DIY Home Improvement Forum banner

Separating insulation in half??

513 Views 5 Replies 4 Participants Last post by  Windows on Wash
I’m insulating my 16x20 workshop. I’m currently doing the roof and want to leave the ceiling open to store things above. I have 2x6 rafters. I left a 1” air space for air to pass from my soffit to the ridge and I used 1.5” foam board that I got a really good deal on. It leaves me with 3” of space. I was wondering if fibreglass insulation can be separated in half. Ex: use 6” insulation and separate it in half to get 3”... I’ve searched everywhere online and can’t find an answer. Any help would be appreciated. Thanks
1 - 1 of 6 Posts
Better would be to add a 2x3 to the bottom of the rafters and use the 5 1/2" insulation.
Or just a 1x2 and use 3 1/2" insulation.
  • Like
Reactions: 1
1 - 1 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.