When our previous home was being built, I did a Manual J heat load calculation to see how much HVAC we needed. The HVAC contractor did also and we were pretty close to each other. I was surprised to see that most of the heat gain/loss was through the windows. The conclusion I reached is that you need "enough" insulation in the walls but beyond a certain point it doesn't make much difference. We have a concrete block house in The Villages and I know it was built to code but I suspect a bit more insulation in the walls would have been worthwhile. Our previous home was something like R-20 in the walls which probably explains why the windows were the main area of heat loss/gain. I knew this going in and didn't stop me from buying in The Villages.
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Originally Posted by NavyNJ
Lyle: Those certainly would have been nice options to have! Would have probably opted to do that for sure!
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