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I have an unfinished second story that already has insulation put in. I purchased the house this way. There is a kneewall, a cold cieling and a regular cieling with an attic. The roof is galvalume metal, with tech sheild decking. The roof rafters have R19 in them. They are cupped to allow air flow. Below them in the cieling is R13 insulation. The kneewall also has R13. The cold cieling has R19.
I have spoken to 15-20 different people online and in person about it, had a few contractors out, and I have yet to get any sort of concensus on what is correct or not. Im nearly at the stage now where im going to just finish off the rooms as is. My last insulation contractor says its MORE than enough and he would not add anything to it. If anything, he would finish it off, and then come out during the peak heat with a heat gun and see how the current setup is performing, and then go from there.
I have spoken to 15-20 different people online and in person about it, had a few contractors out, and I have yet to get any sort of concensus on what is correct or not. Im nearly at the stage now where im going to just finish off the rooms as is. My last insulation contractor says its MORE than enough and he would not add anything to it. If anything, he would finish it off, and then come out during the peak heat with a heat gun and see how the current setup is performing, and then go from there.