Furnce vent/exaust through attic vapor barrier


Old 07-09-08, 06:29 PM
Thread Starter
Join Date: Jul 2008
Posts: 2
Furnce vent/exaust through attic vapor barrier

I'm installing a furnace (high efficiency) and two 2" pipes must enter my attic. This means a hole in the vapor barrier.

What should I use to seal around the pipe? The pipe is rated to 65C / 150F, but would likely be much lower for day to day operation. Would some good old spray foam do the trick?

Sponsored Links
Old 07-10-08, 07:20 PM
airman.1994's Avatar
Join Date: Dec 2005
Location: VA
Posts: 5,632
I no of nothing that will replace the hole in the VB,but Id do the spay foam as well.

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