Measure Roof Area

To calculate the area of your roof first you ll need to calculate the pitch of it.

Measure roof area.

Then calculate the pitch of the roof by placing a level against it angling the level so the bubble is centered and measuring the distance between the end of the level and the roof. So you re thinking of reroofing the house yourself and want an estimate for how much roofing material you. To accurately calculate the area of your roof you must first determine its slope or pitch. First use your measuring tape to measure 12 inches on your large level and make a mark at the 12 inch line.

Climb to the top of your roof. Next place your ladder against your house at the gable end. To measure a roof start by measuring the length and width of the building s exterior walls and multiplying them to get the area. How to calculate the roof area using the building square footage the pitch of the roof.

The calculated area is only an estimation. 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. A 12 in 12 pitch is a.