Roofing Used Under Green Roofs

A cool roof is a roofing product that reflects sunlight and absorbs less heat than traditional roofs.

Roofing used under green roofs.

Cool roofs lower roof temperatures on hot sunny days and therefore keep homes cooler inside saving energy by reducing the need for running air conditioning systems. 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. 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. This is a layer that gathers the water and sends it away before waterproofing actually has to go to work.

Leadership in energy and environmental design. 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. Although often light in color cool roofs come in a wide variety of. 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.

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. They can sustain shrubs trees walkways and benches with their complex structural support irrigation drainage and root protection layers. The most common design approach over a metal deck is to build a conventional loose laid roof assembly under the vegetated cover. Intensive green roofs are essentially elevated parks.

Green roofs and leed certification. When the home inspector checked the roof he found that.