855773644-LEED-v5-BD-C-Reference-Guide-Launch-Edition - Page 507

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strategy. Transition spaces include spaces at the indoor/outdoor boundary (e.g., lobby entrance). Projects must also account for long-term occupants of these areas including, but not limited to, receptionists or security guards, etc. Provide adaptability options such as local air speed reduction to allow long-term occupants to customize their microclimate (these design strategies may also contribute to Option 2. Adaptable Environment).

Provide thermal comfort support for occupants carrying out tasks requiring varying levels of movement. This must include considerations for occupants completing metabolically demanding tasks.

Option 4. Sound Environment

PATH 1. MAPPING ACOUSTICAL EXPECTATIONS FOR INDOOR AND OUTDOOR SPACES

Mapping involves establishing acoustical expectations for the project spaces and identifying design targets that increase the likelihood of achieving those expectations. Performing this mapping early in the design process minimizes the potential of locating incompatible spaces adjacent to each other.

The mapping exercise must include documenting acoustical expectations based on intended space function and related occupant needs. Standardized classifications for typical acoustical expectations may be used for this mapping exercise (see Table 5). Teams may refer to the USGBC worksheet to help guide this mapping process.

Table 5. Mapping acoustical expectations

Noise exposure zones	Acoustical comfort	Acoustical privacy	Communication zones	Soundscape management
High risk, Medium risk, Low risk, No risk.	Loud zone, Quiet zone, Mixed zone, Circulation, Sensitive, No specific expectations.	High Speech Security, Confidential Speech Privacy, Normal Speech Privacy, Marginal Speech Privacy, No Privacy	Excellent, Good, Marginal, None, No specific expectations	Preserve, Improve, Restore, Mitigate, Specialized (e.g., Wellness, Therapeutic, Agency in equity), No specific expectations.

For each primary indoor and outdoor space , the mapping exercise is continued to identify acoustic criteria and subsequent design strategies or solutions that if implemented in the design

U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, April 2025 Launch Edition 497