Green Roof Cost Savings

An extensive green roof is the most common and least expensive type of green roof with costs ranging from 10 20 a square foot 2.

Green roof cost savings. The green roof provided an annual energy saving of 1 6 in cooling and 0 5 in heating. Over its lifetime though the green roof would save about 200 000. The largest reductions were seen in rooms directly below the green roof and no reductions were found more than three floors down. They are fairly lightweight and can be installed on roofs with a pitch from 0º to 30º.

Based on these considerations recover green roofs has found that extensive roofs can cost about 10 to 50 per square foot while intensive roofs can cost from 20 to 200 per square foot. They consist of a thin layer of soil with continuous coverage of growing material. Ecoroofs are expected to be an important part of the city s urban strategy as it grows and density increases in the decades to come. The university found that the green roof would cost 464 000 to install versus 335 000 for a conventional roof in 2006 dollars.

The economic benefits of any individual green roof will however depend on its design geographic location surroundings and the building itself.