Question: What insulation do you have to meet my code?
David writes from San Jose, California: "I have a vaulted ceiling with 9" x 2" rafters (6x2 + 4x2 added on). I need to follow code - which is R30. What can I do? What type of insulation do you have to meet my code?"
Answer: I recommend Owens Corning R-30C insulation. It is a high density fiber glass insulation that measures 8-1/4".
