Green Roof Cost Savings

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.

Green roof cost savings.

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. They are fairly lightweight and can be installed on roofs with a pitch from 0º to 30º. Cost benefit evaluation of ecoroofs 2008 pdf 37 pp 2 1 mb about pdf this report attempts to quantify the private and public costs and benefits of green roofs or ecoroofs in portland oregon.

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. Over its estimated lifespan of 40 years a green roof would save about 200 000 of which nearly two thirds would come from reduced energy costs. The green roof provided an annual energy saving of 1 6 in cooling and 0 5 in heating.

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.