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sound rated doors
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What is an STC rating?
Resolution:
STC stands for Sound Transmission Class. An STC (Sound Transmission Class) is a single number rating system derived from measured values of sound transmission loss in accordance with ASTM E90...:
What Steelcraft products have been tested in accordance with SDI's Acoustical Testing Standard #SDI 114?
Resolution:
SDI 114 is no longer published as an SDI performance standard. The new SDI standard for acoustical Performance is SDI 128-09Steelcraft does offer products that have been tested in accordance with S...:
Can an electric strike be used with a surface vertical rod device on a fire-rated door?
Resolution:
Not for use in fire rated openings.:
What is the maximum glass light size on a 3 hour (180 minute) fire rated door?
Resolution:
Maximum glass light sizes for 3 hour fire doors is as follows: Wire glass - not approved for use in 3 hour fire doors. Ceramic glass: UL & ITS/WH allow one (1) light with 100 square inc...: