How Much Is An Average Roof Surface Area

This capacity can be calculated using the following formula.

How much is an average roof surface area. So you re thinking of reroofing the house yourself and want an estimate for how much roofing material you. Start the project with a roof area calculator. How to calculate the roof area using the building square footage the pitch of the roof. Calculating the surface area of a sloped roof can be time consuming without the right tools.

Anything more than 9 in 12 is considered steep. Average would not be a real meaningful number depends too much on the overhang and the shape of the house and roof slope. You want a roof area calculator that provides accurate estimates to help you order materials such as shingles membrane roofing or ceramic tile. Roughly speaking 1 millimetre of rain over 1 square metre of roof equals 1 litre of water.

For instance a 20x100 house with 3 foot overhangs would have 26x106 foot plan on the roof or 2756 sf for a flat roof. Steeper sloped roofs are considered more aesthetically pleasing and last longer. Conventional slope roof range between 4 in 12 and 8 in 12. As such while it can be cumbersome measuring the area and pitch of each part of the roof and multiplying by the corresponding correction factor will result in the most accurate estimate of necessary.

Annual rainfall in millimetres x roof surface area in square metres roof catchment capacity. These benefits do not come cheaply though.