Roof Area Data

Total roof area 500 by 200 100 000 sq.

Roof area data.

Eagleview has spent the last 20 years pushing the boundaries of image capture and analysis. Area is defined as the expanse or measurement of a given surface and there are a few methods for measuring your roof s area. You should of course see the manufacturer provided technical data sheet for the r value of specific products. From table 1 one 4 leader at 4 rate of rainfall will take care of 3 460 sq.

Below to obtain roof area that can be handled by each leader. Divide total roof area by area found in step 3 to obtain the number of drains required example. Us demand for residential roofing products is forecast to advance 4 0 percent per year to 147 million squares in 2020 valued at 10 4 billion. For a very good introductory overview article on r value see r values over at the website of.

1 calculate the roof area to be drained. 2 estimate the roof drain outlet size you will likely use. For a 4 hourly rainfall and 4 leader each drain can handle 4 600 sq. Equals 32 6 or 33 drains required.

Determine rate of rainfall for this example use 4. 4 roof drain 3 determine your building s location on the above map to determine the approximate rainfall as measured in inches per hour. Here s a handy r value table that covers most types of roof coverings building insulation and a few other materials. The base width is the distance from one corner of your roof to the other at its base on the short side of your house.

Our roof calculator uses base length and base width to find the estimated area. There are currently over 50 000 establishments engaged in the installation roofing siding and sheet metal work valued at a total of 31 4 billion. Divided by the 4 600 sq. Roof area is 200 x 500 100 000 sq.

Number of roof.