I had my whole house done in spray foam. Upon recommendation of my builder, we did open cell on the walls and closed cell on the roof. My electric bills average about $125/month, which in Texas, is exceptional. My builder thinks the low energy consumption is from being air tight as much as from the R value. Could be. We have to crack a window for the wood burning stove to get enough of a draw until it’s good and hot.
John
So you did not do the attic floor?
The only part of my house that has an attic is over the garage. We didn’t foam the attic floor there, just the walls and roof of the entire house. The rest of the house has no attic except a little under eave storage. The great room has a cathedral ceiling and there is a loft over the bedrooms, so no attic floor to insulate.
John
