Foam board insulation performance is one of the criteria to determine the quality of the foam board, foam board for the insulation performance we need to do some understanding, foam sheets whether we are consumers or distributors, more about us to buy foam board is there A certain help.
The thermal insulation of the foam board has the characteristics of high thermal resistance, foam sheets low linearity and low expansion ratio. The closed cell rate of the foam board is more than 99%, forming a vacuum layer, avoiding the heat dissipation of the air flow, ensuring the lasting and stable heat preservation performance, Relative to the foamed polyurethane 80% of the closed-cell rate, the leading advantage is self-evident.foam sheets Practice proved 20mm thick XPS extruded insulation board, the insulation effect is equivalent to 50mm thick foam polystyrene, 120mm thick cement perlite.
So the foam board is the best choice for the current building insulation excellent high-strength compression due to the special structure of XPS board, its high compressive strength, impact resistance is very strong, according to XPS different models and thickness of its compressive strength To reach 150 ~ 500Kpa above, can withstand the system ground load, widely used in geothermal engineering, highways, foam sheets airport runway, square ground, large cold storage and so on.
Foam board, also known as foam insulation board, it is made of volatile liquid blowing agent containing polystyrene beads, heated by the preheating in the mold after the formation of white objects, foam plate with a fine closed-cell structure Characteristics, foam board is mainly used for building walls, foam sheets roof insulation, composite board insulation and other fields. So what are the requirements of the operation of the foam board?
Foam board operation requirements to be based on the different circumstances of the environment to distinguish, Xiaobian to organize some of the, together look at:
A, rain construction should take effective measures to prevent rain erosion wall.
B, the external walls should be carried out before the insulation construction, foam sheets should be on the base with 20 mm thick 1: 3 cement mortar leveling, leveling layer should be dry and acceptance qualified.
C, doors and windows installed before the drawings according to the requirements of check the door and window openings size and elevation is consistent with the design requirements and play a good indoor and outdoor +500mm horizontal line.
D, the house before the construction of the insulation board should be the surface of the roof surface of the debris and dust clean, the grassroots surface cracks, foam sheets pits with cement mortar repair formation; sudden surface of the pipeline, with fine stone concrete fixed tight.