SOUND BARRIER® carries a full line of high quality Truss, Stage and Roofing systems designed for live stages, theatres, night clubs, church installations mobile applications. All our systems bear the certification mark from TÜV, a third party certification body and a Nationally Recognized Testing Laboratory (NRTL). Real-world customer input helped us develop new products that are easy to use and service, meet international standards and deliver maximum value-for-cost.