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Removed old carpet and floor is heaving in line with stairway, what are my options?

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Posted by: from Edmonton
6/10/2014 at 12:36:40 AM

Hello,

I'm currently renovating the main floor on my older home (built in the 70s) and the next step is tiling everything. As I was ripping out some older carpet I noticed the floor was heaving right in line with the stairway. I cut out a piece of the subfloor but it's still out of level. I believe there is a telepost right underneath.

I just wanted to get some opinions on how to approach this situation, and what may have caused this problem?

Please let me know if you need anymore information, this is my first time posting on the forums.

Thanks

Removed old carpet and floor is heaving in line with stairway, what are my options?
Removed old carpet and floor is heaving in line with stairway, what are my options?
Removed old carpet and floor is heaving in line with stairway, what are my options?
REPLIES (3)
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Date/Time6/10/2014 at 2:59:33 PM

Most likely there is a beam under your hump. As a house settles the floor will sag, but not so much under beams and load bearing walls.

There is a number of ways to level it for tiles. You can shave down the plywood until it's close to level with the rest of the floor. Remember you do have some flexability with the tile thinset to level it also. Another option is to use self levelling cement over the whole floor. It's expensive, but you end up with a perfectly level floor everywhere.

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Modify Homes Corp in Calgary
Date/Time6/11/2014 at 11:08:44 AM

I would agree with the first post, but use a combo of both, Sand flat, fill voids with cement.

You also could add on (floor height warning) an additional substrate, hence making it level in the process.

Good Luck!

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Date/Time6/11/2014 at 5:45:09 PM

I have to agree with the first post regarding the cause.

I would not sand down the beam. By doing so you remove the strength that was called for in the building process.

I would use self leveling cement on the main floor. It might cost more, but if you install it properly you will have a great perfectly level floor.

Remember to install a mesh and follow the instructions.

Regards,

James Fram

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