Roofing Used Under Green Roofs

It often looks like a tray made of tiny egg crate type pockets.

Roofing used under green roofs.

Leadership in energy and environmental design. Green roofs and leed certification. The rigid insulation material is typically extruded polystyrene xps which is resistant to moisture absorption and has been used in green roof applications for decades. The home we re buying has two layers of composition shingles and the seller assures us that the new layer is only 1 year old.

Leadership in energy and environmental design leed is the green building rating system developed by the united states green building council usgbc the intent is to provide a standard certification process that registers buildings constructed with environmental performance efficiency and occupant health. They can sustain shrubs trees walkways and benches with their complex structural support irrigation drainage and root protection layers. This is a layer that gathers the water and sends it away before waterproofing actually has to go to work. Hydrotech one of the biggest green roof companies around uses a formula of refined asphalts and synthetic rubbers.

The foot or more of growing medium needed for an intensive green roof creates a load of 80 150 pounds 36 68 kilograms per square foot. While many roofing materials are susceptible to damage caused by chemical contaminants found on some industrial roofs pmma membranes resist most acids and aqueous alkalis aliphatic hydrocarbons and nonpolar solvents. Although often light in color cool roofs come in a wide variety of. The most common design approach over a metal deck is to build a conventional loose laid roof assembly under the vegetated cover.

When the home inspector checked the roof he found that. Hydrophobicity also makes it a good choice for inverted or green roofing system designs.