How To Figure How Many Square A Roof Is

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.

How to figure how many square a roof is.

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. As such while it can be cumbersome measuring the area and pitch of each part of the roof and multiplying by the corresponding correction factor will result in the most accurate estimate of necessary. A square simply refers to a 10 x 10 square of roofing. If you have a simple gable roof you ll only need to measure and sum up the 2 planes of the roof.

1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. You will need to express this size in terms of square feet. After you ve done this you can click along the outer edge of the roof that you wish to calculate the area for. Find the square footage of the roof.

Each time you add points the area will update and there is a box below that will convert this into acres meters kilometers miles and finally square feet. Check that your footage measurements are within this range so you can start off on the right foot. Calculate or enter the square footage of the attic or area to be vented. It will also give you the perimeter of the shape of the roof.

This is simply 100 square feet of roof. 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. While it is possible to estimate the amount of necessary materials using only the total roof area measurement as can be seen from the table depending how large the pitch of the roof the actual area of the roof can differ by up to 2 236 from the measured total area at a pitch of 24 12. For example take an area made up of a triangle that s 20 feet high and has a base of 40 feet plus a square that s 40 feet by 40 feet.

Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy. Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator. To find the squares divide the overall roof area by 100 and then round up. For instance if the roof is 1550 square feet then it is 16 squares.

If the house has an irregular shape measure each part separately figure the separate areas and add them together. Divide any irregularly shaped areas of the roof into more manageable triangles and rectangles then calculate square footage for those individual elements and add them to get the total square footage. Next you will need to use a roofing materials calculator.