Scroll down for a detailed description and the benefits of each green roof system offered by permanent roof.
Green roofing facts.
Traditional green roofs the type with plants going on them don t leak if they are installed properly.
A green roof s plants remove air particulates produce oxygen and provide shade.
A green roof or living roof generally incorporates a system of layers that include waterproofing drainage soil and growing vegetation.
Additionally this natural protection against extreme heat enables green roofs to last twice as long as traditional rooftops.
Green roofs transform the tops of houses and businesses into urban gardens.
For example a grass roof with a 4 20 cm 1 6 7 9 inches layer of growing medium can hold 10 15 cm 3 9 5 9 inches of water.
Here s a great infographic with some cool facts about ford s green roof in summer depending on the plants and depth of growing medium green roofs retain 70 90 percent of the precipitation that falls on them.
A reflective roof coating or white roof is the best known and.
Depending on the structure the green roof is being built on green roofs can either be intensive or extensive.
Reflective roof coatings.
Adding a lovely aesthetic to neighborhoods and urban construction areas aa well as helping to feed the masses if gardening is incorporated into the green roof.
Intensive green roofs are essentially elevated parks.
Green roofs help reduce the urban heat island effect a condition in which urban environments absorb and trap heat.
The green roof acts as a bio filter basically as a big sponge that sucks up dirt and pollution in the air.
An intensive green roof is heavier more expensive and more complex than its counterpart.
Image courtesy of earth pledge.
Green roofing systems consist of several layers including vegetation growing medium and protective root barrier.
The foot or more of growing medium needed for an intensive green roof creates a load of 80 150 pounds 36 68 kilograms per square foot.
Green roof systems are classified as.
Intensive green roofs feature additional layers of protection and deeper soil to sustain a wider variety of plants.
Protective coatings reflective membranes garden systems slate metal tile concrete and photovoltaic.
Extensive green roofs have a shallow soil base usually a formulated compost two to six inches deep.
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.
They can sustain shrubs trees walkways and benches with their complex structural support irrigation drainage and root protection layers.
Green roofs are comprised of plants and soil and will help to reduce sound.
Green roofing is a unique feature that has several significant benefits to the building environment and for green living.
