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AltusGroup, a partnership of 21 North American precasters, recently published a technical brief explaining architectural properties of precast wall panels.
The brief outlines the acoustic performance of high-performance insulated wall panels and how they can be used to reduce the amount of outside sound reaching the receiver. It also discusses the sound transmission class (STC) rating system, which correlates with better performance of sound insulation.
Specific proprietary forms of precast concrete are designed to close noise gaps and create impenetrable barriers for outside noise, increasing STC ratings. These walls can be produced in large widths and full height modules with caulking and insulation at the joints, lowering the possibility of leaks or flanking as compared to steel or wood structures that might have multiple joints and connections.
The brief can be read here.
Other technical briefs by AltusGroup include acoustic properties, insulation, rain barriers and rain screens, and thermal efficiency.
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