- Poor caulking around the frame of an acoustical door or along gaps at the floor plate can cut a high STC door or wall system in half.
- If a high STC wall assembly is built over an OSB or plywood subfloor, the performance level of the wall will (as a result of flanking noise) typically never achieve a STC rating above 50.
- The improper installation of plumbing lines thru wall studs and ceiling joists can take the room’s ambient noise level from a quiet NC 20 to a distracting NC 40.
- The direction of floor joists relative to a partition wall beneath it will affect the amount of airborne and impact noise flanking through the floor assembly to adjacent rooms.
- Lined duct runs alone don’t assure a quiet listening environment. Typical HVAC installations can be very noisy even with lined duct runs.
- Using heavy floor toppings such as Gypsum-Concrete can dramatically increase the STC (airborne) performance of a floor system, but can dramatically decrease the IIC (impact; footfall) performance when not properly addressed for noise control.
|A few of the visible construction designs offered by A/V RoomService, Ltd.|