How do you insulate and waterproof a roof in the north? How to reduce labor ah?

1, the traditional roof construction practices, that is, the orthotropic roof, its structure is generally thermal insulation layer in the waterproof layer below. Because the traditional roof insulation layer material selection for perlite, cement polystyrene board, aerated concrete, ceramic concrete, polystyrene board (EPS) and other materials. These materials generally have a large water absorption rate of common problems, if water absorption, thermal insulation performance greatly reduced, can not meet the requirements of thermal insulation, so must rely on the waterproofing layer to do in the above, to prevent water infiltration, to ensure that the insulation layer of the dry, can be insulated heat preservation;

2, inverted roof construction practices, the so-called inverted practice that is, the traditional roof, waterproofing and insulation layer levels reversed! The so-called inverted practice that the traditional roof, waterproofing and insulation layer level reversed, waterproofing layer in the following, thermal insulation in the above. Compared with the traditional construction method, the first method can make the waterproof layer without thermal expansion and contraction phenomenon, prolonging the service life of the waterproof layer; the second thermal insulation layer on the waterproof layer to provide a layer of physical protection to prevent it from being damaged by external forces.

3, inverted roofing and positive roofing have their own advantages and disadvantages, and now these two practices, in fact, to ensure the quality of the project is the most critical selection of qualified materials, the second is the construction of workers must be strictly in accordance with the construction process to do, do not arbitrarily reduce the work process.