Hidden projects mainly refer to home improvement projects that cannot be seen outside after completion of water, heating and electricity. At present, the quality problems of concealed projects mainly focus on six aspects: water supply and drainage project, electrical pipeline project, floor base layer, wall protection base layer, windows, door and window cover base layer and suspended ceiling base layer. According to the renovation process, these hidden projects will be covered by the next process, so it is difficult to check whether it is normative. In other words, if there is any problem with the hidden project after the renovation, you must destroy other projects if you want to repair it. The surface problems of the decoration are easy to find, and it is relatively easy to repair it. Once the hidden project has a problem, it will bring great trouble to consumers. According to experts, there are the following points in the areas where the focus should be tight: 1. Whether the material of the wood keel has been fireproofed and flame retarded, the spacing is correct, and the installation is firm; 2. It is necessary to pay attention when doing woodwork. Before making veneer panels, check whether the substrate is dry; 3. Whether the ground is waterproofed (preventing asphalt from replacing waterproof material, etc.); 4, the treatment of buried wire (such as: the total cross-sectional area of ​​the pipe does not exceed 40% of the pipe cross-sectional area, no joints and kinks in the pipe; such as wire and telephone lines, TV lines, cable, etc. are not installed in the same pipeline, etc.) ; 5. Before the veneer panel is installed in the ceiling project, it is necessary to check whether the internal keel, hanging pieces, connecting pieces meet the design requirements, and whether the installation is firm; 6. Whether rust-proof components and parts have been rust-proofed. Hidden Project Window TV Decoration Decoration Design Home Furnishing Wpc Deck,Wpc Construction Floor,Wpc Flooring Yongsheng New Material Co., Ltd. , http://www.wpcgoods.com