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Bronx, NY -- October,
2005 Bronx, N.Y. -- Zero International has introduced a fireproof, lead-free intumescent sound barrier engineered to improve the sound ratings of both new and in-place doors -- without compromising existing fire-protection performance. STC 3003 SOUND SHEET barrier is fire-rated INTUMET™ intumescent material that acts as a thin, dense sound-damping layer. Nearly as effective as lead in stopping the transmission of sound, it can increase door STC values by up to six points. SOUND SHEET is suitable for layering during the construction of acoustical doors. In some cases, it can be applied as an outer layer to existing doors, provided it is properly installed with trim strips over its seams. SOUND SHEET can also be installed in walls prior to sheet-rock application for improved noise reduction. Zero offers a full line of acoustical gaskets and sealing systems that are known for both quality and exceptional sound performance. The development of SOUND SHEET barrier addresses the limitations of using even the best gasketing to solve noise problems when the door itself is not an effective sound barrier. For example, 30-32 STC (sound transmission class) sound ratings are typical of 1 3/4" particle-core wood. And hollow metal doors with honeycomb or styrene core usually provide no better than a 37 STC rating--short of the sound control levels needed for comfort and privacy. Zero's Engineering Department can assist in evaluating possibilities for enhancing the performance of low-rated doors by adding one or two layers of SOUND SHEET. STC 3003 SOUND SHEET is easy to install on existing doors using a variety of methods, such as glue or staples, and can be painted with latex paint. Because it contains no lead, it is also safe to use. SOUND SHEET is available in black, red, brown, silver and white colors, and in thicknesses of 1/16, 1/8, 1/4 and 3/8 inches. For more information about Zero's products, contact Zero International. |