1) Except for the buckled roof panels, all the lap joints between the panels and panels of the Heilongjiang Steel Structure Factory shall be filled with qualified waterproof sealing strips. 1) Except for the buckled roof panels, all the lap joints between the panels and panels of the Heilongjiang Steel Structure Factory shall be filled with qualified waterproof sealing strips.
2) Where the lap joint between the flooding board, the edging board and the roof panel is filled with qualified waterproof sealing strip.
3) The various flooding and edging boards of the roof must consider the deformation characteristics of the roofing panel and meet the requirements of this feature to install the flooding board and the edging board.
4) The male plug at the ridge and the plug at the mouth must be filled with a waterproof sealing strip around it.
5) The lighting belt should be connected with the roof panel, and should not be directly fixed on the purlin under it. The thermal expansion and contraction coefficient of the lighting belt is large, and the temperature deformation is very significant. The lap joint between the lighting belts should have a rigid beading up and down. Fix the lighting belt and fill the double-pass sealing strip. The fastener should have a thickened waterproof gasket to adapt to the large deformation of the lighting belt.
6) At the temperature expansion joint, a special edging board with temperature deformation function should be installed.
7) Wall sills that double as window frames. Temporary wooden struts should be added during installation to avoid stepping on and under the installation. Once the wall sills are bent and a large gap is formed between the window frames, water leakage is difficult to avoid. The paste can only solve the waterproofness of the flat small gap, and can not solve the waterproof of the large gap.
8) At the mouth of the mouth, special attention should be paid to the capillary water absorption effect of the end of the insulation cotton. The roof insulation cotton should be blocked by the waterproof layer to prevent its capillary water absorption.
9) The Heilongjiang Steel Structure Engineering gutter is a waterproof weak point between the gutter and the roof slab. In the area where there is snow and frost in the north, the inner gutter should not be used. Even the best waterproof sealing paste is frozen in the snow. In the state, there should be problems. In general, the design should be done in the form of a gutter and allow the gutter to overflow during heavy rain. The external gutter does not need to consider the leakage problem, and it is very convenient to repair and replace it later.
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Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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