Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 01-25-2011, 10:38 PM   #1
Member
 
Join Date: Nov 2008
Location: West Michigan
Posts: 4,167
Share |
Default

Wet basement walls - New Construction in Winter


My son-in-law is having a house built (in Michigan) and is concerned about the basement cement walls being so wet.

The cement work was done the first and second week of December and the house has been sealed up and heat was turned on January 15th.

They surrounded the exterior walls with 2" foam boards before back filling.

Is this much moisture common in new basement walls?

Wet basement walls - New Construction in Winter-basement-1.jpg

Wet basement walls - New Construction in Winter-basement-2.jpg

Wet basement walls - New Construction in Winter-basement-3.jpg


Also, there is a puddle of water around the well poly pipe coming up through the floor near the pressure tank. Is this common?

Wet basement walls - New Construction in Winter-basement-4.jpg

Thanks in advance.

Barb

gma2rjc is online now   Reply With Quote
Old 01-25-2011, 10:47 PM   #2
Experienced
 
Jackofall1's Avatar
 
Join Date: Dec 2010
Location: Southern Michigan
Posts: 2,822
Default

Wet basement walls - New Construction in Winter


The insulation on the outside sounds perculiar to me, from all that I have read, the 2" XPS should be on the inside and the outside should have a water seal, XPS doesn't seal the wall!

http://www.buildingscience.com/docum...ent-insulation

__________________
When its all said and done there is usually more said than done
Jackofall1 is offline   Reply With Quote
The Following User Says Thank You to Jackofall1 For This Useful Post:
gma2rjc (01-25-2011)
Old 01-26-2011, 05:19 AM   #3
DIY staff
 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 21,474
Default

Wet basement walls - New Construction in Winter


That looks like condensation---what's the humidity level? Is the upstairs insulated and drywalled?

New construction takes a while to dry out--check the furnace--shut down the humidifier if it has one,

Get the heat up and dry it out.

Let's see what others have to say.---Mike---
__________________
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is offline   Reply With Quote
The Following User Says Thank You to oh'mike For This Useful Post:
gma2rjc (01-26-2011)
Old 01-26-2011, 07:12 AM   #4
Concrete & Masonry
 
Join Date: Nov 2008
Location: Wisconsin
Posts: 2,710
Default

Wet basement walls - New Construction in Winter


That's condensation as Mike stated. The warm inside air hits the cold area's of the wall that are exposed to the weather and the humid air condensates on the surface. Looking at the pics, I'd guess that the foam either isn't tight at the top of the wall, or it is missing above grade. All of this will be compounded by the kerosene "ready heater" (non-vented combustion put's ALOT of moisture in the air) and lack of insulation upstairs, if that's the case.
jomama45 is online now   Reply With Quote
The Following User Says Thank You to jomama45 For This Useful Post:
gma2rjc (01-26-2011)
Old 01-26-2011, 07:14 AM   #5
Concrete & Masonry
 
Join Date: Nov 2008
Location: Wisconsin
Posts: 2,710
Default

Wet basement walls - New Construction in Winter


Quote:
Originally Posted by Jackofall1 View Post
The insulation on the outside sounds perculiar to me, from all that I have read, the 2" XPS should be on the inside and the outside should have a water seal, XPS doesn't seal the wall!

http://www.buildingscience.com/docum...ent-insulation
Nothing wrong with it on the outside, it's done on all new basements here. It actually helps protect the damproofing coat from damage at backfill.
jomama45 is online now   Reply With Quote
Old 01-26-2011, 07:14 AM   #6
Retired from the grind
 
gregzoll's Avatar
 
Join Date: Dec 2006
Location: Midwest - Central Illinois
Posts: 14,030
Default

Wet basement walls - New Construction in Winter


It is still "Green" concrete, and still curing. Pouring during Winter time, means that it will take longer for the Concrete to set. As for the outside walls, who was it that thought to put the Foam panels on the outside, and did they do any type of waterproofing? I would not be surprised that the moisture is not coming from the fact that you have a warm inside, and cold outside, and with the foundation not sealed, guess where the water is always going to come through at.

Also, it appears that the moisture follows the grade outside, but without pictures from the outside, there is no way to confirm it.
gregzoll is online now   Reply With Quote
Old 01-26-2011, 07:43 AM   #7
Member
 
Join Date: Nov 2008
Location: West Michigan
Posts: 4,167
Default

Wet basement walls - New Construction in Winter


Thanks everyone.

I think you're right about the condensation. I'll have him check the humidity level down there and tell him to turn the heat up. Would it help to run a couple fans?

The foundation was sprayed with the black stuff. I didn't look to see if the foam board goes to the top of the foundation. I have a couple pics of the outside of the house. I'll take a look at them.

The upstairs is insulated and drywalled (as of last week and I took the pictures on Saturday) The furnace is running, so I don't think they're using the kerosene heater anymore. Except for in the garage, to heat the ground before they pour the cement floor.

Thanks again.

Barb
gma2rjc is online now   Reply With Quote
Old 01-26-2011, 09:27 PM   #8
DIY staff
 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 21,474
Default

Wet basement walls - New Construction in Winter


If they finished the drywall recently--there is a lot of wet mud drying along with the usual moisture from construction---Keep the heat going---DO NOT install any hardwood flooring until the humidity stabilizes.

Keep us posted--Mike--
__________________
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is offline   Reply With Quote
Old 01-26-2011, 09:55 PM   #9
Registered User
 
Join Date: Mar 2009
Posts: 9,968
Default

Wet basement walls - New Construction in Winter


Be glad they did.

Basic;
Installing insulation on the exterior or "dirt side" of a basement wall has the following advantages and disadvantages:
Advantages:
* it minimizes thermal bridging and reduces heat loss through the foundation,
* it protects the damp proofing coating from damage during back-filling,
* it can serve as a capillary break to moisture intrusion,
* it protects the foundation from the effects of the freeze-thaw cycle in extreme climates,
* it reduces the potential for condensation on surfaces in the basement, and
* it reduces the loss interior space when foundation insulation is desired, and
* it conserves room area, relative to installing insulation on the interior.
Disadvantages:
* installation is expensive for an existing building unless a perimeter drainage system is also being installed,
* many exterior insulation materials are susceptible to insect infestation, and
* many contractors are unfamiliar with proper detailing procedures.
From; http://www.espenergy.com/insulating_foundations.htm
Detailed; http://www.buildingfoundation.umn.ed...timum-main.htm

If you liked that…… http://www.nrc-cnrc.gc.ca/eng/ibp/ir.../ctus-n36.html
Insulated those rim joists; http://www.rd.com/57548/article57548.html
Gary
__________________
If any ads are present in my answer above, I do not condone/support/use the product or services listed, they are there against my permission.
Gary in WA is offline   Reply With Quote
Old 01-27-2011, 12:04 AM   #10
Member
 
Join Date: Nov 2008
Location: West Michigan
Posts: 4,167
Default

Wet basement walls - New Construction in Winter


Thanks for the great information Mike and Gary. I hadn't thought about the humidity level where wood flooring is concerned.

Lots of great information on those websites too. There sure is a lot to know about building a house that most people don't think of.

Barb
gma2rjc is online now   Reply With Quote
Old 01-27-2011, 05:19 AM   #11
DIY staff
 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 21,474
Default

Wet basement walls - New Construction in Winter


Quote:
Originally Posted by gma2rjc View Post
. There sure is a lot to know about building a house that most people don't think of.

Barb
That's why this site is here--Hopefully we can head off some mistakes--
__________________
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is offline   Reply With Quote
The Following User Says Thank You to oh'mike For This Useful Post:
gma2rjc (01-27-2011)
Old 01-27-2011, 05:43 AM   #12
Member
 
Join Date: Jun 2009
Location: atl & hilton head
Posts: 3,162
Default

Wet basement walls - New Construction in Winter


be particularly careful about the exterior grading,,, $ to donuts, the back-filling wasn't placed in compacted ' lifts ' so there will be settling of the disturbed earth back-fill,,, many local codes now require a toe drain about homes' foundations,,, unfortunately, those same codes do not usually include exterior sumps & pumps NOR drainage to daylight

stadry is offline   Reply With Quote
The Following User Says Thank You to stadry For This Useful Post:
gma2rjc (01-27-2011)
Reply

Tags
new construction, seeping basement walls, wet basement walls


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
FINISHING BASEMENT WALLS - Cinder Block Walls tmacwith Building & Construction 4 12-06-2012 08:26 AM
Damp basement walls cjjjer Building & Construction 1 04-02-2010 04:18 PM
basement walls chuckofaltrades Painting 1 10-27-2009 09:51 PM
Painting Basement Floor and Foundation Walls meth Painting 5 09-26-2008 07:54 AM
Hole in new construction basement wall AprilQ Building & Construction 5 07-08-2008 06:14 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.