Suspended Drywall Ceiling Stc Rating

Concrete with cellular steel 3 hr.

Suspended drywall ceiling stc rating.

Stc means sound transmission class. Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies. It is a single number rating corresponding to. Urb concealed grid system and tile.

It is a single number rating for the performance of a ceiling in an open office with a partial height divider. Pre engineered drywall ceiling suspension system that is three times faster to install than traditional track and channel framing. Heavier gauge studs are more rigid and may not provide the same sound ratings. Defined by astm 1111 the attenuation of sound that travels over a divider and reflects off of the ceiling is measured at human speech frequencies.

Page 1 of 2 5726 sonoma drive pleasanton ca 94566 phone. Single layer of drywall stc 36. High cac ceiling panels can provide this type of sound control increasing speech privacy in private spaces and reducing distractions to those outside. The standard requires a minimum laboratory stc rating of 50 for party walls and floor ceilings.

925 600 0618 technical bulletin stc ratings steel stud framed walls sound transmission class stc is an integer rating of how well a framed wall attenuates sound. Isolation clip integrates with the new hd8906iic main beam to help you ensure your drywall ceiling installations meet ibc requirements for iic. Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly. It is also fully compatible with alldonn brand acoustical suspension systems for easy transition from wallboard ceilings to acoustical tile ceilings.

A single layer of drywall is ineffective in blocking or reducing sound. 276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. Duty ratings heavy duty. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete.

The panel is light and easy for noise to vibrate through. All too often this plenums and suspended ceilings unbaffled ducts window to window outdoors common heating units transoms and air grilles. Hence noise transmits from the drywall to the studs to the air cavity in the ceiling. Sound ratings shown for steel framed partitions apply to systems constructed with 25 gauge steel studs 24 o c unless otherwise noted.

12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. Test curve and the stc rating is heavily influenced by a measurement in one fre quency band. Ceiling attenuation a measurement of the ability of a ceiling panel to block the travel of sound from an enclosed room up into the plenum class cac and down to adjacent spaces.