A fiberglass door with polyurethane core is rated between 22 and 32 while the particleboard core is 30 to 38 the heavier and denser the material the more sound it will.
Stc 55 rated door.
The stc rating is calculated in accordance with astm e413 it s a single number rating for interior building partitions that are subjected to mid to high frequency noises.
Seals thresholds and door bottoms when required are shipped with the doors along with the attached stc rating.
Because acoustical doors are constructed differently than traditional hollow metal doors certain considerations must be made when selecting hardware for them.
Krieger acoustical doors are delivered as complete performance guaranteed acoustical assemblies with seals hinges and threshold included.
3 hour fire rating by underwriters laboratories ul and its fire ratings vary with stc rating wood doors available in various species stains and finishes.
Wood doors up to stc 49.
Additionally cam lift hinges and an aluminum threshold are included with high stc rated assemblies.
The stc rating of fiberglass doors depends on the core material used and the thickness of the door.
Its overall transmission loss with better quality weather seals too.
Levels 43 to 52 available.
Stc rated doors provide privacy and prevent noise distraction.
3 hour fire rating by underwriters laboratories ul and its fire ratings vary with stc rating wood doors available in various species stains and finishes.
Metal doors up to stc 57.
Fixed windows up to stc 55.
Stc rating 55 to 59 author.
Tested in accordance with astm e90 09.
Up to 4 0 x 8 0 singles and 8 0 x 8 0 pairs.
Up to 4 0 x 8 0 singles and 8 0 x 8 0 pairs.
Stc 55 swing door single double stc and astm e 90 tested all steel swing doors with fire resistant core of barrier materials and energy absorbent acoustical insulation.
When specifying acoustical doors one often overlooked concern is the hardware.
Our designs also interface with the locks and accessory hardware you have chosen for your project.
The new whisper core door system uses the latest patented sound absorbing technology to achieve its operable stc 55 rating.
The whisper core stc 55 door system will help to insure the quality of sound in or.
These doors are typically used in schools conference rooms buildings near airports recording studios government military facilities or any other building where sound control is important.