How To Find Sqft Of A Roof

Climb to the top of your roof.

How to find sqft of a roof.

Find the 12 inch point on the level and measure straight down to the roof using a tape measure. To accurately calculate the area of your roof you must first determine its slope or pitch. Roof pitch is a determining factor for cost of the roof as well as the roof area and the type of materials used. Depending whether the roof area is measured horizontally.

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. Next place your ladder against your house at the gable end.

1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. 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. Roof pitch affects the actual area of the roof. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally.

Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs.