COMMUNITY FORUM

Tom19522

07:54PM | 07/09/11
Member Since: 07/09/11
1 lifetime posts
Bvmisc
I am having a problem in my house that no one can seem to explain or solve. Our house is 6 years old with brick front facing south. We live in Omaha, NE so we have hot humid summers. The problem we have is that in the summer we are having moisture appear on the vapor barrier on the exterior walls. The moisture is forming on the outside of the barrier (against the bat insulation). We tore out all the drywall last summer, replaced the insulation, installed a new vapor barrier and hung new drywall. This summer, we started to notice a damp smell again. I removed a portion of the drywall and the vapor barrier was covered with water droplets (looked liked condensation on a window). We have had numerous contractors over and no one seems to know why this is occurring. We don't have any leaks in the roof (that we can or any contractors can find). It simply looks like the outdoor humid air is meeting the cool vapor barrier causing condensation.

If we hadn't had everything professionally redone last summer, I would have thought there may be problems with the insulation. The construction is as follows from the exterior in - brick, air space, tyvek, particle board, bat insulation, vapor barrier, drywall. Every article I read explains that this is the proper and necessary way to construct the walls to avoid moisture from forming.

Is the vapor barrier necessary and is it causing the problem. What would happen if we reinstalled everything without the barrier?

Any thoughts you have or type of contractor you could refer us to would be greatly appreciated.

Thanks.

BV002945

11:12AM | 01/05/14
The moisture barrier is in the wrong place. Its being done this way every where. You have moisture protected against your sheetrock, but you are subjecting your framing members to massive amounts of water. Unless your framing is Treated, this is rotting wood. If you tore everything out and put back what was originally done wrong, its still wrong. I am a bricklayer and know how to frame. I'm also a tilesetter so I know a lot about moisture barriers since I build showers. The best thing to do is first seal the brick with a sealer from a masonry supply company, they come in 'breathable' where they let moisture out but not in. Tyvek is breathable so its not keeping moisture out, period. Anytime something is frozen where theres any humidity, its technically wet. So when your brick freezes it radiates into your framing, then your heated sheetrock means that the heat exchange happens at the vapor barrier, so its basically raining right there. If you tear out the drywall again, expose the back of the brick and apply a liquid asphalt coating, or 'tar'. This is the same product used to waterproof basement walls and roofing. You could add vent holes to the top of the brick wall which would create a air loop. Or figure out how to apply the plastic Outside the framing. Or just go old school and omit the barrier and let the drywall dry out the moisture. Or fill the brick cavity with Isenine(spray foam).
Click_to_reply_button
Inspiration_banner

INSPIRATION GALLERY



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.

Reply_choose_button

Anonymous

Post_new_button or Login_button
Register

Normally hung on a door this time of year, Indian corn can be a beautiful addition to the Thanksgiving Day table.  Here, t... Filling an underutilized area beneath the stairs is a smart way to save space. Doing so with a stash of wood, however, is ... The Audubon Society inspired wallpaper in this Adirondack-styled entryway will get you in the outdoor mood. Grab your coat... Chalkboard paint opens up endless possibilities for customizing your dresser time and time again. Use chalk to label the c... A fireplace in the bathroom creates the ultimate setting for relaxation. Homeowners often choose electric or gas over wood... Yes, a freestanding garage can become its own tiny house. Artist Michelle de la Vega has all the comforts of a modern resi... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... FLOR carpet tiles are a simple and affordable way to customize a floor covering for any space. You can make anything from ... Chalkboard paint features prominently in this elegant yet unpretentious headboard design. Add a new message daily to reflec... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... The indecisive homeowner need not fret over choosing one (or even two) cabinet colors. The kitchen cabinets in this artist... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... Simple and striking, a couple of pieces of "lovingly used" furniture creates a special kind of charm. A weathered chair fo... First dress up your metal shelves with a coat of paint in an accent color that complements your kitchen decor. Then arrang... The vibrant green of Granny Smith apples make a beautifully natural alternative to the traditional evergreen wreath. Brigh...
Follow_banner_a
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon
 
webapp1