THE BEST SIDE OF SECONDARY GLAZING

I installed Prodex Quickly Motion in my Wooden shop about the ceiling plus the walls… It saved my shop awesome in the summertime. I find it irresistible.The general degree for sound masking must be established by an acoustical Expert and should not exceed 48 dBA in open up offices, libraries, cafeterias, corridors/hallways, forty five dBA in encl