24 Dec '11, 1am
Architect: Ankrom Moisan Associated Architects
Below the visible plants and soils of the Ramonas ecoroof, there is a multi-layered structure that completes the buildings continuous air barrier, and provides moisture protection and thermal resistance. There is a leak protection system, a multi-ply SBS-modified bitumen membrane, protection board and a root barrier. A layer of drainage mat helps to hold more water on the roof and allows it to be used by plants or evaporate. It also allows water to flow to the drain without taking soil with it. Pea gravel was installed for walking paths, along with red cinder to reduce overall weight of the green roof components to less than 20 lbs. per square foot. The depth of ballasted areas was designed to provide coverage over 100% of the waterproofing layer in an effort to extend the life of the membrane while also being as lightweight as possible. The walking paths were located al...