How To Figure Roof Size

To calculate the size of the roof you need to measure the size of the roof as if it were flat account for roof pitch calculate square footage and finally determine how many squares of material are required for the roof the calculator above can handle all of this simply enter the length width and pitch and it will determine the size of the roof in squares.

How to figure roof size.

Outside of the u s a degree angle is typically used. You will need to express this size in terms of square feet. Sq ft number of squares you need. Actual square feet of house.

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 measure a roof start by measuring the length and width of the building s exterior walls and multiplying them to get the area. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. Roof pitches are described in terms of rise and run.

For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. The first step in a free roofing estimate is measuring the roof dimensions. To accurately calculate the area of your roof you must first determine its slope or pitch. Nominal roof size in sq.

Ft roof pitch calculate. The run is the distance from the outside edge of a. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. To accurately calculate the area of your roof you must first determine its slope or pitch.