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Old 11th June 2009
Here for the gear

Originally Posted by bpape View Post
For 6 or 8" thick panels, you don't need the extra density. The 3lb 703 or 4lb mineral wool will be just fine.

For the 4" panels, the higher density will give you a little benefit in the bottom.

For reflection control, again, no need to spend the money on the higher density.

Thanks for the input Bryan. Your comments helped clarify this point for me.