How To Figure Roof Size

The first step in a free roofing estimate is measuring the roof dimensions.

How to figure roof size.

For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. Roof pitches are described in terms of rise and run. Ft roof pitch calculate. Sq ft number of squares you need.

To measure a roof start by measuring the length and width of the building s exterior walls and multiplying them to get the area. To accurately calculate the area of your roof you must first determine its slope or pitch. Actual square feet of house. Nominal roof size in sq.

Roof pitch is a determining factor for cost of the roof as well as the roof area and the type of materials used. 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. Tips on measuring for roofing. Outside of the u s a degree angle is typically used.

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. 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. To accurately calculate the area of your roof you must first determine its slope or pitch.