How to do the inspection batch of exterior wall insulation

There are many divisions, and some areas have area segmentation requirements.

It can be divided into four facades according to the number of floors and the east, west, north and south (the thickness of the four facades of some insulation projects is inconsistent).

Exterior wall insulation is only made of mesh cloth and anti-crack mortar.

The inspection batch, not to do insulation physical materials, but also to do the inspection batch, the project you are talking about may be a continuation of the project, but the information can not be less. Specifically:

1. The inspection batch of materials can refer to the GB50411-2007 building energy-saving engineering construction quality acceptance specification page.

2. The inspection batch of grid cloth and anti-crack mortar is uniformly used in the construction engineering software (building energy-saving insulation external wall external insulation inspection batch quality acceptance record)** in the main control project selection. General project options. Remember, no matter how many items you do for energy-saving projects, you must have them.

Take the HF and HFS materials I know, for example, with the number of insulation materials used, 5000 square meters as an inspection batch.

Polystyrene board should be 5000 square meters, pulp by tons, and now there are many square meters of new materials for an inspection batch.

The density of the EPS insulation board used shall not be less than 22kg m3. On-site random sampling, number of samples: 9 samples.

Represents batch size 1000. After the completion of each process, check the flatness in all directions with a 2m flat plate ruler, and check the verticality with a line drop ruler, and the standard is that the deviation between the vertical and the entrainment degree is not more than 3mm.

Random sampling inspection, every 100 random inspection points, if the point does not meet the design requirements, then increase the sampling inspection points for every 30 points, and make a record, to be made mathematical statistics, quality assessment.

Scope 1, the scope of application of this regulation: the construction and acceptance of the external thermal insulation system of industrial and civil buildings with polystyrene board as the insulation material, polymer adhesive mortar as the adhesive material, polymer plastering mortar as the plastering layer, alkali-resistant glass fiber plastic-coated mesh cloth as the reinforcing material and supplemented by clamping nails for anchoring.

2. Requirements for construction personnel: Organize the construction team according to the size and schedule requirements of the project. Before the start of construction, the construction personnel are educated on ideology, technology, quality and safety to ensure the quality and progress of the project.

The Code for Acceptance of Construction Quality of Building Energy Conservation Projects (GB50411-2007) is also explained.

The density of the EPS insulation board used shall not be less than 22kg m3.

On-site random sampling, number of samples: 9 samples. Represents batch size 1000. Inspection item: insulation board drawing.

Standard: JGJ144-2008

Provisions on the implementation of witness sampling and inspection for housing construction projects and municipal infrastructure projects Ministry of Construction Document [2000] No. 211 Article 5 stipulates that 30% witness sampling.

What are the testing contents of external wall insulation?

the detection content of external wall insulation;

1. The retest and detection of the materials of the entire external thermal insulation system, including the retest detection of the insulation board, the detection of the mesh cloth, the detection of the insulation nail, the detection of the adhesive, and the plastering mortar.

and the detection of rubber powder particles; The batch of testing is determined according to the height of the engineering building, if the building is below 20 floors, each building should be tested for 3 batches of the above materials, and each building above 20 floors should be tested for 6 batches;

2. At the construction site.

Each building should make 2 batches of benzene boards.

and anchor bolt pull-out experimental detection; carried out during the construction process.

3. After the construction is completed, the exterior wall of each building should be tested for surface impact resistance in batches. I choose two dots. The above is all the test content of external thermal insulation.

Legal analysis: The sampling standard for the exterior wall insulation board is that the deviation between the vertical and the entrainment degree is not more than 3 mm.

Legal basis: Construction Law of the People's Republic of China

Article 1 In order to strengthen the supervision and management of construction activities, protect the order of the construction market, ensure the quality and safety of construction projects, and promote the healthy development of the construction industry, this law is formulated.

Article 2 Engaged in construction activities within the territory of the People's Republic of China, the implementation of supervision and management of construction activities, shall comply with this Law. The term "construction activities" as used in this Law refers to the construction of all kinds of housing buildings and their ancillary facilities and the installation of lines, pipelines and equipment supporting them.

Article 3 Construction activities shall ensure the quality and safety of construction projects, and comply with national construction safety standards.

Article 4 The State supports the development of the construction industry, supports the research of building science and technology, improves the level of housing architectural design, encourages energy conservation and environmental protection, and advocates the use of advanced technology, advanced equipment, advanced technology, new building materials and modern management methods.

Article 5 Engaging in construction activities shall comply with the laws and regulations of the draft, and shall not harm the public interest and the legitimate rights and interests of others. No unit or individual may obstruct or obstruct construction activities carried out in accordance with the law.

What are the specific contents of the acceptance of the external wall insulation construction process, what are the construction of the external wall insulation system, and what are the acceptance standards for the external wall thermal insulation application.

1. Acceptance of the construction process of external wall insulation.

1) The varieties and technical properties of various materials entering the site should meet the design and product quality requirements.

2) The structure of each layer of the insulation system shall comply with the design requirements and the relevant technical regulations or atlas regulations.

3) There is no hollowing or cracking of the protective layer.

4) The mesh cloth is in close contact with the insulation layer, and there is no warping.

2. Construction of exterior wall insulation system.

1.Rock wool façade system.

The system structure mainly includes: adhesive layer, insulation layer, plastering layer, finishing layer and accessories. The finishing layer should be made of lightweight functional coatings such as finishing mortar and decorative mortar, or water-based exterior wall coatings with good air permeability.

Rock wool board external wall insulation system, low thermal conductivity, good air permeability, high combustion performance level and other advantages, composite A grade polyurethane external wall insulation board.

Composite A-grade polyurethane exterior wall insulation board.

It can be applied to the energy-saving and thermal insulation projects of the exterior walls of residential buildings and public buildings in new construction, expansion and reconstruction, including external wall thermal insulation, non-transparent curtain wall insulation and fire isolation belts of EPS external thermal insulation systems.

2.Polyurethane insulation.

Fire protection index of polyurethane exterior wall insulation system.

In September 2009, the "Interim Regulations on Fire Prevention of Exterior Wall Insulation System and Exterior Wall Decoration of Civil Buildings" was promulgated and implemented, which made clear requirements for the fire rating of building insulation materials. At present, the wall insulation materials commonly used in China are very flammable, and how to combine the high efficiency and energy saving of thermal insulation materials with excellent fire prevention has become an industry problem.

Polyurethane exterior wall insulation and fireproof system has outstanding fire performance, reaching the national A-level standard, fire and heat resistance, no melting, no dripping, low smoke at high temperature, good dimensional stability, and has a good thermal insulation and energy-saving effect, which combines excellent fire performance and good energy-saving effect, and is suitable for external wall insulation and many other fields.

3. Acceptance criteria for exterior wall insulation.

1.The surface of the wall is smooth and smooth, no repair traces, no stubble, and good appearance.

2.The surface of the overall wall has no hollows, no cracks, no spots, and uniform color.

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