Doubling insulation


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

81/4" cathedral ceiling depth
Sponsored Links
Old 10-03-19, 04:31 AM
Group Moderator
Join Date: Mar 2003
Location: NC, USA
Posts: 23,773
Received 634 Votes on 586 Posts
OK... What's your question????????????????????????????
Old 10-03-19, 04:47 AM
Join Date: Jan 2015
Location: USA
Posts: 710
Received 30 Votes on 28 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.
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
Ask a Question
Question Title:
Your question will be posted in: