The app is based on the “Technical Report 15 (TR 15), Calculation of Sound Transmission Parameters for Wood-Framed Assemblies.” That report addresses the 2018 International Building Code’s two parameters to establish minimum acoustical requirements: Sound Transmission Class (STC) and Impact Insulation Class (IIC).
Compliance with these requirements may be demonstrated through testing or through engineering analysis based on empirical test data from similar assemblies. The Acoustics App uses the AWC empirical model, based on empirical test data, to estimate STC and IIC values that can be used to demonstrate compliance of wood-frame floor-ceiling assemblies with these code-regulated sound transmission parameters.
“We released the TR 15 to simplify how wood-framed floor-ceiling assemblies can comply with the acoustical requirements,” said Brad Douglas, AWC vice president of engineering. “We’ve now taken it a step further by developing this free app. It is now even easier for code officials and designers to determine what wood-frame floor-ceiling assemblies can comply with code-specified acoustical requirements.”
Related Stories
Codes and Standards | Mar 10, 2021
‘Smart retrofitting’ will be crucial to net zero aspirations
AI, analytical software, Internet of Things are keys to decarbonization of built environment.
Codes and Standards | Mar 9, 2021
Salt Lake City is first jurisdiction to adopt new standards for off-site construction
Code Council and Modular Building Institute developing standards and compliance protocols.
Codes and Standards | Mar 8, 2021
Hyperlocal zoning could spur more affordable housing construction
Letting blocks and streets pass their own rules could have impact.
Codes and Standards | Mar 5, 2021
Biden builds on Trump’s “Buy American” order
New administration extends preferences for domestic construction materials.
Codes and Standards | Mar 4, 2021
Biden administration overturns Trump’s federal building design mandate
Previous order promoted classical and “traditional” architecture above others.
Codes and Standards | Mar 3, 2021
Texas freeze raises questions about risks of electrifying buildings
Gas stoves helped residents cook, boil water when power went out.
Codes and Standards | Mar 2, 2021
New Seattle building code eliminates fossil fuels for most space and water heating
Also increases on-site solar photovoltaics, reduces envelope heat loss, air leakage, and interior lighting power allowances.
Codes and Standards | Feb 25, 2021
It’s not just lumber—roofing material prices are also on the rise
Lower demand for petroleum products means less asphalt production.
Codes and Standards | Feb 23, 2021
USGBC offers education on LEED Safety First pilot credits
Four courses address COVID-19.
Codes and Standards | Feb 23, 2021
ASHRAE Epidemic Task Force releases updated Building Readiness Guide
Includes flush calculations to reduce time and energy to clear contaminants between occupancy periods.