How much does roof waterproofing cost per square meter?

10-40 yuan

The price of roof waterproofing depends on the waterproofing materials purchased. It depends on several materials, whether they are non-standard materials or national standard materials. There are people who can make it for more than 10 yuan cheaper. If you are qualified, a piece of material will cost about 40 yuan.

Taking traditional SBS modified asphalt membranes as an example, they range from more than 100 yuan per roll to 600 yuan per roll. The price of the construction team’s contract materials ranges from more than 20 yuan per square meter to 50 or 600 yuan per square meter. Yuan or even 70 yuan per square meter. Among them, material costs account for about 60~65%. Generally speaking, products priced around 20 yuan or 30 yuan are non-standard, that is, substandard products.

Extended information:

Acceptance standards for roof waterproofing construction

1. The waterproof layer must not have leakage or water accumulation.

The materials used should comply with the design requirements and quality standards. The surface of the leveling layer should be smooth, and there should be no loose, sandy or peeling phenomena. The thickness, moisture content and apparent density of the insulation layer should meet the design requirements.

Structures such as gutters, eaves, flashings and deformation joints should meet the design requirements. The roll laying method and overlapping sequence should meet the design requirements, the overlapping width is correct, the joints are tight, and there should be no wrinkles, bubbling or warping.

2. The thickness of the waterproof layer of the coating film should meet the design requirements, and the coating should be free of cracks, wrinkles, flow, bubbling and carcass exposure.

The surface of the rigid waterproof layer should be smooth, calendered, and free of sand, skin, and cracks. The dividing seams should be straight and in the correct position. The caulking sealing material should be firmly adhered to the base layers on both sides, and the sealing parts should be smooth and straight, without cracking, bubbling, or collapse. The base layer of a flat tile roof should be smooth and solid, the tiles should be arranged neatly and straight, the overlap should be reasonable, the joints should be tight, and there should be no incomplete tiles.