useing intumescent seals with sound seals

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Intumescent seals or gaskets are not required on fire rated steel doors. Generally speaking, the requirement for intumescent seals or gaskets are a function of the individual manufacturers’ listi...
Steelcraft have tested different types of doors and frame assemblies using Zero International gasket seals for the various STC ratings. Tests are in accordance to ASTM...
Frames can be installed either KD (knock down) or welded to receive the STC rating.
Steelcraft borrowed light frames are not listed/tested. Check with the glass manufacture if they are listed and with what type of framing used.
Sound seals are required. Zero International Gasket Notes: Perimeter Seals – Zero #475 applies to the stop of the head and jambs. Door bottom – Zero #367, surface applied. Threshold ...
Types of astragal offered from Steelcraft are as follows: "Z" Astragal - For information on "Z" astragal types and attachment refer to the TD Manual page 3.3.17. Most commonly used on double ...
 Cam Lift Hinges are specially designed hinges used mainly on acoustical door assemblies. The Cam Lift Hinge lifts the door during its travel and seats the door bottom for a pos...
Gasketing, Weatherstrip; weather, light, sound transmition, seals
Weather Stripping; Seals, weather, light, sound transmition