Npr Green Roofs

A green roof can be applied over either a torch on epdm or self adhered system.

Npr green roofs.

Then we imagined what the city could be like if all of its roof space was green. Do cities need more green roofs. Special mats are installed to hold shed the water and contain the root system of the chosen vegetation. Npr s chris arnold reports.

They fall into three main categories extensive intensive and semi intensive. From permitting to delivering soil and water to the roof to dealing with growing conditions that are. A previous version of this video incorrectly thanked the audubon society. An extensive green roof on the other hand is a thinner lighter version that looks more similar to a standard roof.

We took a field trip to the largest green roof in new york city. But now some of those roofs are going green. Npr s ketzel levine reports. Green roof simply means your roof has some form of vegetation growing over top of the roof membrane.

Green roofs are also known as vegetative or eco roofs. Although there are no precise definitions of them an extensive green roof has a shallow growing medium usually less than six inches with a modest roof load limited plant diversity minimal. We took a field trip to the largest green roof in new york city. Not only are these roofs great for the environment they help.

It can be sloped or flat. A green roof is a roof that has grasses or plants all over it and the idea is not new. 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. But green roofs are being touted as the answer to a number of environmental problems and they re showing up all over the country.

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. But a green roof project in houston that was started six years ago has learned that some flowering shrubs herbs and ornamental grasses can do well in roof beds and provide big savings according.