Green Roof Benefits And Cost Implications

A large body of evidence shows that green roofs help to reduce local ambient air and surface temperatures in cities.

Green roof benefits and cost implications.

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. A green roof also known as a rooftop garden or a living roof is a vegetative layer grown on a rooftop. Unlike traditional black tar roofs green roofs reduce energy costs by absorbing heat instead of attracting it and. A study completed by three researchers at the university of michigan found that greening 10 percent of chicago roofs would result in public health benefits of between 29 2 and 111 million due to.

The study looked at a range of benefits of green roofs including stormwater management improved health benefits due to reduced pollution and energy savings. A study on sonadanga residential area phase i khulna bangladesh md. All other factors being equal location ease of access etc per square foot cost would typically decrease by a factor of at least 3 as size increases from a 1 000 square foot roof to a 20 000 square foot roof. A in depth analysis of the benefits challenges and opportunities of alternative roofs such as conventional roofs or white roofs was beyond the scope of this report.

The popularity of green roofs has increased in the united states due to their many benefits while pretty green roofs serve a much greater purpose than simple beautification. Green roof capital costs. Rather themes are drawn from the research for reflection findings point to steps that might be. Green roof capital costs vary widely.

Green roof vegetation can shade buildings and increase evapotranspiration which shifts a roof s energy balance or budget. Green roofs can help reduce stormwater run off mitigate the urban heat island effect and clean the air benefits that accrue to the community. Green roof owners gave weight to wider societal and ecosystem services benefits whilst those without focussed much more upon building level benefits and costs because of the restricted sample size the findings in themselves are not generalizable. Examples of important factors that influence green roof capital costs include.

Costs benefits challenges and opportunities of green roofs along with an original cost benefit analysis discussion of best practices and assessment of further research needs.