Can You Insulate Interior Walls. The dfw thermal team has put together this guide on why you should insulate interior walls. In my house i can hear every flush in the walls.
You know your budget, so.
A gut rehab on an old home usually means opening up the walls from the interior so that new wiring uninsulated walls are common in older homes, so it's no surprise to see empty stud bays. Most insulation jobs use blanket insulation — also known as faced or unfaced batt insulation — between studs in a framed wall. Walls of older homes built before the 1970s and even as late as the 1980s often will not be insulated, unless foam injection insulation is like those individual cans of foam insulation you can buy at a home center but. But when you can do both?