Insulation Questions for Rooms and Attic
Im currently remodeling our bedroom and we (me and the wife) decided to just go for it all and do all we could while we were doing the work and insulate everything we could, update the electrical, resurface the hardwood floors and so on.
One of the things we are really focused on is energy efficiency. I realize things have to breathe some but beyond that I want to insulate to the max, LOL.
We have the bedroom walls tore down (drywall is down, insulation is out). I have not yet tore down the ceiling drywall, been debating on whether or not to do that, but the recent desire from the wife to add recessed lighting may motivate me to just pull that down as well and install the lighting, even though I know I could use the remodel can lights.
Ive got the wiring in for the receptacles (old wiring was 14/2 and one circuit breaker turned off lights and recept's to all three bedrooms and the recept's were ungrounded two prong type) using 12/2 with a ground. there were only two outlets in the room and we have now increased that to 5. With an additional recessed recept to be added on its own circuit for the wall mounted LCD TV.
Anyway, on to the point. The house is a brick exterior house, with what I can only call (dont know the technical name) some kind of fiber board between the brick and the wall framing (2 x 4).
I live in Oklahoma, and I have one roll (will get more) of R13 insulation with the vapor barrier, plastic wrapped fiberglass. Im wondering, do I need to put up a vapor barrier before I install the insulation even though it has its own vapor barrier?
I wanted more than R13 but could not find any R19 locally with a vapor barrier (we only have a Lowes locally, no Home Depot or any other home supply store). I wanted to use nothing but rigid foam insulation but Im not sure how practical that is. Is there anything else I can do to further insulate while I have the walls down?
With regards to attic insulation. I went up in the attic and it looks like there is patches of new insulation here and there with reflectix laid over the top of that. Predominantly there is what appears to be loose fill insulation, very old looking that doesnt even reach to the level of the rafters, maybe 2.5" thick if that and what new insulation is up there has been laid over the top of it.
In re-insulating the attic, do I need to go ahead and pull out all that old insulation? That stuff looks nasty and is super super dusty. My thoughts/plans were to just go ahead and take it all out, lay down two layers of insulation and put reflectix back over that. Any thoughts?
Okay, I'll stop there, sorry for the long post and thanks in advance for any help and advice.