BigGMC
Well-known member
Throwing this out there for discussion/input.
Last winter I bought a small roll of Johns Mansville kraft faced, R-11? (for 2x4 walls) for a small house project. I remember that once I cut the tape around the roll, it wanted to expand and unroll itself. Had to keep the roll up against the wall, else the whole thing would uncoil all across the floor. It immediatly fluffed up once unrolled and more than filled the wall cavity.
On the other hand, I recently bought a roll of Owens Corning unfaced r-19, for 2x6 walls, to insulate the two bays behind the breaker panel in the garage. Its thier "comfort touch" or something like that - not supposed to be as itchey, dosen't matter to me, but it's what was on the shelf.
Cut the roll wrap off, carefully, expecting the roll to take off like before. Never happend, actually had to fluff the piece to expand it. Didn't seem as dense as the JM product and it didnt' really fill the wall cavity either.
Wondering if OC stuff has gone downhill, or maybe this is a trait of the "comfort touch" product. Even tho I'm comparing faced to unfaced, I expected them to sort of act the same. Perhaps the kraft facing made the roll want to unroll itself, but the OC stuff didn't expand very much at all on its own.
Last winter I bought a small roll of Johns Mansville kraft faced, R-11? (for 2x4 walls) for a small house project. I remember that once I cut the tape around the roll, it wanted to expand and unroll itself. Had to keep the roll up against the wall, else the whole thing would uncoil all across the floor. It immediatly fluffed up once unrolled and more than filled the wall cavity.
On the other hand, I recently bought a roll of Owens Corning unfaced r-19, for 2x6 walls, to insulate the two bays behind the breaker panel in the garage. Its thier "comfort touch" or something like that - not supposed to be as itchey, dosen't matter to me, but it's what was on the shelf.
Cut the roll wrap off, carefully, expecting the roll to take off like before. Never happend, actually had to fluff the piece to expand it. Didn't seem as dense as the JM product and it didnt' really fill the wall cavity either.
Wondering if OC stuff has gone downhill, or maybe this is a trait of the "comfort touch" product. Even tho I'm comparing faced to unfaced, I expected them to sort of act the same. Perhaps the kraft facing made the roll want to unroll itself, but the OC stuff didn't expand very much at all on its own.