Green Roof Tops

Stored water in their succulent leaves allows them to.

Green roof tops.

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 is a layer of vegetation planted over a waterproofing system that is installed on top of a flat or slightly sloped roof. The initial expense of green rooftops often turns away prospective clients. Grhc develops and protects the market by increasing the awareness of the economic social and environmental benefits of green roofs green walls and other forms of living architecture through education advocacy professional development and celebrations of excellence.

New green roofs should be watered until the plants are established and it is important to weed green roofs several times a year to keep the plants healthy. Because green roofs require professional design careful structural analysis and multiple layers and systems even extensive green roofs usually start at 8 per square foot significantly more expensive than the 1 25 per square foot for built up roofs burs source. An extensive green roof can reduce sound from outside by 40 decibels while an intensive green roof can reduce sound by 46 50 decibels peck et al. Green roofs have excellent noise attenuation especially for low frequency sounds.

Container gardens on roofs where plants are maintained in pots are not generally considered to be true green roofs although. Sedums have unique qualities making them most suitable plants for a low maintenance green roof. Green roofs for healthy cities grhc is the north american industry association for the green roof and wall sectors.