I've got the chase open and am finalizing prep for the z42.
I'm hanging 1/2 inch cement board on both the sides and back of the chase going 6 feet up and was planning on just having insulation secured above that to the first firestop between the first and second floor.
Talking to a builder buddy of mine and he said it didn't matter if I used kraft backed insulation between thes studs and the cement board or if it was unfaced. This came about because I have had zero luck finding unfaced r13 insulation here in Indianapolis.
Given that the insulation will be exposed another three feet above the cement board line I'm looking for input on this (though I think I know the answer already).
there was NO insulation in the chase originally when I ripped out the old unit so I'm just making sure I'm doing this right once and for all.
I'm hanging 1/2 inch cement board on both the sides and back of the chase going 6 feet up and was planning on just having insulation secured above that to the first firestop between the first and second floor.
Talking to a builder buddy of mine and he said it didn't matter if I used kraft backed insulation between thes studs and the cement board or if it was unfaced. This came about because I have had zero luck finding unfaced r13 insulation here in Indianapolis.
Given that the insulation will be exposed another three feet above the cement board line I'm looking for input on this (though I think I know the answer already).
there was NO insulation in the chase originally when I ripped out the old unit so I'm just making sure I'm doing this right once and for all.