Estimate My Roof Size

Roofs have one of three pitches.

Estimate my roof size.

The google maps area calculator is not 100 accurate. While it is possible to estimate the amount of necessary materials using only the total roof area measurement as can be seen from the table depending how large the pitch of the roof the actual area of the roof can differ by up to 2 236 from the measured total area at a pitch of 24 12. 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.

Low medium or high. You will need to express this size in terms of square feet. Tips on measuring for roofing. Divide your square footage by 100 to estimate your materials.

Roof pitches are described in terms of rise and run. The first step in a free roofing estimate is measuring the roof dimensions. Actual square feet of house. Dimensions measured from the ground.

Calculate the size of your roof and estimate how many bundles of asphalt shingles rolls of felt and squares of roofing material are needed for a new roof. Knowing how to estimate roofing materials is important. Not only will it help eliminate waste but it will also ensure that you buy just enough for the roofing job. Keep in mind that using google earth isn t going to give you a 100 percent accurate reading but it will give you a basic idea of the size of the roof for your calculations for the roofing materials.

Nominal roof size in sq. Add the price per square of materials to get an estimated material cost. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. To accurately calculate the area of your roof you must first determine its slope or pitch.

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. The run is the distance from the outside edge of a. Roofing materials are typically packaged in squares each of which is the equivalent of 100 square feet 9 3 m 2 of roof space.

You ll have to calculate your roof area or the overall size of your roof to determine the amount of materials you ll need. Similarly if you using the area calculator tool to measure a roof with multiple levels you should do the individual section separately. Don t use this as your only method of measuring. Sq ft number of squares you need.

Ft roof pitch calculate. A low pitch rises 3 inches every 12 inches of base horizontal length. Just use it as a starting point and you ll have a fairly basic idea of what you re dealing.