They are one more way krieger ensures the acoustical door qualities and ratings you require.
Stc door hinges.
Krieger thresholds are manufactured as solid units to increase sound control and eliminate noise pathways of conventional saddles.
No lead or asbestos in core us patent no.
Stc rated doors provide privacy and prevent noise distraction.
Doors sound transmission class stc 16 gauge stc50 3070 cr steel meeting astm a366 specification internal sound retardant core and isolator perimeter edge construction.
Metal doors up to stc 57.
Fixed windows up to stc 55.
The weight of sound control doors will vary depending on size and stc rating.
A standard unit is supplied with necessary hinges perimeter gasketing and retainer door bottom loose stops stop offset hardware brackets and all required fasteners.
Wood doors up to stc 49.
High sound transmission class stc ratings are typically needed to create sound resistant rooms for the government and military airports school band rooms and to isolate performance halls from exterior noise.
However we can advise and supply nearly any additional hardware.
Ceco door has developed acoustical assemblies that solve noise problems for any facility.
Kriegersonic acoustical doors with high stc sound control ratings come with krieger manufactured aluminum thresholds.
The cam lift hinge allows the sound control door to be lifted up during the opening cycle and allows the door to drop during the closing cycle this helps the door bottom achieve a positive seal on the acoustical threshold.