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Performance Standards: LEED® for Homes v4

LEED for Homes is an initiative designed to promote the transformation of home building practices toward more sustainability. LEED stands for Leadership in Energy and Environmental Design and is administered by the U.S. Green Building Councilexit disclaimer (USGBC). The LEED Rating System recognizes buildings that meeting high standards in terms of durability, health, reduced environmental impact, and energy efficiency.

The LEED for Homesexit
disclaimer, as with the other LEED programs, is a consensus-developed, third party-verified, voluntary rating system which promotes the design and construction of high-performance buildings. This rating system applies to single family homes, low-rise multi-family (1 to 3 stories), or mid-rise multi-family (4 to 6 stories).

Energy-efficient Windows in LEED Homes

LEED homes must qualify for a certain number of credit points in different resource categories (Energy and Atmosphere, Sustainable Sites, Materials and Resources). High-efficiency windows may achieve up to 3 points in the Energy and Atmosphere category. The baseline for this category are the minimum criteria for ENERGY STAR® qualified homes. By exceeding these criteria, a home receives LEED points.

  • Performance path: Gain points for a home energy rating score better than the minimum performance of an ENERGY STAR Home. Windows influence this score through variables such as U-factor, SHGC, orientation and window area.
  • Prescriptive path: Gain points for individual home features (insulation, windows, water heater, etc.) that exceed the performance levels for these features in the ENERGY STAR Homes program. Windows can contribute 1.5 or 3 points if their NFRC-rated energy performance values meet the following levels:
Points for Exceeding Baseline Window Ratings
Points Metric Climate Zone
Northern (5-8) North Central (4) South Central (3) Southern (1,2)
1.5 Points U-factor ≤0.26 ≤0.26 ≤0.30 ≤0.45
SHGC Any 0.40 ≤0.25 ≤0.25
3 Points U-factor ≤0.22 ≤0.22 ≤0.26 ≤0.30
SHGC Any ≤0.40 ≤0.25 ≤0.25
Source: LEED BD+C for Homes v4. (www.usgbc.org/node/2612104?return=/credits/homes/v4/energy-%26-atmosphere)

Note 1: In climate zones 4–8, homes with a WFA ratio of 15% or more must meet a more
stringent U-factor requirement:
Maximum U-factor = [0.15 / WFA] x [relevant U-factor as shown in table above]

Note 2: In climate zones 1–3, homes with a WFA ratio of 15% or more must meet a more
stringent solar heat gain coefficient (SHGC) requirement:
Maximum SHGC = [0.15 / WFA] x [relevant SHGC as shown in table above]

Points for Exceeding Baseline Skylight Ratings
Points Metric Climate Zone
Northern (5-8) North Central (4) South Central (3) Southern (1,2)
1.5 Points U-factor ≤0.47 ≤0.47 ≤0.57 ≤0.70
SHGC Any 0.40 ≤0.25 ≤0.25
3 Points U-factor ≤0.40 ≤0.40 ≤0.47 ≤0.47
SHGC Any ≤0.40 ≤0.25 ≤0.25
Source: LEED BD+C for Homes v4. (www.usgbc.org/node/2612104?return=/credits/homes/v4/energy-%26-atmosphere)

Additional Window Credits

Additional points for windows are possible. To search for availability see the links below: