With a completed wall or ceiling, the barrier should be mounted on to furring strips(no less than a one/two" thick) that will be hooked up to the existing drywall spaced sixteen" on Centre. This allows the barrier to generally be decoupled from the wall enabling the barrier One of https://griffinbsmbe.bloggosite.com/37460755/indicators-on-acoustic-laminated-glass-services-you-should-know