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When constructing external wall insulation materials, the process requires that the gap between panels should not exceed 2mm, and the height difference between panels should not exceed 1.5mm. When the gap between plates is more than 2mm, the gap must be filled with insulation Flat noodles. The parts where the flatness height difference between plates is more than 1.5mm shall be polished with wood file, coarse sandpaper or grinding wheel before the construction of surface layer. Any material will undergo dimensional changes under the influence of temperature. In foam, the gas of the dense material in the bubble structure will produce vacuum when cooling, and will increase pressure when heating, which will lead to the contraction of the bubble structure when cooling and expansion when heating.

Exterior wall insulation materials have become the mainstay of insulation boards in the insulation market, and most people choose them for their insulation, flame retardancy, and high strength. It's strange not to choose them. Good adaptability to the shape of the base surface, no need for mechanical anchoring to assist in connection, continuous construction, and no joints in the entire insulation layer. The external wall insulation material is formed by bonding and pressing, trimming, groove pressing, and material dropping in the process.

The external insulation material of the wall adopts a certain fixing method (bonding, mechanical anchoring) to fix the insulation material with lower thermal conductivity (better insulation effect) to the building wall, increasing the average thermal resistance value of the wall, thereby achieving insulation or thermal insulation effect. Every time a piece is pasted, the bonding mortar squeezed out from the four sides of the insulation board should be removed in a timely manner to avoid bonding mortar between the boards; The board and board should be tightly compressed, and the gap should not exceed 2mm. If the gap is greater than 2mm, the gap should be filled with insulation strips or foam polyurethane.