Asphalt shingles are the mainstream material for roofing, but many buyers don’t know how to buy the quantity of asphalt shingles. Buying too much is wasteful, and buying too little is not enough, and it will be troublesome to buy twice. Now, Ornice will introduce to you the effective algorithm of asphalt shingle roof area.
1. Measure the actual area of the roof
Tile roofs and metal profiled panels are calculated in square meters by multiplying the horizontal projection area of the roof by the roof slope coefficient.
Do not deduct the area occupied by the chimney, hood base, air duct, roof small transom, sloping ditch, etc. on the house.
Do not increase the eaves part of the roof small transom.
2. Measure the total length of all roof ridges (inclined ridges) on the roof
Roof ridge engineering quantity (namely length) = ortho ridge length + oblique ridge length
It can be measured with a tape measure.
After measuring all the required length and area, let's look at the total roof area.
Total roof area: actual length of the roof + [total length of roof ridge (sloping roof)/3] + [total length around roof (eaves)/7]
Notice:
1. When the tiles encounter skylights and parapets, they must be leaned up to cause loss.
2. Roof loss: {actual roof area + [total length of roof ridge (inclined roof)/3] + [total length around roof (eaves)/7]*4%
3. If the roof is complex, the loss is greater.
The above is the effective algorithm for asphalt shingle roof area. If you need to buy asphalt shingles, you still don’t know how much you need to buy, you can contact the online staff for consultation and answers.
