LEED stands for Leadership in Energy and Environmental Design, a rating system designed by the U.S. Green Building Council.

LEED CI: LEED for Commercial Interiors is a benchmark for the tenant improvement market that gives the power to make sustainable choices to tenants and designers.

LEED CS: LEED for Core & Shell aids designers, builders, developers and new building owners in implementing sustainable design for new core and shell construction.

LEED for Healthcare promotes sustainable planning, design and construction for high-performance healthcare facilities.

LEED for Homes promotes the design and construction of high-performance green homes.

LEED for Neighborhood Development integrates the principles of smart growth, urbanism and green building into the first national program for neighborhood design.

LEED for Retail recognizes the unique nature of retail design and construction projects and addresses the specific needs of retail spaces.

LEED for Schools recognizes the unique nature of the design and construction of K-12 schools and addresses the specific needs of school spaces.

LEED NC: LEED for New Construction and Major Renovations is designed to guide and distinguish high-performance commercial and institutional projects.

LEED OM: LEED for Existing Buildings: Operations & Maintenance provides a benchmark for building owners and operators to measure operations, improvements and maintenance.

LEED Rating Systems

Louvers are frames with horizontal and vertical slats that allow light and air in while keeping out direct sunlight, rain, and noise.

Low-E glazing on windows is a low-emitting coating made of metal or metallic oxide layers that prevent heat and ultra-violet rays from passing through the glass. Low-E glazing prevents heat gain in the summer and heat loss in the winter.

Low-flow fixtures are plumbing fixtures that use less water than average fixtures. Low-flow toilets use no more than 1.6 gallons per flush compared to the traditional 3.5 gallons per flush.

Low-iron windows provide 5% higher visible light transmittance than ordinary clear glass windows.