The answer is the number of roofing squares for the roof.
How many squares in 80ftx60ft roofing.
As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.
Most composition shingles are 3 bundles per square.
A square of shingles is the number of shingles needed to cover 100 sq feet of roof area.
4 square feet to roofing squares 0 04.
You will need to express this size in terms of square feet.
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This free roofing calculator estimates the area of a roof and the amount of materials required to replace or build said roof.
Convert the area to roofing squares.
1 square feet to roofing squares 0 01.
3 square feet to roofing squares 0 03.
The average bundle of shingles covers 33 3 ft 2 so three bundles of shingles are needed per square.
The square footage of a hip roof area is identical to the square footage of a gable roof of the same size.
100 square feet to roofing squares 1.
Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100.
90 square feet to roofing squares 0 9.
Asphalt shingles range in price from about 25 per bundle for a standard 3 tab.
However shingles are packaged in a way that they are light enough for the average person to carry around.
Get the square footage of roof and divide it by 100 and it will give the number of squares you need and for every decimal number over 3 buy a bundle to achieve the amount of material.
70 square feet to roofing squares 0 7.
80 square feet to roofing squares 0 8.
The top ridge will be shorter than the one of the gable roof but the four hips will add to the ridge length.
How many bundles of shingles will you need.
The only difference in this calculation to the one for a gable roof area is the amount of the ridge.
The first step in a free roofing estimate is measuring the roof dimensions.
2 square feet to roofing squares 0 02.
Although roofing projects are estimated and sold by the square roofing material is often not sold in 1 square increments.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
Keep in mind that the average size of a roof is 1 700 square feet so your total will likely be 10 higher or lower than this figure.
10 feet x 10 feet 100 square feet or 1 roofing square 5 feet x 20 feet 100 square feet or 1 roofing square 2 feet x 50 feet 100 square feet or 1 roofing square 50 feet x 50 feet 2500 square feet so 2500 100 25 roofing squares.
5 square feet to roofing squares 0 05.