A case study in kansas city missouri 2018 us epa pdf 26 pp 2 6 mb about pdf the case study lays out a replicable analytical framework for use by decision makers in assessing the multiple benefits of green roofs including stormwater runoff reductions and public health improvements.
Green roofs epa.
These trays cover 20 000 square feet or almost 60 of the 35 000 square foot total roof surface above the 8 th 9 th and 10 th floors of region 8 epa headquarters.
Green roof temperatures can be 30 40 f lower than those of conventional roofs and can reduce city wide ambient temperatures by up to 5 f.
1 2 in addition green roofs can reduce building energy use by 0 7 compared to conventional roofs reducing peak electricity demand and leading to an annual savings of 0 23 per square foot of the roof.
Green roofs and water quantity buffam and mitchell unpublished data most extensive green roofs will reduce stormwater flows on an annual basis by 50 green roofs also delay stormwater runoff but flow dynamics depend on climate and green roof design.
Cities have signiicant opportunities to increase the use of green roofs.
Estimating the environmental effects of green roofs.
Posted in healthy waters posted on may 24 2012 tagged buildings ecological services energy production reduction green infrastructure green roofs green solutions stormwater watersheds.
Opportunities to expand use of green roofs in urban areas.
The green roof at the epa regional office is an extensive modular design meaning that the plants are growing in 2 x 4 trays made of recycled plastic.
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