I've got a home in CS, built in the 80s. Utilities (electricity) kills us in the Summer. The a/c is plenty large enough, and is only four years old (Trane). I'm looking for inexpensive, yet effective, insulation in the attic. I've thought of several ideas. So, my question has several parts.
1) Would polystyrene panels installed between the roof joists effectively keep some heat from entering through the composite shingles into the attic?
2) Would it be better to simply add new roll-out insulation over the living area in the attic?
3) We've got an attic fan that works, but we only got it working this past August. Will it do more harm than good?
1) Would polystyrene panels installed between the roof joists effectively keep some heat from entering through the composite shingles into the attic?
2) Would it be better to simply add new roll-out insulation over the living area in the attic?
3) We've got an attic fan that works, but we only got it working this past August. Will it do more harm than good?