Matt and I decided to take down the ceiling panels as well as side panels and remove the old fiberglass insulation and replace it with a closed cell foam. We decided to go this route because we didn't know what kind of shape the old insulation was in and didn't want to risk something happening while we were on the road. This also allowed us to inspect the condition of the metal on the ceiling, which we actually discovered a good chunk a soaking wet insulation from a leaking emergency exit hatch. The foam will give us better sound dampening and an R value (insulation rating) of 6 to 6.5 per inch. Our first thought was to use a metal grinder and grind them all off, but it wasn't efficient on the 1/2 inch rivets. We tried a few other methods and after about 4 hours of trying different methods and researching and asking friends questions, we found that using a heavy duty pneumatic hammer with a punch head was very effective in removing the pins and then switching out to a 3/4 inch chisel head to take off the heads. In about 5 hours, we got the entire ceiling removed and fiberglass insulation taken out.
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