Feldman Residence, Saint Lucia Reserve, Carmel, Calif. // © Rana Creek Living Architecture/Green Roofs for Healthy Cities
13 amazing facts about green roofs
By Damon van der Linde and Steven Peck of The Daily Green
What is a green roof?
A green roof is an extension of a new or existing roof that has:
- A high-quality waterproofing and root-repellant system
- A drainage system
- Filter cloth
- A lightweight growing medium
- Plants
Green-roof systems may be modular, with drainage layers, filter cloth, growing media and plants already prepared in movable, interlocking grids. Or each component may be installed separately.
Green-roof development involves the creation of "contained" green space atop a human-made structure. This green space could be below, at or above grade. But in all cases, the plants are not placed in the ground.