Attached garage finishing


  #1  
Old 06-28-14, 08:41 AM
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Attached garage finishing

All,

I am remodeling my 2 stall attached garage. The garage has 2 different garage doors that are 9x7. There are also 2 different walls that abut the house. I plan on using Sheetrock for finishing. I have a few questions...

1. What thickness of rock should I use?

2. How should I insulate and should I use vapor barrier? The 2 walls that abut the house have insulation in the walls...I thought about replacing it all, good or bad idea?

3. Am I supposed 2seal the rock at the bottom where it meets the concrete?

Thanks for the help

Greg
 
  #2  
Old 06-28-14, 08:50 AM
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If you remove whatever wall covering is currently on the house side walls - it needs to be replaced with 5/8" fire rock to meet code. 5/8" is best on the ceiling also. You can use 1/2" drywall on the rest, your choice.

A lot depends on the condition and R rating of the current insulation. The vapor barrier goes on the house side of the common wall. You don't want a vapor barrier on both sides of a wall!

It's best to stop the drywall short of the concrete floor so it won't wick up any moisture that gets spilled or when washing out the floor.
 
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Old 06-28-14, 09:10 AM
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The 2 common walls do not currently have a vapor barrier on either side. Is it ok to put it on the garage side?
 
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Old 06-28-14, 02:20 PM
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I don't know Doesn't the insulation have a paper face on the interior side?
 
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Old 06-28-14, 06:59 PM
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Yes, the side that faces the house has a paper face
 
  #6  
Old 06-29-14, 03:21 AM
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While a plastic vapor barrier is better, paper facing was used for yrs as a vapor barrier. Not my area of expertise but you aren't supposed to have 2 vapor barriers, either one or the other.
 
 

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