Roof Area Data

Divide total roof area by area found in step 3 to obtain the number of drains required example.

Roof area data.

Roof area is 200 x 500 100 000 sq. 1 calculate the roof area to be drained. Eagleview has spent the last 20 years pushing the boundaries of image capture and analysis. Total roof area 500 by 200 100 000 sq.

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. Number of roof. Here s a handy r value table that covers most types of roof coverings building insulation and a few other materials. You should of course see the manufacturer provided technical data sheet for the r value of specific products.

By experimenting with different aircraft camera systems and applying computer vision we continue to produce the highest resolution imagery available in the market today so we can exceed any customer requirement. 2 estimate the roof drain outlet size you will likely use. Below to obtain roof area that can be handled by each leader. R value of various 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. For a very good introductory overview article on r value see r values over at the website of. For a 4 hourly rainfall and 4 leader each drain can handle 4 600 sq. Equals 32 6 or 33 drains required.

Divided by the 4 600 sq. 4 roof drain 3 determine your building s location on the above map to determine the approximate rainfall as measured in inches per hour. From table 1 one 4 leader at 4 rate of rainfall will take care of 3 460 sq. 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.

Determine rate of rainfall for this example use 4.