How To Find Sqft Of A Roof

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.

How to find sqft of a roof.

1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. To calculate the area of your roof first you ll need to calculate the pitch of it. Next place your ladder against your house at the gable end. Roof pitch is a determining factor for cost of the roof as well as the roof area and the type of materials used.

Roof pitch affects the actual area of the roof. Depending whether the roof area is measured horizontally. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. Climb to the top of your roof.

First use your measuring tape to measure 12 inches on your large level and make a mark at the 12 inch line. 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. 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. It affects walkability as well as drainage and roofs in areas of high rain or snowfall tend to have steeper pitches.

Find the 12 inch point on the level and measure straight down to the roof using a tape measure.