Estimate My Roof Size

Similarly if you using the area calculator tool to measure a roof with multiple levels you should do the individual section separately.

Estimate my roof size.

The run is the distance from the outside edge of a. 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. 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 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.

Low medium or high. Tips on measuring for roofing. Knowing how to estimate roofing materials is important. 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.

Just use it as a starting point and you ll have a fairly basic idea of what you re dealing. Add the price per square of materials to get an estimated material cost. A low pitch rises 3 inches every 12 inches of base horizontal length. 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. Roof pitches are described in terms of rise and run. Divide your square footage by 100 to estimate your materials. Nominal roof size in sq.

Ft roof pitch calculate. Sq ft number of squares you need. You will need to express this size in terms of square feet. You ll have to calculate your roof area or the overall size of your roof to determine the amount of materials you ll need.

Roofing materials are typically packaged in squares each of which is the equivalent of 100 square feet 9 3 m 2 of roof space. The first step in a free roofing estimate is measuring the roof dimensions. Don t use this as your only method of measuring. The google maps area calculator is not 100 accurate.

A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. Estimate the pitch of the roof. A 12 in 12 pitch is a. Not only will it help eliminate waste but it will also ensure that you buy just enough for the roofing job.

Dividing the total area of your roof by 100 will therefore help you figure out how many squares worth of shingles to order. Dimensions measured from the ground. Roofs have one of three pitches.