Green Roof Statistics

Container gardens on roofs where plants are maintained in pots are not generally considered to be true green roofs although.

Green roof statistics.

They act as a kind of trap for storm water absorbing 50 to 80 per cent of rainfall and cooling the excess before it washes into the storm drain system. Green roofs transform the tops of houses and businesses into urban gardens. Installed the most green roofs in north america this past year with 1 326 872 square feet. A green roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium planted over a waterproofing membrane it may also include additional layers such as a root barrier and drainage and irrigation systems.

A green roof has many benefits at economic ecological and societal levels. As a result the roof structure can require less maintenance saving the owner money in replacement costs over the long term life of the roofing system. The global green roof market size was worth usd 7 2 billion in the year 2018 and is predicted to grow at a cagr of 17 1 for the period 2019 to 2025. Roof produced a 10 percent decrease in building energy use over the winter months.

Were chicago new york city toronto philadelphia and cincinnati. The global green roof market size was valued at usd 1 1 billion in 2019 and is expected to grow at a compound annual growth rate cagr of 17 from 2020 to 2027. It was in boston in 2006 that the first steps towards a legally chartered organization were taken. The green roof acts as a bio filter basically as a big sponge that sucks up dirt and pollution in the air.

A green roof can increase the life expectancy of a roofing system by protecting the roofing materials from direct ultra violet radiation and extreme temperatures. Benefits of a green roof. Be sure to check out grhc s green roofs for healthier cities annual green roof industry survey for 2016 for more current green roof statistics. A green roof provides a rainwater buffer purifies the air reduces the ambient temperature regulates the indoor temperature saves energy and encourages biodiversity in the city.

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 for healthy cities grhc is the north american industry association for the green roof and wall sectors. Green roof green roof performance data. Leaders of several national green roof organizations first discussed the formation of an international green building technology organization in chicago in 2003 and at subsequent green roof events in portland 2004 basel 2004 and washington 2005.

Green roofs are part of climate proof construction.