Roof exhaust channel and construction method thereof

Abstract

The invention relates to a roof exhaust channel. The roof exhaust channel comprises exhaust channel bodies which are arranged transversely and longitudinally, supporting wall bodies which are built by gray bricks are arranged on the two sides, and the middle of the roof exhaust channel is filled with a broken aerated block; the supporting wall bodies are of a hollow flower wall structure. The invention further provides a construction method of the roof exhaust channel. The construction method comprises the following steps that 1), after a building line is placed on a roof structure layer, flower walls are built on the two sides of the exhaust channel according to the building line; 2), a layer surface heat preservation layer and a slope making layer are constructed on the outer side of the exhaust channel; 3), the broken aerated block is filled between the two supporting wall bodies; 4), the top of the broken aerated block and the tops of the supporting wall bodies on the two sides are covered with nylon bags; 5), PVC exhaust pipes are placed at the intersection positions of the exhaust channel bodies; and 6) a roof leveling layer and a waterproof layer are constructed. According to the construction structure, water vapor in the roof heat preservation layer and the slope making layer can be effectively discharged, the situation that a waterproof coiled material bulges is avoided, the supporting strength of the exhaust channel is high, a certain heat preservation function is achieved, and the weakening of the exhaust channel on the roof strength and the heat preservation effect is reduced.

Description

technical field [0001] The invention relates to a building roof structure, in particular to a roof steam exhaust channel and a construction method thereof. Background technique [0002] During the construction of the coil roof, if the moisture content in the roof insulation layer and slope-finding layer is too high, the water vapor cannot be discharged in time, which will easily cause the roof waterproof coil to bulge. [0003] During the roof construction process, according to the requirements of the specification, the leveling layer needs to be provided with separation joints every 6 meters, and the steam exhaust channel should be provided under the separation joints. It is a common practice on the construction site to install an exhaust pipe every 6 meters on the insulation layer. The exhaust pipes are connected to each other, and a vertical exhaust pipe is installed at the intersection of the exhaust passages. The exhaust pipe adopts PVC pipe, and holes are evenly punch...

AI Technical Summary

Problems solved by technology

In addition, since the slope layer is usually made of slag or perlite, it is easy to block the holes on the exhaust pipe, thus losing the function of exhaust.

There is a lot of water vapor in the roof, and the steam exhaust channel does not work, which will easily cause the roof to bulge

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