Comments on: Moisture Barriers

By: garry etters

garry etters — Sat, 06 Feb 2010 18:16:00 +0000

I AM REQUESTING INFORMATION…i purchased an older home, all of the exterior walls are NOT insulated. i am planning to build new 2×4 walls on the interior side of the existing walls do i use faced or non-faced insulation and do i need a vapor barrier on the new walls? if so, what side of the new wall do i put it? i live in the ozarks it does get humid in the summer and also the home has central air if that makes a difference. thanx to anyone that can shed light on my dilemma.

By: Sean O'Rear

Sean O'Rear — Tue, 08 Sep 2009 14:07:44 +0000

George,

I would not put them between the joists and the decking because that will prevent using construction adhesive to join the decking to the joists (which eliminates floor squeaks) and it will poke a hole in the vapor barrier every time you nail the decking to the joists. I would only recommend these be placed on the ground.

Thank you for your comments.

Sean O’Rear

By: Sean O'Rear

Sean O'Rear — Tue, 08 Sep 2009 14:04:46 +0000

Jason,

It depends on if your crawlspace is a conditioned space or not. If you are going to heat and cool the crawlspace, then you should not need a moisture barrier. However, if it is going to remain unconditioned, you might consider adding one. They are very cheap and very effective.

By: George Rowe

George Rowe — Tue, 08 Sep 2009 00:03:25 +0000

Great article. I’ll likely re-post to others as well.
I am planning to build some 8×8or12 storage/workshop buildings which will be on platforms of 2x treated boards covered with particle board. I am considering vapor barriers either on the ground under the 2x frames or on the frames under the sheeting. Your suggestions if you have the time will be much appreciated.
I’ll soon have another web site where I plan to have notes and comments related to realty.
George
George Rowe Realty

By: Jason

Jason — Mon, 07 Sep 2009 21:32:41 +0000

Great detailed info, really opened my eyes more….I am doing an addition on my house, the question I have is…Do I need vapor barrier if my crawlspace is concrete slab instead of dirt. I might as well but just want to know?

By: Sean O'Rear

Sean O'Rear — Sat, 18 Apr 2009 18:18:58 +0000

You are welcome to re-blog anything on this site. You can use trackbacks of pings to link back to this site. I appreciate your feedback!

By: Reuben Saltzman

Reuben Saltzman — Sat, 18 Apr 2009 11:26:28 +0000

I like your writing style. That’s a great description of a crawl space vapor barrier. Would you mind if I ‘re-blogged’ this entry on to my own site? I’ll give you credit for it and I’ll include a link to your site at the end of the blog.