Also,forgot to mention. Re the floor; 3/8 plywood glued and screwed to the underside of the joists gives 'tremendous' boost to rigidity and is how I would go if building new or renovating today. Between floors I like a second layer of press fit insulation resting on the plywood base.
I'm with needlefree re the benefits of QuietRock drywall. They claim 1 sheet of their 5/8 is equal 7 sheets of normal drywall if I remember correctly.
I'm with needlefree re the benefits of QuietRock drywall. They claim 1 sheet of their 5/8 is equal 7 sheets of normal drywall if I remember correctly.