Most of the shingles sold today are made from recycled content such as plastic wood fiber and rubber.
Recyclable materials for making a green roof.
A number of materials used in green roofs are from recycled sources such as the membranes and growing mediums such as crushed porous brick which is used by some suppliers.
The purely substrate based green roofs are relatively cheap to install compared to the sedum systems aim to recycle waste materials such as broken bricks and have been shown to support rare invertebrates and birds gedge and kadas 2005.
The roof mimics recycled slate and cedar shakes.
In this study recycled.
What makes a roofing material green or environmentally friendly is not just the raw materials it comes from and how it is manufactured.
Green roofing products are many and varied ranging from recycled plastic shingles to recycled metal roofs to sustainably harvested or reclaimed wood roofs.
It s also how the roof performs over its lifetime and how the roofing is disposed of at the end of its life.
There is however a need to quantify and compare the benefits of green roofs constructed from commercially available media with those constructed from recycled media.
What makes a roof environmentally friendly.