||01-11-2012 06:27 PM
Insulation maitenance after remodel
I own a 1951 built house that is about to go through some major remodel. I am curious on what people think on how I should handle my insulation situation. In my attic currently, I have what can best be described as a thin layer (1-2 inches) of loose fill insulation, topped by rolls of R19 fiberglass insulation. I know that this is not enough, I am well below the minimum of R30 rated for my zone. Another issue with this insualtion setup is that the vapor barrier on the rolls is facing up.
My initial questions are - when adding additional (unfaced) insulation on top of everything, should I completely peel off the facing of the insulation or will cutting strips into the facing allow for enough moisture to pass through? Is it even worth to make either effort or should the faced insulation be completely replaced to eliminate any moisture from being trapped.
Adding a twist to this entire situation is the remodel of the house. Part of the remodel will involve removing the ceiling in certain, but not all, rooms. When this is done, both the loose and rolled insulation will fall through. The loose insulation will be near impossible to use again due to it getting mixed in with construction debris, but is it worth the trouble to re-use the rolls, but with the vapor barrier facing the correction direction? If I do not re-use any insulation, should I go ahead and replace the insulation in the parts of the house where the ceiling is not being removed?
The previous owner also added nailed a lot of wood planks to the ceiling joists, I think to make walking around up there easier. Will these planks cause any issues? I am mostly concerned about moisture being trapped.
In the end, insulation will be at least R30 in total, I am just hoping to figure out the best plan to solve both problems of under-insulation and incorrectly facing vapor barrier.