Concrete at base of shed (below ground) damp

Reply

  #1  
Old 08-01-15, 05:29 AM
Member
Thread Starter
Join Date: Jun 2014
Location: Canada, Quebec
Posts: 1,524
Received 0 Votes on 0 Posts
Concrete at base of shed (below ground) damp

The shed has about 5ft deep of concrete and about 4ft of that is below ground. Right at the bottom it seems damp, not sure if water is coming through or it's just condensation from rain water in the ground.
Is there a way to seal the cement from the inside?
There is no membrane between the outer concrete and the ground earth.
 
Sponsored Links
  #2  
Old 08-01-15, 05:32 AM
chandler's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: USA
Posts: 39,967
Received 2 Votes on 2 Posts
Is this a footing, poured wall, slab? Seems awfully thick for a slab. If you have water or moisture at 4' deep, I don't see how that can affect the slab itself. Certainly there is subterranean water that deep that does not extend upward to the surface.
 
  #3  
Old 08-01-15, 05:51 AM
Member
Thread Starter
Join Date: Jun 2014
Location: Canada, Quebec
Posts: 1,524
Received 0 Votes on 0 Posts
Think it's a poured wall.
Looks to be at least 6" thick.






 
  #4  
Old 08-01-15, 09:27 AM
chandler's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: USA
Posts: 39,967
Received 2 Votes on 2 Posts
It is doubtful any interior fix will be effective. Water can only be eliminated from the outside. Interim measures would include grading away from the building, gutters, downspouts with exits at least 4' from the walls. Basically get rid of the water.
 
  #5  
Old 08-01-15, 01:59 PM
Member
Join Date: Dec 2013
Location: usa
Posts: 1,334
Received 0 Votes on 0 Posts
maybe a couple sprayed-on coats of silicone siloxane would be your best bet,,, conc will 'wick' up water but not from 4' generally
 
  #6  
Old 08-01-15, 03:19 PM
Member
Thread Starter
Join Date: Jun 2014
Location: Canada, Quebec
Posts: 1,524
Received 0 Votes on 0 Posts
So, there's one section of rotting frame wood.
I can dig the ground more and put a negative slope.
How can I remove the rotten horizontal wood below the stud? Just cut it out and slot a new one in?
The main problem is that this area of land, with the shed, is at the bottom of a 100m high hill in the back. So, all rain runoff collects down there at some point. But it still shouldn't come through concrete unless there are cracks in the concrete?
 
Reply

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
 
Ask a Question
Question Title:
Description: