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Discussion Starter · #1 ·
Hello Members,

We are building a series of condos. The original design is to add resilient channel to joist and two layers of 5/8th drywall. The drywall installers missed adding the sound bars and we proposed to install the res bars to drywall and add another layer of drywall. But the STC needed is 50. Will I be able to achieve with anything apart from ripping down everything and doing as per the plans?
 
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