Vegetated roofs offer multiple environmental benefits. See associated sustainability solutions and technical briefs (right) for more detail.
Durability. The vegetated cover protects the roof membrane resulting in a longer service life before replacement is required
Acoustical Comfort. Increased sound insulation results from higher sound absorption by the growing medium and plants
Energy Efficiency. Greater energy efficiency typically results in reduced size requirements for the building’s cooling equipment. May contribute to LEED Credit EA 1.
Heat Island Reduction. The vegetated roof minimizes the heat island effect of the building. May contribute to LEED Credit SS 7.
Stormwater Management. Because rainwater percolates through the growing medium peak runoff rates are reduced. May contribute to LEED Credit SS 6.
Human Well being. Increased aesthetics for those with access or site line view to the vegetated roof, enhancing psychological well-being of building users.
Outdoor Air Quality. The plants absorb and filter outdoor pollutants, helping improve outdoor air quality.
Habitat. The roof provides habitat for birds and other small creatures. May contribute to LEED Credit SS 5.
Water Efficiency. Appropriate vegetation can eliminate the need for landscaping irrigation in green roofs after establishment. This can contribute to LEED Credit WE 1. Using roof runoff from a green roof can contribute to WE Credit 2.