Address: No. 1, seven weft Road, Binhai Road, Yingkou, Liaoning.
Yingkou golden block energy saving thermal insulation building materials technology Co., Ltd. introduces the insulation materials for sheet metal for you.
Building materials plant
Generally speaking, sheet insulation materials, the use of a wide range of areas and areas, can be used in the external wall thermal insulation project, can also be used in the external wall thermal insulation project. The main body of insulation material of energy-saving building material sheet can be foamed polystyrene board, extruded polystyrene board, rock wool board, glass wool board and other different materials. Sheet insulation materials can be divided into single insulation materials and system insulation materials, in the application process should pay attention to the following issues:
A single thermal insulation material is the main body of thermal insulation engineering application, which needs the cooperation of other materials in the use process. For example: foamed polystyrene board, extruded polystyrene board, rock wool board, glass wool board, etc., before use to test the following content:
1. Thermal conductivity (W/m?K): This technical index is a key index related to the thermal insulation effect of the project. Generally speaking, laboratory tests are carried out from drying to constant weight of the sheet metal, and the application of the material is used under the condition that there is a certain humidity in the air. Therefore, a certain coefficient should be multiplied when the material is used. Directly adjust the material to the test under the environmental conditions.
2, compressive strength (MPa): the compressive stress of the specimen under 10% deformation. It is related to the durability and impact resistance of the surface layer system.
3, size change rate (mm): the material with large size change rate will cause the surface cracking of the system.
4. Water vapor permeability [ng/Pa?Ms]: This performance determines the performance of water vapor permeability, to a certain extent, determines whether the wall condensation or not.
5, oxygen index: flame retardant type, otherwise the fire can not meet the standard.
6. Apparent density (Kg/m3): the apparent density of materials to a certain extent affects its thermal conductivity, the apparent density of unqualified materials will directly lead to the decline of its physical properties, such as strength, dimensional stability.