The U.S. Green Building Council’s LEED™ Rating System

The U.S. Green Building Council’s LEED™(Leadership in Energy & Environmental Design) rating system was developed in response to market demand for a definition of a “Green” building. Through the LEED program, the USGBC promotes the design, construction, and operation of buildings that significantly reduce or eliminate negative impacts on the environment and occupants. In the LEED rating system, points are awarded for the use of environmentally friendly materials and construction practices. To obtain LEED Certification, a building must qualify for a minimum of 26 points. Additional points can be obtained to achieve the Silver (33-38 pts.), Gold (39-51 pts.), or Platinum (52-69 pts.) level of certification.Tremco’s roofing products and systems can assist building in obtaining LEED certification by contributing to the following areas:

Heat Island Effect: Roofs LEED offers 1 point for the use of ENERGY STAR® qualified (highly reflective) and high emissivity roofing materials on at least 75% of the roof surface. This point can also be achieved through the use of a vegetated roof system on at least 50% of the roof, or combination vegetated/reflective material on 75% of the surface. Tremco offers a wide variety of ENERGY STAR qualified coatings and membranes as well as a vegetated assembly.

Recycled Content Up to 2 points can be obtained through the use of products that contain recycled content. To obtain the first point, 5% of the total value of materials in the project must contain recycled content. An additional point is achieved when the total material value meets or exceeds10% recycled content. Many Tremco roofing products contain recycled content, which can directly contribute to obtaining the recycled content points.

Stormwater Management The use of vegetated roof systems decreases site imperviousness to stormwater runoff. This helps to reduce stormwater flow rate and the amount of total suspended solid sand phosphorous. Tremco's vegetated roof systems can help to obtain up to 2 points by controlling the rate and quantity of runoff while improving the water quality.

Renewable Energy To reduce the environmental impact associated with fossil fuel energy use, the LEED rating system encourages the use of renewable energy by offering up to 3 points to buildings that use on-site renewable energy sources. These point scan be obtained through the use of Tremco's Photovoltaic Roofing Solutions.

Other Credit Areas Additional points may be obtained through the use of regionally manufactured materials and by using innovative design practices. Innovative combinations of Green materials outside of the normal requirements can qualify for up to 4 points. To learn more about the LEED Program, contact a Tremco representative by using our Find A Rep page.