On the roof of the waterproofing membrane paving the direction of what are the requirements
?When the roof slope is greater than 15% (ie, steep sloping roof), taking into account the steep slope, according to the direction of the parallel roof paving sheet operation difficult, while the roof of the heat requirements are higher, easy to flow, and thus vertical roof The coil is more advantageous. As for the polymer modified asphalt waterproofing membrane and synthetic polymer waterproofing membrane, due to good temperature resistance, thinner thickness, there is no flow problem, so the direction of the paving is not limited.
?As for the upper and lower layers are not allowed between the vertical paving, the reason is that after the paving more heavy joints, and heavy seam is the most vulnerable to leakage of weak parts.
????????Dragon waterproof experts to remind you: things always have a dual nature. In the southern region, the temperature is high, rainy days, to the web paving brought a lot of difficulties. In order to waterproof roofing, when the rain is easy to coil joints, in addition to less than 3% of the roof slope, the remaining slope of the roof coil should take the vertical roof direction paving.
?For the vibration of the roof, such as the use of parallel roof ridge direction asphalt waterproofing membrane, under the influence of vibration, easy to slip the membrane waterproof layer. And therefore should be vertical roof ridge direction. But the high strength of synthetic polymer film can not be limited.
The direction of the web should be determined according to whether the slope of the roof and the roof is affected by vibration: when the slope of the roof is within 3%, the asphalt waterproofing membrane should be parallel to the roof; at 3% ~ 15%, the asphalt waterproofing membrane may Parallel or vertical roof paving; slope greater than 15% or by vibration of the roof, asphalt waterproofing membrane should be vertical roof paving, and polymer modified asphalt waterproof and synthetic polymer waterproofing membrane can be parallel or vertical roof paving; The upper and lower layers should not be piled with each other vertically.
?The purpose of the above provisions is to prevent the flow of membrane waterproof layer at the same time, as far as possible to reduce the coil waterproof layer of the joints to ensure that the integrity of the membrane waterproof layer, The probability of leakage of water.?When the roof slope is less than 15% (ie, gentle slope roof), parallel roof ridge direction of the film has the following advantages: (1) a web can be paved in the end, reducing the joints, saving raw materials; (2) (4) to maximize the use of the longitudinal tensile strength of linoleum, in the long-term lap joints are perpendicular to the direction of the flow of the roof slope, so that the most difficult to leak; (4) to maximize the use of the longitudinal tensile strength of linoleum, in the To a certain extent, improve the membrane roof cracking resistance.
