Green Roof Data

A portion of the captured rainfall evaporates or is taken up by plants which helps reduce runoff volumes peak runoff rates and pollutant loads on development sites.

Green roof data. 55 east 84th street new york ny 10028 212 288 1100 contact us transcript request. A green roof or rooftop garden is a vegetative layer grown on a rooftop. Data collected from a study by researchers at the pennsylvania state university center for green roof research show that green roofs captured up to 80 of rainfall during rainstorms compared to 24 typical for standard roofs. It is not complete and is an ongoing open source community based transparent living research document.

As green roof plants mature and root systems grow storm water retention may increase. The temperature on the green roof on the hottest summer days can be as much as 59 degrees cooler than conventional roofs on neighboring buildings. Green roofs can cool near surface air temperatures by an average of 16 4 degrees celsius per unit area slightly behind street trees in terms of heat island mitigating potential according to a 2006. Have we missed your contribution.

Green roofs provide shade remove heat from the air and reduce temperatures of the roof surface and surrounding air. Using green roofs in cities or other built environments with limited vegetation can moderate the heat island effect particularly during the day. Green roof green roof performance data roof produced a 10 percent decrease in building energy use over the winter months. Green roofs are stormwater management practices that capture and store rainfall in an engineered growing media that is designed to support plant growth.

Types of green roofs there are two basic types of green roof systems. This map and corresponding dataset provide the location satellite images and square footage of existing green roofs within the city of chicago. It may also include additional layers such as a root barrier and drainage and irrigation systems.