I've done some searching on this and I'm struggling to find any data that shows the effectiveness of sound isolation brackets. I'm talking about the rubber (I think it's rubber) pad mounted to steel L-bracket things used for attached walls to other structures while keeping them isolated. I know plenty of people here use them when building walls in their basements - basically keeping the top plate 1/4" or so shy of the joist and holding the wall up using the brackets. I've also perused many theater builds where people did not use them.
Anyone know of any test data that shows their effectiveness? All I could find was one website that claimed an STC improvement of "at least 7". I'd like to hear anything about effectiveness, even if it's just anecdotal. For example, is a 2x4 wall with one layer 5/8 drywall and top plate attached to joists using isolation brackets better or worse than a wall with top plate firmly nailed to joists but with double drywall and green glue?
Has anyone built their own isolation brackets using readily available hardware store goods?
One thing that bothers me is the thought of using such a bracket to hold up a wall that will have a heavy door built into it - I usually like to assembly such things in a very solid, rigid way.
Thanks,
Chris
Anyone know of any test data that shows their effectiveness? All I could find was one website that claimed an STC improvement of "at least 7". I'd like to hear anything about effectiveness, even if it's just anecdotal. For example, is a 2x4 wall with one layer 5/8 drywall and top plate attached to joists using isolation brackets better or worse than a wall with top plate firmly nailed to joists but with double drywall and green glue?
Has anyone built their own isolation brackets using readily available hardware store goods?
One thing that bothers me is the thought of using such a bracket to hold up a wall that will have a heavy door built into it - I usually like to assembly such things in a very solid, rigid way.
Thanks,
Chris