DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Flooring > Laminate Flooring on Two Different Concrete Heights




Reply
 
Thread Tools Search this Thread Display Modes
Old 12-14-2010, 04:23 AM  
mrken
Junior Member
Join Date: Aug 2010
Location: Vancouver, BC
Posts: 6
Default Laminate Flooring on Two Different Concrete Heights

I am planning to install laminate flooring in a room the main level of a concrete slab. After peeling off the original carpet, there appears to be a few inches of uneven concrete that runs along the drywall covering the exterior walls (but not the interior walls). (Please see attached photograph.)

There is around an inch or two of blue polystyrene with a plastic moisture barrier between the "outer" concrete and "inner" concrete. The "inner" concrete appears to have been levelled (1/8-inch maximum imperfections), but approximately 1/2 inch lower than the "outer" concrete.

What should I do to raise the "inner" concrete floor to achieve a constant level throughout the room? Would I need to use levelling compound on the few inches of "outer" concrete?

Unrelated to the topic of flooring: Is the protruding "outer" concrete part of the concrete slab foundation?

Thank you in advance!


floor.jpg  
mrken is offline  
 
Reply With Quote
Old 12-14-2010, 08:36 AM  
samfloor
Carpet Installer
 
samfloor's Avatar
Join Date: May 2010
Location: Buckner, Missouri
Posts: 230
Liked 25 Times on 21 Posts
Likes Given: 5

Default

Looks like a converted garage. That outer concrete is footing. It was poured, the walls put up and the floor was poured later. They always pour the footing wider than the wall they are going to build on it. In a garage, it really isn't going to matter. When it's converted to living space, it can be a hassle.


__________________
[url]http://www.flooringforum.com/forum/[/url]


(AKA Floorist, Rusty Baker)
samfloor is offline  
 
Reply With Quote
Old 12-14-2010, 12:35 PM  
mrken
Junior Member
Join Date: Aug 2010
Location: Vancouver, BC
Posts: 6
Default

Sadly, it is a 2100 square feet home in expensive west-side Vancouver that cannot possibly be a converted garage... I had just bought the home at 15 years old and do not have a history of the builder.

Would using 1/2 inch extruded polystyrene be okay to raise the "inner" level?
mrken is offline  
 
Reply With Quote
Old 01-10-2011, 02:37 AM  
nealtw
Contractor
Join Date: Nov 2010
Location: Upper Fraser Valley, British Columbia
Posts: 13,550
Liked 1358 Times on 1198 Posts
Likes Given: 2340

Default

I have seen this before, actually so this happenin my area last year and I would bet that you are on a hill and part of your foundation is full height front or back. The builder is a jerk. After fixing one screw up with another and then didn't compact the fill so the slab sank right away and he used the foam to fix that screw up. I would l level as best you can and install your floor. If I am right about the high wall I can tell you all the mistakes he made.
nealtw is offline  
 
Reply With Quote
Old 01-11-2011, 02:01 AM  
mrken
Junior Member
Join Date: Aug 2010
Location: Vancouver, BC
Posts: 6
Default

The concrete slab is on a very flat piece of land...

Please share his mistakes regardless.
mrken is offline  
 
Reply With Quote
Old 01-11-2011, 12:46 PM  
nealtw
Contractor
Join Date: Nov 2010
Location: Upper Fraser Valley, British Columbia
Posts: 13,550
Liked 1358 Times on 1198 Posts
Likes Given: 2340

Default

When you say level ground, does that mean you don't have any part of the concrete wall that is full height as in 8 ft.
At minimum he should have put the slab on top of the footing and may have been to cheep to put in the backfill. You can be sure it was level when the slab was pored so it sank before the carpet was put in.
nealtw is offline  
 
Reply With Quote
Old 01-15-2011, 10:59 AM  
joecaption
Senior Member
Join Date: Jan 2011
Location: Hartfield VA, VA
Posts: 1,518
Liked 88 Times on 71 Posts
Likes Given: 2

Default

What a horrable job they did. Should be ashamed of thereself.
Impossible to tell over the web just what to do on this one.
I think I would start by getting some contact info from my local concrete suppyer on some of there customers that do what's called flat work or finishers. There the people that do nothing but work with things like pads and sidewalks.
They can tell you if the pad sunk, what to do about it, and how they can fix that mess.
It looks to me like someone shorted the load of concrete and ran out before the whole thing got covered.
joecaption is offline  
 
Reply With Quote
Old 01-31-2011, 08:40 PM  
nealtw
Contractor
Join Date: Nov 2010
Location: Upper Fraser Valley, British Columbia
Posts: 13,550
Liked 1358 Times on 1198 Posts
Likes Given: 2340

Default

So what have you done with this?


nealtw is offline  
 
Reply With Quote
Reply


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


Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
Laminate Flooring Shifting... AlmostAble Flooring 5 02-04-2010 07:52 PM
Laminate Flooring around a brick fire place Theblacksheep@msn.com Flooring 4 12-01-2009 03:44 AM
Laminate Flooring connor_clark Flooring 2 11-05-2007 04:51 PM
Which way do I run the Laminate Flooring? Fat B Flooring 4 09-30-2007 09:00 AM
Can I install cabinets over Laminate flooring? Fat B Flooring 3 01-26-2007 07:37 AM

Newest Threads

LATEST SPONSOR DEALS