Green Roof Sizing

Measure along the length of the house or building and along the width of the house or building in feet.

Green roof sizing.

We list our calcs and possibly someone can confirm them. You will need to express this size in terms of square feet. The green roof energy calculator is an online tool that allows users to compare the annual energy performance of a building with a vegetative green roof to the same building with either a dark roof or a white roof. The venny green roof melbourne.

Count the number of downspouts coming from your roof. Multiply the two figures together to obtain the square footage of your roof step 2 determine the percentage of water collected from each downspout p. United states department of transportation headquarters washington dc. Step 1 determine the footprint of your structure f in square feet.

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. Divide 100 by the number of downspouts in order to obtain the percentage of water collected from each downspout. In the national capital region if green roofs were to replace conventional roofs on all 54 million square. Photo by andrew wutke.

We have never done a green roof and have only briefly read up on them in the past but if your calculations are correct it would appear that you have a dead load of 0 85kn m2. The venny green roof has shallow substrates on two types of roof the first roof is on shipping containers and is designed for a dead load of 250kg m 2 and live load of 100kg m 2. Feet of real estate an estimated 5 9 million square feet. Expectancy of a green roof at 40 years versus 17 for a conventional roof.

The second trussed roof is designed for a dead load of 160kg m 2 and a live load of 40kg m 2.