Thank you for your time to answer my question!
I have 700 square feet to insulate — is an attachment room to a frame house, built very poorly, and is very cold and hot. I’m doing now fixing up.
Question: I have walls 3 inches deep, and celling is 12 inches deep. I was going to spray foam with closed cell.
Can I maybe (to reduce cost) install fiber insulation? Or styrofoam, 1-2 inches, then spray with closed-cell over that?
Or is it a good idea to spray one inch of closed-cell and do the rest with open-cell over closed-cell?
Will there be big difference in closed-cell vs open-cell if I spray using only one type?
And last question: What is the best way to heat this room? Efficient by using electric heat?
I can’t use regular baseboard heaters. I need some other idea if you know.
What is the best way to insulate the room? Can I use a combination of spray foam (closed-cell) with some other material to reduce the cost and still be efficient?
See pictures — how it looks now.
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