I am building a small, modified cape this October: 27x27, one bedroom, cathedral ceiling in the entire upstairs. We'll be sprayfoam the 12/12 pitch roof rafters. I am guessing you're in the same climate zone that I am here on the CT/MA border. Our code R-value needs to be R-60. How did SF. meet the code? Is there a different formula for SF R value? I thought it's R-7 per inch? Thanks in advance I just watched your finished tour.
Our code is R40 which I would need 2x12 rafters. We don't really have inspections up here in our small town. My roof is R24 amd I would bet 75% of the houses up here do not have R40 in their roof lol
@@phillipeloghomes I KNOW spray F. is so much better than batt hey they apply the same R value. When heat or cold hits batt ins. especially with a good wind the R value drops dramatically. Ya know, maybe our R value is 40 for a cathedral ceiling.
