Asphalt shingle roof slope should not be less than what percent

Asphalt shingle roof slope should not be less than what percent? Take a look at what I have to share today.

Asphalt shingle roof slope should not be less than twenty percent.

According to the latest version of the "general rules for the design of civil buildings" (GB50352 a 2005):

The slope of the tile roof: flat tiles 20% -50%; wave tiles 10%-50%; asphalt shingles ≥ 20%.

The dimensions of asphalt shingle roofing should meet the following requirements:

1, asphalt shingles in the two slopes of the tile on the overlap width, each side is not less than 40mm.

2, the tile extends into the gutter, the length of the gutter is 50-70mm.

3, the gutter, gutter waterproofing layer extends into the tile width of not less than 150mm.

4, the tile head pick out the length of 50-70mm.

5, protruding from the side of the roof wall tile into the flashing width of not less than 50mm.

asphalt shingles roof slope specification requirements

Usually asphalt shingles are used for slopes of 20-60 degrees of reinforced concrete roofs and wooden

More than 60 degrees of the roof, it is recommended to use the full adhesive backing on the basis of the addition of adhesive, and under special circumstances and then increase the steel nails to fix, in the entire construction process, the steel nails of each tile shall not be less than 6.

Benefits of asphalt shingle roofing with a slope

1, beautiful modeling.

2, do not accumulate water, waterproof performance is good. (The old house has some are specialized in flat to slope), especially tile sloping roof.

3, the use of sloping roof space to do another layer, does not take up the daylight pitch (attic floor, and can be used below 2.2 meters part).

4, energy saving: summer heat is gathered at the top, and in winter it does not feel cold inside. The heat is running upwards, the sloping roof can gather heat in the two slopes of the cross position, the flat top of the layer height again will be very hot, the wind is also running upwards, because the wind will be through the windows of the lower part of the top of the sloping window where the polymerization (in fact, it is the polymerization of the wind flow and the outdoor). So that indoor ventilation will also be better, foreign use of the top and the combination of materials in the wind energy thermal energy, there are many successful cases of ecological buildings.