Doubling insulation


  #1  
Old 10-03-19, 03:37 AM
C
Member
Thread Starter
Join Date: Oct 2019
Posts: 1
Upvotes: 0
Received 0 Upvotes on 0 Posts
Doubling insulation

81/4" cathedral ceiling depth
 
  #2  
Old 10-03-19, 04:31 AM
P
Group Moderator
Join Date: Mar 2003
Location: NC, USA
Posts: 27,657
Received 2,153 Upvotes on 1,928 Posts
OK... What's your question????????????????????????????
 
  #3  
Old 10-03-19, 04:47 AM
T
Member
Join Date: Jan 2015
Location: USA
Posts: 961
Received 109 Upvotes on 97 Posts
I'm guessing your question is about the amount of insulation that can be placed in a space 8 1/4" high. If so, the answer is 8 1/4". Placing more insulation isn't only worthless but compressing insulation reduces it's effectiveness.

Not all insulation is equivalent, though. You may be able to increase the insulation's benefit by using a type of insulation with a higher R-value. For example, foam insulation can be superior to other insulation materials.
 
 

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