What are the quality problems and preventive measures of energy-saving roof engineering?

Quality problems and preventive measures of energy-saving roof engineering are as follows:

1, insulation layer construction is also prone to the following quality problems: ① the joints between benzene plates are not tight; (2) The edges and corners of benzene board are seriously damaged, so it can be used directly without treatment; (3) The position of the benzene plate after penetrating into the anchor bar is not allowed. When moving the joint, the benzene board will be planed off at the missing place of the anchor bar.

Prevention and control measures: ① Strictly control the quality of construction operation, strengthen quality and technical disclosure, and earnestly abide by the operating procedures. ② Strictly regulate the edges and corners of benzene board.

2, roof gutter, eaves gutter, flashing parts closed mouth cock, closed head is lax, the phenomenon such as paint roof cracking. , causing water leakage.

Precautionary measures: ① The additional layer at the junction of roof gutter, eaves gutter and roof panel should be paved 200-300mm wide to avoid leakage caused by cracking of roof deformation waterproof layer; (2) When the cornice coating waterproof layer is closed, waterproof coating shall be applied for many times or sealed with sealing material; (3) The coating waterproof layer at the flashing place should be directly painted under the parapet coping, and the waterproof coating should be sealed for many times, and the coping should be waterproof; (4) Plate joints must be clean and dry, float ash and sundries shall be blown off before caulking, and then cold priming oil shall be applied. Filling ointment immediately after drying, and performing flexible sealing treatment; ⑤ Leave a frame joint on the leveling layer, and align it with the precast slab joint, which is straight; ⑥ The treatment agent at the grass-roots level should be evenly coated, and the coating construction can be carried out only after drying. No other construction work shall be carried out on the waterproof layer before the coating is completed, no other construction work shall be carried out on the waterproof layer before the coating is completed, and no objects shall be directly stacked on the waterproof layer. ⑦ It is forbidden to carry out construction in rainy days or rainy days, with winds of level 5 and above; Today comes into play waterproof materials and colloidal reinforcement materials must have a product certificate, at the same time, must be sampled for a second interview, the second interview qualified rear can use.

3, coating waterproof roof bubbles

Precautionary measures: ① Before coating construction, the surface of the base should be cleaned to avoid affecting adhesion and causing bubbles; (2) Choose a sunny and dry climate for construction, and the base should be dry. When the temperature is higher than 30℃, construction in hot noon should be avoided; (3) The coating thickness should be appropriate, and the primary coating thickness should generally not be greater than 65438 0 mm. ..

4. The coated waterproof roof is not firmly bonded, and the coated waterproof layer is separated from the grassroots to form a large area of shelling.

Precautionary measures: ① The roof base must be flat, dense, clean and free of loose sand. The local uneven parts should be repaired and leveled in advance, and sand treatment should be carried out in advance according to the severity to clean the surface of the working layer; (2) Waterproof coating should be constructed in layers, and its thickness should meet the design requirements. The interval of layered coating should be constructed according to different coatings and different temperatures, in accordance with the requirements of coating application technical regulations or construction technical regulations; (3) During the construction period, we should master the weather forecast and prepare rain-proof plastic sheets for timely coverage when it rains; (4) Check the production date and effective date of the waterproof coating that comes into play to prevent it from being out of date. At the same time, the incoming paint can only be used after sampling and re-inspection.