Green Roof Cost Analysis

We discuss the benefits and costs of light self sustaining vegetated roofs.

Green roof cost analysis.

The average homeowner creating an extensive green roof for a 1 500sq ft. 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. However in germany with established green roofs industry and higher implementation rates the additional costs were only around 13 m 2 41 m 2. Green roof cost benefit analysis pdf 885 kb.

Green roofs are roofs which are partially or completely covered by vegetation. 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 total energy saving is 32 4 mmbtu which is 9495 5 kwh. There are several types of green roofs which leads 1 to a wide range of associated costs.

Cost benefits analysis initial cost of green roof white roof the cost of green roofs varies signif icantly. 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. This article presents a green roof cost benefit analysis cba.