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Insulating flat roof from inside ceiling

5K views 3 replies 3 participants last post by  PoleCat 
#1 ·
Hello I am currently renovating the second floor of a house. I tore out some walls and have noticed that there is old blown in cellulose. It is very sparse and needs to be improved upon drastically.

I was thinking of blowing in some pink. The joists are 9" deep and this would give me an Rvalue of 32. Not great but much better then what is there. I don't want to have to tear out the ceiling. I am going to blow it in through the existing gaps and cut some new ones.

Any opinions appreciated. Including pics.
Thanks
 

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