ACOUSTIC PERFORMANCE DATA TABLES - INSULATING ACOUSTICAL DATA VS LAMINATED - MAINE GLASS GLAZING OPTIONS FOR SECONDARY GLAZING

Interior Acoustic Glass is made from combinations of various glass types along with acoustic window frames. This helps you to effectively reduce sound transmission from airplanes, trains, vehicles and other unwanted noises. The performance data below applies to laminate glass. Data is based on testing 36" x 84" glass to ASTME413-87 in an acoustic wall. *OITC is estimated based on this test. Glass size and glazing system will affect STC rating.

The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used to categorize acoustic performance. Its original intent was to quantify interior building partitions not exterior wall components. As a result, exterior wall applications must account for both the existing window STC rating in conjunction with the new interior window STC rating. When measured together in real-life applications the combination of these two windows produces a very low transfer of noise. These characteristics are very important in keeping hospitality, health care and general office space comfortable.

Laminated glass is an excellent insulator of noise and when used in conjunction with an existing window system and provides excellent insulative factors for heat loss. Compared to Insulated Glass Units (IGUs) which have air or gas in space instead of a material like PVB, laminated glass does not have to be warrantied for failure. IGU will fail at some point, and the air space will become cloudy.

The first number is the STC rating and the second number is OITC The OITC (Outside-Inside 1/4" overall - 1/8" glass, .030" PVB, 1/8" 1/4" overall - 1/8" glass, .045" PVB, 1/8" glass 35 31 5/16" overall - 1/8" glass, .060" PVB, 1/8" glass 35 31 3/8" overall - 3/16" glass, .030" PVB, 3/16" glass 36 33 9/16" overall - 1/4" glass, .075" Saflex Storm, 1/4" glass 36 35 9/16" overall - 1/4" glass, .090" SentryGlas , 1/4"glass 36 34 9/16" overall - 1/4" glass, .100" StormGuard , 1/4" glass 37 35 1/2" overall - 1/4" glass, 030" PVB, 1/4" glass 38 34 1/2" overall - 1/4" glass, .045" PVB, 1/4" glass 38 34 9/16" overall - 1/4" glass, .060" PVB, 1/4" glass 39 34