R19 to R60?


  #1  
Old 11-09-22, 02:11 PM
G
Member
Thread Starter
Join Date: Nov 2022
Location: United States
Posts: 1
Upvotes: 0
Received 0 Upvotes on 0 Posts
R19 to R60?

Great web site here. The location is is the upper NW Virginia almost WV. The house is 30 years old total electric 1600 sq ft ranch no basement. I recently replaced the windows with newer energy efficient and new heat pump. The attic insulation is blown in R19 according to recent estimates. Recommendations have been to increase it to R30 and another to R60. Estimates are about $500 apart. Is it worth the extra to go to R60 or is R30 sufficient. Or the HD rental which will be a bout 1/2 the cost. The only other is the attached garage which has no insulation. My first impulse is it insulate it as this is a workshop area with portable heater for winter projects.
TIA for any recommendations
 
  #2  
Old 11-09-22, 03:31 PM
XSleeper's Avatar
Group Moderator
Join Date: Dec 2004
Posts: 27,319
Received 1,980 Upvotes on 1,774 Posts
Adding R30 would only give you R49, and for your zone, the dept of energy recommends a total of R60. As for the workshop, some insulation would be better than none, but I doubt you would want/need R60 there.

https://www.energy.gov/energysaver/insulation
 
  #3  
Old 11-10-22, 08:18 AM
Marq1's Avatar
Member
Join Date: Sep 2016
Location: USA MI
Posts: 9,745
Received 1,211 Upvotes on 1,099 Posts
Depends on how DIY your capability is, I've done several homes adding cellulose and it's a dirty job but simple. Just got to make sure your eve channels are in place and high enough to accommodate the additional material and that your comfortable walking around up there and have help to feed the bails.

The way I see it, the additional material cost is minor compared to the labor so go for the max!
 
  #4  
Old 11-10-22, 10:27 AM
XSleeper's Avatar
Group Moderator
Join Date: Dec 2004
Posts: 27,319
Received 1,980 Upvotes on 1,774 Posts
Yeah, it's a 2 person job to blow cellulose. One feeding the machine, one blowing it. And you need a respirator.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: