DIY Chatroom Home Improvement Forum

DIY Chatroom Home Improvement Forum (http://www.diychatroom.com/)
-   Building & Construction (http://www.diychatroom.com/f19/)
-   -   To remove or not to remove tar paper, that is the question (http://www.diychatroom.com/f19/remove-not-remove-tar-paper-question-49957/)

Jeremy Hillary Boob, PhD 07-30-2009 07:49 PM

To remove or not to remove tar paper, that is the question
 
I have an exterior wall that is about to become an interior wall, due to my efforts to enclose an entryway area. The top part of this exterior (soon-to-be interior) wall is adjacent to a small attic area. I temporarily removed the siding that covers this attic so that I could add some insulation. There's tar paper behind this section of siding, and I was wondering whether I should leave it or remove it---the tar paper, that is.

If I leave the tar paper (which would be slightly easier) then I'd have attic, insulation, tar paper, T1-11 siding, drywall, new foyer/entryway, in that order. Given this scenario, is the tar paper a) a good thing, b) a bad thing, or c) something that only an anal-retentive DIYer would worry about?

Gary in WA 07-30-2009 08:47 PM

Doesn't this connect the two attics so you would remove it for access? Be safe, G

Jeremy Hillary Boob, PhD 07-30-2009 09:27 PM

Quote:

Originally Posted by GBAR in WA (Post 308754)
Doesn't this connect the two attics so you would remove it for access? Be safe, G

No, there is no attic in the new space. The attic is adjacent to the top part of the wall of the new foyer. I'm just wondering whether the tar paper might not trap moisture since it'll be situated between the insulation (in the attic) and a finished (interior) wall.

Maintenance 6 07-31-2009 02:59 PM

Will the tarpaper be on the warm in winter side of the insualtion or on the cold side? If on the cold side of the insulation, remove it. If on the warm side, it won't hurt to leave it, as the heat from the structure will keep it above dew point and prevent any condensation.

EZHangDoor 02-27-2011 09:34 PM

Quote:

Originally Posted by Maintenance 6 (Post 309074)
Will the tarpaper be on the warm in winter side of the insualtion or on the cold side? If on the cold side of the insulation, remove it. If on the warm side, it won't hurt to leave it, as the heat from the structure will keep it above dew point and prevent any condensation.

Agreed, you could also use a utility knife and cut a bunch of slits in it. This would allow water vapor to pass through. If it was mine and it was on an interior wall, I would remove it.


All times are GMT -5. The time now is 02:18 AM.