Estimate My Roof Size

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

Estimate my roof size.

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. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. Similarly if you using the area calculator tool to measure a roof with multiple levels you should do the individual section separately.

Add the price per square of materials to get an estimated material cost. Dimensions measured from the ground. After measuring the area of the footprint you can estimate the actual roof area based on the angle of the roof. The google maps area calculator is not 100 accurate.

Dividing the total area of your roof by 100 will therefore help you figure out how many squares worth of shingles to order. Roofs have one of three pitches. A 12 in 12 pitch is a. 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.

Ft roof pitch calculate. Sq ft number of squares you need. Not only will it help eliminate waste but it will also ensure that you buy just enough for the roofing job. 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.

Nominal roof size in sq. Don t use this as your only method of measuring. 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. You ll have to calculate your roof area or the overall size of your roof to determine the amount of materials you ll need.

A low pitch rises 3 inches every 12 inches of base horizontal length. 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. Knowing how to estimate roofing materials is important. Low medium or high.

Actual square feet of house. The run is the distance from the outside edge of a. You will need to express this size in terms of square feet. Just use it as a starting point and you ll have a fairly basic idea of what you re dealing.

Roofing materials are typically packaged in squares each of which is the equivalent of 100 square feet 9 3 m 2 of roof space. Estimate the pitch of the roof. The first step in a free roofing estimate is measuring the roof dimensions.