Green Roof Cost Analysis

This article presents a green roof cost benefit analysis cba.

Green roof cost analysis.

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. Roof can expect to spend between 15 000 and 30 000 with most paying around 22 000 for the project. In north america with very low implementation rates of green roofs across the continent the additional costs of extensive green roofs ranged from 45 m 2 to 190 m 2. Green roofs are roofs which are partially or completely covered by vegetation.

The total energy saving is 32 4 mmbtu which is 9495 5 kwh. Cost benefits analysis initial cost of green roof white roof the cost of green roofs varies signif icantly. We discuss the benefits and costs of light self sustaining vegetated roofs. Green roofs are approximately 6 to 8 per square foot cheaper to install than semi intensive green roofs and in both cases larger green roofs cost less per square foot to install than smaller green roofs.

In british columbia canada the costs for a standard extensive green roof varies from 130 to 165 bianchini and hewage 2012. There are several types of green roofs which leads 1 to a wide range of associated costs. The average homeowner creating an extensive green roof for a 1 500sq ft. Green roof cost benefit analysis pdf 885 kb.