How To Square A Roof For Shingles

There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these.

How to square a roof for shingles.

You find this crude method works because three sheets of sheathing are roughly the size of one square 100 sq. To calculate the total square footage of the roof add up every plane s square footage. A square simply refers to a 10 x 10 square of roofing. With other bundle counts per square divide the sheet number by three and come up with the number of squares you need to cover your roof.

Measure the length and width of each portion of the roof multiply length by width for each plane and then add the planes together for the total square footage. You can also use an app or a roofing calculator to decide how many shingles you ll need. Therefore divide your total area by 100 or 9 3 if you re using meters to get the number of squares. So for instance if your total is 2 381 square feet that s approximately 23 8 squares or 24 squares rounded up.

Total shingles needed the number of packs needed to cover the roof but does not add additional packs needed for ridge capping and starter strips. Although roofing projects are estimated and sold by the square roofing material is often not sold in 1 square increments. Roof area total square footage of the roof. To find the squares divide the overall roof area by 100 and then round up.

This is simply 100 square feet of roof. Starter strip the perimeter of the roof in lineal feet. How to estimate roofing materials. Center a minimum 610 mm 24 wide minimum 28 gauge pre finished galvanized metal valley liner in the valley and fasten with only enough nails to hold it in place nailing at the edges only.

Overlap each metal piece by at least 150 mm 6 and use asphalt plastic cement under each section of overlap. However shingles are packaged in a way that they are light enough for the average person to carry around. Multiply width x length this will give you the roof s square footage of one plane. As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.

For instance if the roof is 1550 square feet then it is 16 squares. Ridge length top ridge plus the 4 hips in lineal feet. Estimating shingles 1 find the square footage of the roof.