LEED v5 BD+C Rating System_November 2025_clean - Page 055

Extracted Content

Sustainable Sites Credit

HEAT ISLAND REDUCTION

SSc5

New Construction (1–2 points) Core and Shell (1–2 points)

INTENT

To mitigate disparate impacts on microclimates and habitats caused by heat islands and extreme heat events.

REQUIREMENTS

Achievement Pathways	Points
New Construction and Core and Shell	1–2
Option 1. Nonroof and Roof	1
AND/OR
Option 2. Parking Under Cover	1
AND/OR
Option 3. Tree Equity	1

Choose one of the following options:

Option 1. Nonroof and Roof (1 point)

Meet the following criteria for the nonroof and roof weighted average approach:

Equation 1. Weighted nonroof and roof calculation

𝑛 𝑛 𝑚 𝑚 𝑚 𝑚 [𝐴] [ 𝑜] [ ℎ𝑖] [ℎ-𝑟] [𝑟] [𝑟] [𝑟] [𝑟] [𝑟][ 𝑟] [𝑟]

• [𝐴] 0.5 0.75

𝐴 𝐴 𝑜 𝑛 𝑛 𝑛 𝑛 𝑚 𝑚 𝑚 𝑚

[𝑟] [𝑟] [𝑟] [𝑟] [𝑟][ 𝑟] [𝑟] [𝐴] [ 𝑜] [ 𝑣] [𝑣] [𝑣] [𝑣] [𝑣][ 𝑟] [𝑟]

• [𝐴] 0.75 0.75

≥𝑇 𝑇 𝑇 𝑠 𝑠 𝑝 𝑝 𝑝 𝑎 𝑎 + 𝑇 𝑇 𝑇 𝑟 𝑟 𝑎 𝑎

0.75

Use any combination of nonroof, high-reflectance roof, and vegetative roof strategies so that the weighted sum of site design strategies is greater than or equal to the sum of the total pavement and roof areas. Each surface may only be counted once, even if it is addressed through multiple strategies.

Nonroof measures

• Shade over pavement areas, measured in plain view at noon, with existing or new plants, assuming 10-year canopy width, or vegetated structures. Planting or vegetated structures must be in place at the time of occupancy permit.

U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, November 2025 Edition 48