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  1. J

    How to properly insulate a non vented roof

    That's some good information. Unfortunately the roof is already up and covered in solar panels. Adding foam under the sheathing isn't really an option unless I am cutting to fit the cavities. I got a quote for spray foam but it's a lot of money (about $2200 for r30 equivalent). Any other options?
  2. J

    How to properly insulate a non vented roof

    I am enclosing what was a screen room off the back of my house and making it living space. The rafters are double 2x8. I was planning on using an R21 batt to insulate so I would have space for airflow. My drywall installer (also a GC) said I do not need to leave space since there is actually no...
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