Roof Square Foot Estimate

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

Roof square foot estimate.

A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. A square simply refers to a 10 x 10 square of roofing. Estimate the pitch of the roof. 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.

This is simply 100 square feet of roof. The average roof is 3 000 square feet or around 30 squares. This gives us a 3d roof area of 1 625 sq ft. Most homeowners spend between 1 500 and 3 000 total when hiring a professional and the cost goes up from there for high end materials like slate or other stone tiles which are heavier.

You will need to express this size in terms of square feet. Shingles and other roofing materials such as underlayment are typically measured in squares that are 10 feet long and 10 feet wide with each square measuring 100 square feet. The answer is the number of roofing squares for the roof. This tool only uses ranges to estimate roofing prices by square foot.

The first step in a free roofing estimate is measuring the roof dimensions. Many homes have an asphalt shingle roof but some have wood metal tile and slate which can be more expensive. Roof removal costs 1 63 per square foot for a single story home and as much as 1 96 per square foot for a 3 story townhome. Before you do any roofing work you must calculate the roof s square footage to determine how much material you need.

The calculator cannot account for complex shapes based on a measurement of square footage alone. How to estimate roofing materials. Assuming this is a hip roof we multiply this by 1 1 which gives us roughly 18 squares or 1 800 square feet of the roof surface. For estimating purposes we also assume that there is a chimney a couple of dormers and two layers of old shingles that need to be torn off and removed before a new roof can be installed.

In cases where a roof has a complex shape such as in the image to the right measuring the dimensions and areas of each part of the roof to calculate total area will result in a more accurate measurement of area. Roofing material is estimated by the square which is equal to 100 square feet. For instance if the roof is 1550 square feet then it is 16 squares. Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100.

To find the squares divide the overall roof area by 100 and then round up. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs.