In the hypothetical green roofs annual co2 reduction due to saved energy was between 1 703 and 1 889 kg co2 m yr.
Green roof co2 reduction.
Water is stored by the roof s substrate and.
This is consistent with the field measurement.
A study presented at the green roofs for healthy cities conference in june 2004 cited by the epa found water runoff was reduced by over 75 during rainstorms.
Green roofs offset global warming study finds.
Green roofs can reduce stormwater runoff via water wise gardening techniques.
Like any forested or vegetation covered area a patch of green on top of a roof should theoretically lower levels of carbon dioxide in the air.
In the field measurement p1 can be considered to be a site very close the green roof and p2 is the site with some distance from the green roof.
Green roofs play a significant role in retrofitting the low impact development lid practices in urban areas.
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.
From these results we concluded that the co2 payback time of the.