how does altitude affect mean temperature? 10 points to the first answer!!!
Temperature declines with altitudeThe higher you are, the lower the temperature isThere are several factors that bring this about - one is the intensity of the sun's rays, another is the thickness of the airAt higher altitudes, the air is literally thinner and, just as a thin blanket doesn't retain as much heat, the thin air doesn't retain as much of the sun's warmth.
R-38 should be more then enough for ceilings in KentuckyOver time yes does start to compact down a bit and will have to be redoneIf it is also being done in the walls then it will have to be done and then redone there as well One of the best insulation that i know of is the foam sheets with the aluminum on the one sideThis is usually the more expensive type but worth it over the long run.
Tell him that you want to see the empty bags that he usedR-values should not break down, but if they blow it into the walls it will eventually settle and you will have an uninsulated gap in your wallsSo I do not suggest that at allthey should put rolled insulation in all vertical surfacesIf you want to go extreme with your insulation you could always have him add kraft-faced insulation between the roof rafters.
Don't insulate over the recessed cans unless the cans are rated type IC.
