Some people think that the existing fires in the external wall wall insulation materials construction project are caused by fire on the construction site. There are few fire cases in the use of medium and external wall insulation construction projects. In addition to solving the fire hazards in the construction stage, the external wall insulation can be guaranteed. Fire safety.

In the fires of existing external wall insulation projects in China, most of them occur during the construction process, and there are relatively few fire cases during the use of external wall insulation buildings. The reason is that the organic insulation board is bare during the construction process, and there is no protective layer. The construction process often encounters fire cross work and is prone to fire. However, few people are aware that when a building is in a fire, a poorly fired external insulation system can contribute to the fire.

At present, Class A firewall body insulation materials include foam glass plates, rock wool boards, glass wool boards, microporous calcium silicates, vitrified microbeads, expanded perlite products, expanded vermiculite products, aerated concrete slabs and blocks. Lightweight aggregate foamed concrete insulation board and block, inorganic thermal insulation powder, inorganic thermal insulation slurry and its products. It is a technical specification for fire protection from civil building exterior insulation projects.

External wall insulation should be combined with the four departments of building science and materials science, fire science and environmental science. Any deviation from the four university studies is relatively one-sided and limited. To do a good job in the fire protection of external wall insulation, do the following:

   (1), select the external wall insulation material;

   (2) Strictly implement various fire protection laws and regulations;

(3) After the wall insulation material is made into the external wall insulation system, the fire protection system is properly used to prevent the occurrence of fire.

   (4) The use of wall insulation materials to monitor the construction process at the intermediate stage to prevent the possibility of various fires;

(5) Prepare fire prevention measures for the primary stage of wall insulation materials;

Exterior wall insulation

In general, you should pay attention to the following points when purchasing wall insulation materials:

1. Check the appearance of the product. Requires less damage, the same color, accurate size (length and width tolerance ± 4mm, thickness tolerance 2mm.

2, the simple measure strength. The strength requirements of thermal insulation products are mainly to meet the handling needs, generally not very high, 1/10-1/20 of the strength of red bricks, but it is not enough to break. According to the standard requirements, the compressive strength is generally above 0, 5 MPa, and the general product should be able to withstand a person standing gently on it.

3. Calculate product density. If you choose a piece of the product and the side volume is called the weight, you can calculate the density. The lower the density, the better the strength requirement.

4. Check product technical documents and reports. Regular products should have certificates related to technology and qualifications.