requirements and should be filled fully. In cold areas, the gaps between the masonry of external doors and windows (or door and window frames) should be filled with insulation materials. Inspection method: tap the door and window frames for inspection; check the hidden project inspection records and construction records. 5.2.16 The water-proofing, cover strips, pressure strips, and sealing strips of wooden doors and windows should be installed straight, and the combination with the doors and windows should be firm and tight. Inspection method: observation; manual inspection.
5.2.17 The allowable deviations and inspection methods for the production of wooden doors and windows shall comply with the provisions of 5.2.17. Table 5.2.17 Allowable deviations and inspection methods for the production of wooden doors and windows Item Component name Allowable deviation (mm) Inspection method Ordinary Advanced
1 Warping Frame 32 Place the frame and sash flat on the inspection platform, and check the sash with a feeler gauge 22
2 Difference in diagonal length Frame, 32 Check with a steel ruler, measure the outer angle of the cut 3 Surface flatness sash 22 Check with a 1m ruler and feeler gauge 4 Height and width Frame 0; -20; -2 Check with a steel ruler, measure the inner angle of the cut for the frame, and the outer angle of the sash sash +2; 0+2; 0
5 Difference in height at the junction of the cut and lines Frame, sash 10.5 Check with a steel ruler and a feeler gauge 6 Distance between the ends of adjacent sub-sashes 21 Check with a steel ruler 5.． 2.18 The gap limit, allowable deviation and inspection method for the installation of wooden doors and windows shall comply with the provisions of Table 5.2.18. Table 5.2.18 The gap limit, allowable deviation and inspection method for the installation of wooden doors and windows Item
Item Gap limit (mm) Allowable deviation (mm) Inspection method
Ordinary high-grade ordinary high-grade Check with a steel ruler
1 Difference in length of diagonal pairs of door and window notches
2 Verticality of the front and side surfaces of door and window frames
3 Frame and sash,
——21
4 Joint gap between door and window sashes 1~2.51.5~2
5 Joint gap between double-leaf doors of industrial plants 2~5
6 Joint gap between door and window sashes and Gap between upper frames 1~21~1.5
7 Gap between window sash and side frame 12.511.5
8 Gap between window sash and lower frame 2°322.5
9 Gap between door leaf and lower frame 3~53~4
10 Spacing between inner and outer frames of double-layer doors and windows
32 Check with 1m vertical measuring ruler
21 Check with steel ruler and feeler gauge
Check with feeler gauge
43 Check with steel ruler
11 Gap between door leaf and ground when there is no lower frame External door 4~75~6 Check with feeler gauge9 The contact between wooden doors and windows and masonry, concrete or plastering layers shall be treated with anti-corrosion and a moisture-proof layer shall be provided; wooden bricks buried in masonry or concrete shall be treated with anti-corrosion. 5.1.10 When metal windows or plastic windows are combined, the size, specification and wall thickness of the materials used shall meet the design requirements. 5.1.11 The installation of doors and windows outside the building must be firm. It is strictly forbidden to use nails to fix doors and windows on masonry. 5.1.12 In addition to meeting the design requirements and the provisions of this specification, the installation of special doors shall also meet the relevant professional standards and regulations of the competent authorities.
5.2 Wooden door manufacturing and installation engineering
5.2.1 This section applies to the quality acceptance of wooden door and window manufacturing and installation engineering. Main control items
5.2.2 The wood species, material grade, specification and size of wooden doors and windows. The linear type of the frame and sash and the formaldehyde content of the artificial wood board shall meet the design requirements. When the material grade is not specified in the design, the quality of the wood used shall meet the provisions of Appendix A of this specification. Inspection method: Observation; Check the material on-site acceptance record and re-inspection report. 5.2.3 Wooden doors and windows should use dried wood, and the moisture content should comply with the provisions of "Architectural Wooden Doors and Windows" (JG/T122). Inspection method: Check the material on-site acceptance record. 5.2.4 The fire prevention, anti-corrosion and insect prevention treatment of wooden doors and windows should meet the design requirements. Inspection method: Observation; Check the material on-site acceptance record. 5.2.5 There should be no knots or filled knots at the joints and installation accessories of wooden doors and windows. If there are dead knots within the allowable limit and insect holes with larger diameters in wooden doors and windows, they should be filled with wooden plugs of the same material and glued. For varnished products, the wood grain and color of the wooden plugs should be consistent with the products.
Inspection method: Observation.
5.2.6 Door and window frames and door and window sashes with a thickness greater than 50mm should be connected with double samples. The sample grooves should be tightly fitted with glue and tightened with glue wedges.
Inspection method: Observation; manual inspection.
5.． 2.7 Plywood doors, fiberboard doors and molded doors shall not be debonded. The surface veneer of plywood shall not be planed through, and there shall be no warps. When making plywood doors and fiberboard doors, the frame and cross-ribs shall be on the same plane, and the surface layer, frame and cross-ribs shall be pressure-bonded. The cross-ribs and upper and lower headers shall each be drilled with more than two air holes, and the air holes shall be unobstructed. Inspection method: Observation.
5.． 2.8 The variety, type, specification, opening direction, installation position and connection method of wooden doors and windows shall meet the design requirements. Inspection method: Observation; measurement inspection; check the product certificate of the finished door. 5.2.9 The installation of wooden door and window frames must be firm. The anti-corrosion treatment of pre-treated wood bricks, the number, position and fixing method of the fixing points of wooden door and window frames shall meet the design requirements.
Inspection method: observation; manual inspection; inspection of hidden project acceptance records and construction records 5.2.10 Wooden doors and windows must be installed firmly, and should be flexible to open and close, close tightly, and not be tilted. Inspection method: observation; opening and closing inspection; manual inspection. 5.2.11 The model, specification and quantity of wooden door and window accessories should meet the design requirements, the installation should be firm, the position should be correct, and the function should meet the use requirements.
Inspection method: observation; opening and closing inspection; manual inspection. General items
5.2.12 The surface of wooden doors and windows should be clean, without planing marks or hammer marks. Inspection method: observation.
5.2.13 The corners and joints of wooden doors and windows should be tight and flat; the door and window frames. The cut edges of the sash should be straight, the planing surface should be flat, and the inspection method: observation.
5.2.14 The grooves and holes on wooden doors and windows should have neat edges and no burrs. Inspection method: observation.
5.2.15 The filling materials for the gaps between wooden doors and windows and walls should meet the design requirements and should be filled fully. In cold areas, the gaps between the masonry of external doors and windows (or door and window frames) should be filled with insulation materials. Inspection method: tap the door and window frames for inspection; check the hidden project inspection records and construction records. 5.2.16 The water-proofing, cover strips, pressure strips, and sealing strips of wooden doors and windows should be installed straight, and the combination with the doors and windows should be firm and tight. Inspection method: observation; manual inspection.
5.2.17 The allowable deviations and inspection methods for the production of wooden doors and windows shall comply with the provisions of 5.2.17. Table 5.2.17 Allowable deviations and inspection methods for the production of wooden doors and windows Item Component name Allowable deviation (mm) Inspection method Ordinary Advanced
1 Warping Frame 32 Place the frame and sash flat on the inspection platform, and check the sash with a feeler gauge 22
2 Difference in diagonal length Frame, 32 Check with a steel ruler, measure the outer angle of the cut 3 Surface flatness sash 22 Check with a 1m ruler and feeler gauge 4 Height and width Frame 0; -20; -2 Check with a steel ruler, measure the inner angle of the cut for the frame, and the outer angle of the sash sash +2; 0+2; 0
5 Difference in height at the junction of the cut and lines Frame, sash 10.5 Check with a steel ruler and a feeler gauge 6 Distance between the ends of adjacent sub-sashes 21 Check with a steel ruler 5.． 2.18 The gap limit, allowable deviation and inspection method for the installation of wooden doors and windows shall comply with the provisions of Table 5.2.18. Table 5.2.18 The gap limit, allowable deviation and inspection method for the installation of wooden doors and windows Item
Item Gap limit (mm) Allowable deviation (mm) Inspection method
Ordinary high-grade ordinary high-grade Check with a steel ruler
1 Difference in length of diagonal pairs of door and window notches
2 Verticality of the front and side surfaces of door and window frames
3 Frame and sash,
——21
4 Joint gap between door and window sashes 1~2.51.5~2
5 Joint gap between double-leaf doors of industrial plants 2~5
6 Joint gap between door and window sashes and Gap between upper frames 1~21~1.5
7 Gap between window sash and side frame 12.511.5
8 Gap between window sash and lower frame 2°322.5
9 Gap between door leaf and lower frame 3~53~4
10 Spacing between inner and outer frames of double-layer doors and windows
32 Check with 1m vertical measuring ruler
21 Check with steel ruler and feeler gauge
Check with feeler gauge
43 Check with steel ruler
11 Gap between door leaf and ground when there is no lower frame External door 4~75~6 Check with feeler gauge11 The model, specification and quantity of wooden door and window accessories should meet the design requirements, the installation should be firm, the position should be correct, and the function should meet the use requirements.
Inspection method: observation; opening and closing inspection; hand lever inspection. General items
5.2.12 The surface of wooden doors and windows should be clean, without planing marks or hammer marks. Inspection method: observation.
5.2.13 The corner cutting and joints of wooden doors and windows should be tight and smooth; the door and window frames. The cut edges of the sash should be straight, the planing surface should be smooth, and the inspection method: observation.
5.2.14 The edges of the grooves and holes on the wooden doors and windows should be neat and free of burrs. Inspection method: observation.
5.2.15 The filling materials of the gaps between wooden doors and windows and the wall should meet the design requirements and the filling should be full. In cold areas, the gaps between the masonry of external doors and windows (or door and window frames) should be filled with thermal insulation materials. Inspection method: Check by tapping the door and window frames; check the hidden engineering inspection records and construction records. 5.2.16 The waterproofing strips, cover strips, pressure strips and sealing strips of wooden doors and windows should be installed straight and firmly and tightly connected with the doors and windows. Inspection method: Observation; manual inspection.
5.2.17 The allowable deviations and inspection methods for the production of wooden doors and windows shall comply with the provisions of 5.2.17. Table 5.2.17 Allowable deviations and inspection methods for the production of wooden doors and windows Item Component name Allowable deviation (mm) Inspection method Ordinary Advanced
1 Warping Frame 32 Place the frame and sash flat on the inspection platform, and check the sash with a feeler gauge 22
2 Difference in diagonal length Frame, 32 Check with a steel ruler, measure the outer angle of the cut 3 Surface flatness sash 22 Check with a 1m ruler and feeler gauge 4 Height and width Frame 0; -20; -2 Check with a steel ruler, measure the inner angle of the cut for the frame, and the outer angle of the sash sash +2; 0+2; 0
5 Difference in height at the junction of the cut and lines Frame, sash 10.5 Check with a steel ruler and a feeler gauge 6 Distance between the ends of adjacent sub-sashes 21 Check with a steel ruler 5.． 2.18 The gap limit, allowable deviation and inspection method for the installation of wooden doors and windows shall comply with the provisions of Table 5.2.18. Table 5.2.18 The gap limit, allowable deviation and inspection method for the installation of wooden doors and windows Item
Item Gap limit (mm) Allowable deviation (mm) Inspection method
Ordinary high-grade ordinary high-grade Check with a steel ruler
1 Difference in length between the diagonal lines of the door and window notches
2 Verticality of the front and side surfaces of the door and window frames
3 Frame and sash,
——21
4 Joint gap between door and window sashes 1~2.51.5~2
5 Joint gap between double-leaf doors of industrial plants 2~5
6 Joint gap between door and window sashes and Gap between upper frames 1~21~1.5
7 Gap between window sash and side frame 12.511.5
8 Gap between window sash and lower frame 2°322.5
9 Gap between door leaf and lower frame 3~53~4
10 Spacing between inner and outer frames of double-layer doors and windows
32 Check with 1m vertical measuring ruler
21 Check with steel ruler and feeler gauge
Check with feeler gauge
43 Check with steel ruler
11 Gap between door leaf and ground when there is no lower frame External door 4~75~6 Check with feeler gauge11 The model, specification and quantity of wooden door and window accessories should meet the design requirements, the installation should be firm, the position should be correct, and the function should meet the use requirements.
Inspection method: observation; opening and closing inspection; hand lever inspection. General items
5.2.12 The surface of wooden doors and windows should be clean, without planing marks or hammer marks. Inspection method: observation.
5.2.13 The corner cutting and joints of wooden doors and windows should be tight and smooth; the door and window frames. The cut edges of the sash should be straight, the planing surface should be smooth, and the inspection method: observation.
5.2.14 The edges of the grooves and holes on the wooden doors and windows should be neat and free of burrs. Inspection method: observation.
5.2.15 The filling materials of the gaps between wooden doors and windows and the wall should meet the design requirements and the filling should be full. In cold areas, the gaps between the masonry of external doors and windows (or door and window frames) should be filled with thermal insulation materials. Inspection method: Check by tapping the door and window frames; check the hidden engineering inspection records and construction records. 5.2.16 The waterproofing strips, cover strips, pressure strips and sealing strips of wooden doors and windows should be installed straight and firmly and tightly connected with the doors and windows. Inspection method: Observation; manual inspection.
5.2.17 The allowable deviations and inspection methods for the production of wooden doors and windows shall comply with the provisions of 5.2.17. Table 5.2.17 Allowable deviations and inspection methods for the production of wooden doors and windows Item Component name Allowable deviation (mm) Inspection method Ordinary Advanced
1 Warping Frame 32 Place the frame and sash flat on the inspection platform, and check the sash with a feeler gauge 22
2 Difference in diagonal length Frame, 32 Check with a steel ruler, measure the outer angle of the cut 3 Surface flatness sash 22 Check with a 1m ruler and feeler gauge 4 Height and width Frame 0; -20; -2 Check with a steel ruler, measure the inner angle of the cut for the frame, and the outer angle of the sash sash +2; 0+2; 0
5 Difference in height at the junction of the cut and lines Frame, sash 10.5 Check with a steel ruler and a feeler gauge 6 Distance between the ends of adjacent sub-sashes 21 Check with a steel ruler 5.． 2.18 The gap limit, allowable deviation and inspection method for the installation of wooden doors and windows shall comply with the provisions of Table 5.2.18. Table 5.2.18 The gap limit, allowable deviation and inspection method for the installation of wooden doors and windows Item
Item Gap limit (mm) Allowable deviation (mm) Inspection method
Ordinary high-grade ordinary high-grade Check with a steel ruler
1 Difference in length between the diagonal lines of the door and window notches
2 Verticality of the front and side surfaces of the door and window frames
3 Frame and sash,
——21
4 Joint gap between door and window sashes 1~2.51.5~2
5 Joint gap between double-leaf doors of industrial plants 2~5
6 Joint gap between
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