Implement acoustic control measures to minimize interior-sourced noises
Rationale: Acoustic control measures that minimize unwanted interior-sourced noise — such as installing silencers in HVAC ducts and sealing interior-facing doors — can support improved cognitive function and sleep and prevent associated health issues such as hearing loss, accidents, and cardiovascular disease.
Demonstrate compliance with one of the options below:
Option 1 - Interior Acoustic Control Measures (Full Credit):
Demonstrate that a minimum of two interior acoustic control measures are implemented to limit interior-sourced noises caused by other occupants, appliances, renovations, busy indoor common areas, and other interior sources that meet the below.
- Implement a minimum of two of the following interior acoustic control measures:
- using sound and vibration-absorption materials such as fiberglass thermal insulation
- sealing interior-facing doors
- adding acoustic panels to floors and ceiling
- installing silencers in HVAC duct lines.
Option 2 - Sound Transmissing Class (STC) Rating (Full Credit):
Demonstrate compliance with the following requirement:
- Confirm the building meets all of the following Sound Transmission Class (STC) ratings:
Qualifying heat island mitigation practices include but are not limited to the following:
- all interior wall construction materials are at least STC 50
- floor construction materials are at least STC 50 in all residential areas of dwelling units
- floor construction materials are at least STC 60 in all bedroom areas of dwelling units.
Types of compliance documentation required:
- Annotated design drawings
- Certified statements
- Annotated photographs