Need some guidance on insulating my attic. Here are the details:
-Currently there is no insulation
-The house is built with 2X4 Joists that sit on sill beams at the front and back of the house
-I have recessed lighting cans installed in 2nd floor bedrooms, the cans are rated IC to contact insulation
-I live in the NorthEast where it gets cold in the winter, and hot in the summer
-The house is old (1920's)so there isn't really any insulation so I don't expect a leak proof house, just want to get lots of insulation into the attic to help keep the 2nd floor warmer, and keep the heat from escaping easily.
What type of insulation should I use?
If I go with the rolls/batts, I've researched that I definitely should use a faced insulation and put the faced side downward leaving just the the fiberglass facing upward. I read that you could even install sheets of foam insulation over the rolls/bats in the joists to help even further but I've never seen that done.
I've considered the blown stuff but even though that seems to be more efficient it seems like more of a mess in the long run?
I have 14 recessed light cans installed on the 2nd floor and those are protruding well above tte 2X4 Joists. Lowes rents the machine for $20 a day so that isn't bad, I've just never done this nor has anyone I talked too.
Seems like most people say R-30 but I also read on an energy stat type site that R-38 to R-60 could be used if I go with Fiberglass type.
What To Do?
Was thinking of just buying fiberglass rolls in Either R-30 or R-38 or R-60 and putting it in the joist bays and calling it a day.
I have access to unfaced R-30 so I was thinking I could put down faced insulation first between the joists, and then put the R-30 unfaced running perpendicular to the joists on top of that for 2 solid layers of insulation.
Consider blowing it in.
Any tips appreciated!