Originally Posted by Bystickel
I read through numerous debates on what to use for wall insulation. I want to use Rockwool mineral wool, but can't seem to find anything that seems suited.
People mention Rockwool, but don't seem to specify which product I need something very close to 1.5" to fit within my 1960's walls. I have no clue how compressible Rockwool is.
Does anyone know what product that's flexible and comes closest to fitting?
If this doesn't work out, it's pink insulation for me.
GTS Interior Supply in Missoula should have the 1.5" mineral wool in stock. I think they carry the John Manville brand.
My local Home Depot has 1.5" RockWool in stock, but most HD stores don't keep it.
Any specialty supplier that caters to commercial drywall contractors should have "sound attenuation and fire safeing insulation". That's what most people call 1.5" mineral wool in my area.
I've have used this material a lot in commercial construction for sound attenuation and fire safing. It is flexible enough to bend around the curves in your trailer walls. However, holding it in place in those curves, prior to installing the interior skins, might be a challenge.
It has an R-Value of about R-3 per inch, so it will only give you ~4.5 total thermal resistance rating.