Acoustical Sound Control Doors & Windows
STC Sound Control Door Assemblies are designed to limit the transmission of sound or objectionable noise, from outside of the room. The two methods of rating are Sound Transmission Class (STC) or Sound Transmission Loss (STL).
MegaMet's proprietary assemblies were tested in accordance with ASTM E-90 and achieved up to STC-56, using the rating system established in ASTM E-413. An extensive variety of door, frame, and gasket combinations were tested in order to maximize choices of performance levels.
MegaMet’s STC Door Sound Control Assemblies (Models 3A and 4A), consists of the door, frame, perimeter seals, gasketing, cam-lift hinges and threshold. Door bottom options include, our exclusive integral, adjustable, and best of all, removable (without having to take door down). This door bottom is also concealed for a much more appealing look. We also offer Models 1A with H.W. 4-1/2" butts (x3, by-others) and 2A, with H.W. 5" butts (x4, by-others), for a "level swing" design, which includes an ADA approved threshold. Locks, butt hinges, door closure, and all other hardware are by our distributors. Hardware recommendations are contained in SDI-128 and HMMA 865, “Guide Specifications for Sound Control Hollow Metal Doors and Frames".
Our mid-range STC units proudly exceed the 30 to 40 ratings from ANSI S12.60-2002 required by "LEED 2009 For Schools" (IEQ Credit 9) and greatly exceed the minimum recycled content (by weight) of all other LEED 2009 publications.