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I am converting my garage into a wood shop and have insulated my walls with faced R13 insulation.The ceilings have faced R13 installed with R30 unfaced additional to the R13. Do I need to install plastic sheathing on the ceiling. I plan on installing 7/16 OSB sheathing on the walls and ceiling.

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    Is your garage a separate structure or attached to your home? – mikes Jul 27 '18 at 0:12
  • Attached garage – Robert Richling Jul 27 '18 at 22:05
  • You may want to check the local building code regarding fire resistant wall coverings in an attached garage. It doesn't matter what you use it for, if it has a garage door it is considered a garage in most localities. – mikes Jul 27 '18 at 23:23

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