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刚性防水屋面易受温度变形和结构变位影响而产生裂缝。为此除在防水层与基层间设置隔离层缓冲外,还应设置分格缝,但某些单位由于施工粗糙和技术水平低,设置了分格缝不但达不到预期效果,反而导致刚性防水屋面渗漏。一般工程中,在施工防水层分格缝时,通常用截面30mm×d(mm)的矩形木条(d 为防水层厚度,根据规范 d≥40
Rigid waterproof roofs are prone to cracks due to temperature deformation and structural displacement. For this reason, besides setting the buffer between the waterproof layer and the base layer, a grid seam should be provided. However, due to the rough construction and low technical level of some units, setting the grid seam not only fails to achieve the desired effect, but also results in rigid waterproof. Roof leakage. In general engineering, when constructing waterproof seams, a rectangular cross-section of 30 mm×d (mm) is usually used (d is the thickness of the waterproof layer, according to the specification d≥40