How Much To Roof A Flat Roof

However flat roofs require much more aggressive and consistent maintenance than a pitched roof.

How much to roof a flat roof. The table below shows common roof pitches and the equivalent grade degrees and radians for each. While the average lifespan for a typical roof can be 15 20 years a long hard winter or a particularly intense storm can cause lasting damage to a roof. Assuming an average roof size of 1 500 square feet that s a total cost of 2 250 to 15 000. If you used long lasting materials on your pitched roof you could expect it to last much longer.

The run always remains constant at 12 inches. Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. Although ceramic tile roofs are expensive they can have a life span of over 100 years. A flat roof has a slope of 2 in 12 or less.

Flat roofs also don t last as long. It is often compared to slope but is not exactly the same. A low slope roof is anywhere from 2 in 12 to 4 in 12. This is the basis for calculating the angle which is approximately a 1 19 degree slope.

Over time that damage could really add up. Shingle roofs typically have a life span of 15 30 years while membrane roofs usually last 5 15 years. Porch the home services platform connects homeowners with quality home improvement repair and maintenance professionals and also serves as the exclusive in store resource to over 1700 lowe s stores. Anything more than 9 in 12 is considered steep.

Roofing resources during covid 19 for contractors for homeowners. Average cost to install a flat roof is about 16 000. The actual cost of a flat roof depends on your location the materials used the complexity of the installation and other factors. Find here detailed information about flat roof installation costs.

A pitch over 9 12 is considered a steep slope roof between 2 12 and 4 12 is considered a low slope roof and less than 2 12 is considered a flat roof. According to the international building code the typical built up flat roof that uses tar or asphalt goes by the guideline that for every foot 12 inches of a flat roof a minimum of inch must step up or down. Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator. Depending on the climate your flat roof will only last between 15 and 30 years if well maintained.

Building a flat roof costs approximately 5 00 to 10 00 per square foot.