Insulating mudroom that is inside garage

Reply

  #1  
Old 11-05-07, 03:54 PM
Member
Thread Starter
Join Date: Feb 2007
Posts: 51
Insulating mudroom that is inside garage

I am building a garage and I will have a mudroom that is in the garage going into the house. The mud room is framed on the inside of the garage. We live in VA and get somewhat cold winters and hot summers. My contractor could only use drywall, stud, r-13 insulation and then drywall based on the door entering the mudroom. Do you think this enough insulation or should I have him upgrade to R-18. He was suppossed to use r-18 but when I got home tonight i saw the r-13 in the walls. 2x4 stud walls. Thanks
 
Sponsored Links
  #2  
Old 11-05-07, 08:08 PM
Member
Join Date: Mar 2007
Location: New Hampshire
Posts: 450
I believe the most R-value you can get in a 2x4 wall is R-15 with high density fiberglass. You can't take fiberglass thats made for 2x6 and shove it into a 2x4 and expect it to maintain its R-value because it won't.
 
  #3  
Old 11-06-07, 02:50 AM
Member
Join Date: Nov 2007
Location: Northwest Ohio
Posts: 24
insulation

Adam is correct in our area the most you can put in a 2x4 wall is r-13 anything biger will not have the r-value plus if you try to put a thicker insulation in a small space it will try to expand and push the dry wall off. Jack
 
  #4  
Old 11-07-07, 07:17 PM
Member
Join Date: Mar 2007
Location: New Hampshire
Posts: 450
Well, you wouldn't have to worry about it trying to push the drywall off because fiberglass doesn't have any real force behind it. You could take a R-30 batt and put it into a 2x4 wall without problems, BUT it just won't be a R-30 batt anymore and would be a complete waste of money.
 
  #5  
Old 11-07-07, 07:31 PM
Member
Join Date: Nov 2007
Location: Northwest Ohio
Posts: 24
have you ever tride to put 9" of insulation in a 3.5" wall cavity this does'nt mean it can't be done it shouldn't be done like putting 2 tons of crap in a 1 ton truck something has got to give, open a bag of insulation what is the first thing that happens it expans. some of this stuff is just comon sense.
 
  #6  
Old 11-27-07, 05:22 PM
Member
Join Date: Aug 2007
Posts: 8
Question along the same vein.

Detached garage; 2x4 walls & 2x8 ceilings.

Very cold winters and reasonably hot summers (high of 90-95* F).

I've got R-13 in the walls & ceilings.

Locally I have seen people run R13 batt in the walls, then face that with hardfoam boards (instead of drywall)... is this reasonable?
 
  #7  
Old 11-28-07, 02:52 AM
Banned. Rule And/Or Policy Violation
Join Date: Oct 2007
Posts: 176
nikuk, that will work fine but will not pass any inspection,,, if that matters, it will not meet fire codes without something such as drywall or tin covering it.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes