Design requirements should be chosen before the construction of the wall insulation materials recommended more than ordinary portland cement 32.5 R also slag Portland cement, aggressive media. Not recommended adding sand and other substances. The primary treatment to clean up the debris should be cleaned with water moist. Sprinklers should be noted that the problem of water needs to be evenly distributed, and do not water phenomenon, which can effectively prevent precipitation in the future construction collapse. Foam concrete with foam foam preparation and use in the general preparation of special equipment should be used, the foam diameter should be controlled between 0.5-2 mm, and should be flexible and not easily broken. Concrete foam with the use, with the preparation the indwelling time should not be greater than 20 minutes. Also need to pay attention in the construction of a problem is when the total thickness of more than 10cm should be layered construction. Flat roof structure slope, the slope should not be less than 3%; using the material to find the slope, the slope should be 2%; gutter, gutter longitudinal slope, the slope should not be less than 1%, the ditch water gap must not exceed 150mm . Low foam concrete consistency, mobility, the inclined roof insulation thickness is difficult to control. To ensure quality, the inclined roof precast concrete construction technology plus foam-in-concrete cast insitu combination should be used. The specific approach is to: (1) to prefabricated foam concrete slab; (2) 10 - 20 mm foam concrete pouring on the roof, and laying precast foam concrete slab. (3) of the low-lying uneven the foam concrete leveling. Foamed concrete system due to the precast foam concrete slab and the scene with the same material, the same process to produce both thermal expansion coefficient is exactly the same, and can be well combined, and thus guarantees the roof have better insulation and integrity. In addition, when the bulk density of less than 300kg / m3, construction should coagulant, coagulant dosage is generally 4% of the amount of cement --- 6% ash with coagulant species, construction temperature and require appropriate increase Less. But pay attention to the problem is lower than 300kg / m3 only can be used as insulation levels, and definitely not as a load-bearing part. The construction site of the temperature should not be less than 3 ° C, at the same time after the completion of construction, moisture conservation. Usually in the design of the thickness of the insulation layer of foam concrete allowable deviation of +10% -5%. Surface flatness 5mm Henan Wang Yu building materials company the referenced professional insulation material production technology over the years, cooperation with the Institute of Zhengzhou University, research new products, Wang Yu developed a new type of insulation material by the National Quality verify the stability of the company's Class A insulation board good. Small risk, big return, quick, high-profit, suitable for all types of investors to make investment and cooperation. Company Address: Zhengzhou City, Henan Province, Beihuan the 6th Company Address: www.hongyujc.com www.hyjnjx.com