The system emerged during the last energy crisis of the late 1970s, first applied to commercial buildings, and then began to be used in civil buildings. Today, the EIFS system accounts for 17.0% of commercial building exterior wall use, 3.5% of civil building exterior wall use, and is growing at 17.0% to 18.0% per year in residential buildings. This system is a multi-layer composite exterior wall insulation system that can be used in both residential and commercial buildings. The ELFS system consists of the following parts: the main part is an insulation board made of polystyrene foam, generally 30-120 mm thick, which is fixed to the building exterior wall by synthetic adhesive or mechanical means; the middle part is durable, Waterproof polymer mortar base layer, which is mainly used on thermal insulation boards, with glass fiber mesh to enhance and convey the external force; the outermost part is a beautiful and durable surface covering. In order to prevent fading and cracking, the coating material is generally made of acrylic copolymer coating technology. This coating has a variety of colors and textures, and has strong durability and corrosion resistance.
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