Sell me on rigid foam exterior in climate zone 3A
Starting building on our dream house in a few months. Plan to live in for 30+ years. House will have Zip Sytem sheathing and will be well insulated on the inside, I will just leave it at that. Not interested in installing rigid foam on outside of roof sheathing (I have my reasons, so please don’t try to convince me otherwise).
So…. House fully exposed to sunlight. 1″ rigid foam with foil face. Strapped with cement fiber siding.
Sell me on all the reasons why this is worth the time/cost.