Implement acoustic control measures to minimize exterior-sourced noises
Rationale: Acoustic control measures like using soundproofing materials or leveraging dense foliage and greenery to minimize exterior-sourced noises, such as road traffic noise, supports improved sleep and cognitive functioning — contributing to reduced rates of stress, depression, and cardiovascular diseases such as hypertension and coronary heart disease.
Demonstrate compliance with one of the options below:
Option 1 - Acoustic Control Measures (Full Credit):
To achieve full credit, demonstrate compliance with all of the following requirements:
- Limit exterior-sourced noises caused by highways, heavy traffic, busy streets, busy gathering spaces, or other external factors by implementing a minimum of two of the following qualifying acoustic control measures:
- orienting dwellings away from the noise sources
- sealing windows and doors
- using soundproofing materials on external walls
- placing areas of dense foliage between noise sources and dwelling units.
Option 2 - STC Rating (Partial Credit):
Demonstrate compliance with the following requirement:
- Provide exterior walls for the building with a Sound Transmission Class (STC) rating of at least 60.
Types of compliance documentation required:
- Annotated maps
- Annotated plans
- Certified statements
- Annotated photographs