Green Roof Cost Benefit Analysis

Green roofs are roofs which are partially or completely covered by vegetation.

Green roof cost benefit analysis. The analysis demonstrated that the lifecycle cost of green roofs can be paid back by individual benefits in a mature market. With the two systems sharing elements total costs are reduced and government grants can be applied to both. In the national capital region if green roofs were to replace conventional roofs on all 54 million square feet of real estate an estimated 5 9 million square feet of roof area this cost benefit analysis projects a 50 year npv of 22 7 million or 0 42 per square foot of building area. 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.

This article presents a green roof cost benefit analysis cba. Due to the cooling effect of green roof plants underneath solar green roof panels produce 6 to 16 more electricity in summer than standard rooftop solar systems. The purpose of this cost benefit analysis of extensive green roofs is to eliminate these economic reservations and provide conclusive evidence that extensive green roofs are able to provide a short and long term return on investment. We discuss the benefits and costs of light self sustaining vegetated roofs.

10 west jackson street chicago il gsa s green roof report estimated that green roofs on commercial and public buildings provide a payback based on 50 year average annual savings of about 6 2 years nationally internal rate of return of 5 2 and an roi of 224 based on a net present value of 2 7 square foot. The process of growing living plants on the roof of a home or building has been shown to dramatically decrease cooling costs for the building while enhancing stormwater management and air quality for the area. The walmart chicago green roof costs roughly 45 less to maintain than a typical white walmart roof. The following will present an example of an extensive green roof with.

Minimal selective weeding and avoidance of irrigation at this location helps to keep green roof maintenance costs low. A cost benefit analysis of a 10 000 square foot extensive green roof show that total savings using an extensive green roof would be 8 00 sf over 40 years. The benefits of the ecosystem services es provided by green roofs can be classified into private and public benefits. Known as living roofs eco roofs and vegetated roofs green roofs offer many benefits to the user.

In this project we got so much benefit out of this secret garden for the master suite along with all of these environmental benefits that the residents. Green roof cost benefit analysis pdf 885 kb. If the public benefits are added into the assessment the lifecycle cost.