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Why is the external wall insulation board system the future trend

Views:1     Author:Site Editor     Publish Time: 2020-06-06      Origin:Site

People have been looking for better building energy-saving and decoration scheme. They have tried for internal insulation, sandwich insulation and external insulation for many times. From painting to facing brick, from dry hanging marble to glass curtain wall, from wet operation on site to factory assembly production, we have finally found you—— the integral board of exterior wall thermal insulation decoration.

Exterior wall thermal insulation and decoration integrated board is a very rare external wall energy-saving decoration product, which is originally developed by Chinese enterprises, formulates standards, and forms a complete application system and case.

Thin plastering system is the most widely used external thermal insulation system with the longest application life and the most extensive area. The integrated board of external wall thermal insulation and decoration is the most "young" external insulation system. However, according to the research of Industry Association and other institutions, thin plastering system is gradually replaced by exterior wall insulation and decoration integrated panel system.

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01Comparison of system weatherability

Thin plastering system: the coating is directly applied to the exterior wall to make the finishing layer. The coating is in direct contact with the outside world, which is easy to be polluted by stains and dust. Acid and alkali will immerse and erode the finish layer with water, and the weather resistance and color retention are poor.

Exterior wall thermal insulation and decoration integrated board system: the special fluorocarbon resin is used to cover the surface, which will form a layer of dense, hard and tough transparent paint film on the surface of the facing layer, prevent the moisture, acid, alkali and stains in the air from entering the finishing layer, and effectively protect the finish layer. Moreover, the F-C bond in the molecular structure of fluorocarbon resin is the chemical bond with the shortest bond length and the largest bond energy, so its chemical properties are very stable, with excellent alkali resistance, weather resistance and corrosion resistance. The surface tension of fluorocarbon layer is very low, so the surface of finish layer is endowed with excellent stain resistance and self-cleaning function.

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02System integrity comparison

Thin plastering system: the putty must be applied during construction. The facing layer is relatively independent from the putty layer, which is easy to peel off, resulting in hollowing, peeling and falling off of the paint film. These are the "bandage building" and "bubble building" hotly discussed on the Internet.

Exterior wall thermal insulation decoration integrated board system: the exterior wall thermal insulation decoration integrated board adopts special primer penetration. Excellent permeability and adhesion, effectively eliminate the isolation layer, significantly improve the strength of the base and the binding force of the surface layer, to ensure that the surface layer will never fall off. The introduction of functional groups between each layer of paint film produces strong chemical bond force to ensure never delamination. Completely eliminate the phenomenon of hollowing, peeling and falling off of paint film.

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03Diversity comparison of decoration effect

Thin plastering system: manual brushing or spraying, suitable for ordinary paint, stone paint, texture paint, multicolor paint, uneven color, poor decorative effect.

Exterior wall insulation and decoration integrated board system: factory automation production, applicable to various coatings, stone like paint, texture paint, fluorocarbon paint, metallic paint, multicolor paint. In particular, the multi-color paint imitates the marble coating, the coating is thin, the texture is clear, the effect is lifelike, and the pattern can be adjusted at will, the facing layer can be made into different colors, various textures and stone texture effects, the degree of imitation of natural marble is high, obtaining the visual effect equivalent to marble, and greatly reducing the hidden danger of marble due to its own weight Installation restrictions. Fluorocarbon paint and metallic paint can completely replace aluminum plastic plate and aluminum plate. The above color is uniform and does not bloom, and the decoration effect is excellent.

04Comparison of cracking resistance

Thin plastering system: plastering mortar and alkali resistant mesh cloth are used as the plastering layer, which has poor weather resistance. Due to the thermal stress caused by temperature difference and climate change, it is difficult to release, and it is easy to crack and crack.

Exterior wall thermal insulation and decoration integrated board system: the high-density calcium silicate board is used as the decorative panel, which has excellent weather resistance, and its strength is far higher than that of plastering mortar and alkali resistant mesh cloth, with good impact resistance and wind pressure resistance.

05Comparison of water resistance of the system

Thin plastering: the plastering mortar and alkali resistant mesh cloth on the surface have low waterproof performance, easy to crack, crack and water seepage, and water is easy to enter into the insulation layer, which not only reduces the thermal insulation effect of thermal insulation materials, but also produces hollowing and cracking phenomena.

Exterior wall thermal insulation and decoration integrated board system: the decorative layer of exterior wall thermal insulation and decoration integrated board adopts special fluorocarbon cover, which has excellent hydrophobicity; the decorative panel adopts high-density calcium silicate board, which is not easy to crack and crack, and has good waterproof effect.

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06Comparison of construction convenience

Traditional thin plastering system: Coatings and thermal insulation materials need to be purchased and constructed separately, and the installation process is complex.

Exterior wall thermal insulation and decoration integrated board: it has realized multi-functional integration, and it is the finished product when it leaves the factory. It is mounted on the wall through the fixed way of "sticking + anchoring". One time construction can solve the two functional requirements of heat preservation and decoration, save time and effort, reduce more than ten working procedures of thin plastering system to four, and shorten the whole construction period by about half.

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As a "upgrading product" of thin plastering system, the durability of thermal insulation and decoration integrated board is much higher than that of thin plastering system. The use of long-life exterior wall building materials can not only effectively prolong the life of buildings, ensure the durability and structural safety of buildings, but also "more secure, more cost-effective and more environmentally friendly".


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