Wood Flooring Expansion Repair


  #1  
Old 11-18-08, 10:40 AM
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Wood Flooring Expansion Repair

We had installed hardwood (prefinished) floors last december. The floors were fine all winter and summer. Well about two weeks, i noticed that the floors expanded so much that the floors have risen approx 5 inches off the ground and it looks like a hill in the room. Its weird because we had installed plywood underneath as there was only concrete slab when we took off the carpet. Its for our living room so its not like there is an issue of water from a basement. Additionally, it looks like that the plywood under the hardwood floor has also risen because when i step on the hill, it is still firm and the wood does not crack. Its about 75sq ft worth of damage next to the wall. We did also have the moisutre barrier underlayment between the plywood and the hardwood floor.

Can anyone:
1)tell me why this happened?
2) how do i repair it?

Thanks in advance for your help!
 
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Old 11-18-08, 03:38 PM
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s this a tongue and groove or Laminate? The 1st thing to mind is moisture .
When you installed the plywood over the concrete did you leave the correct gap between each sheet and attach them properly to the concrete ? Heres some good tips that may help you track down the problem.

Hardwood Floor Installation Over Concrete
 
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Old 11-18-08, 04:48 PM
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Did you do a moisture test of the concrete? Did you acclimate the flooring before installation? Did you leave expansion gap? Is there a problem with moisture penetration along the wall? Is this an above grade installation? Is this solid 3/4" hardwood flooring?

You say you installed vapor retarder. What kind? Did you apply mastic to concrete beneath vapor retarder?

Hardwood Floor Installation Over Concrete
 
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Old 11-23-08, 06:25 PM
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Your floor buckled because it gained moisture(Leak, humidity, dew points/condensation, concrete moisture vapors, improper moisture barrier installation, bad drainage, sprinkler systems, busted pipe in the slab). Moisture causes wood to swell.

Does the rest of the flooring have a cupped/washboard appearence?
 
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Old 11-23-08, 06:25 PM
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Your floor buckled because it gained moisture(Leak, humidity, dew points/condensation, concrete moisture vapors, improper moisture barrier installation, bad drainage, sprinkler systems, busted pipe in the slab). Moisture causes wood to swell.

Does the rest of the flooring have a cupped/washboard appearence?
 
  #6  
Old 04-13-09, 11:35 AM
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Buckled Floor

We had a solid oak floor installed a month ago, the builder glued each plank to the existing concrete floor & glued the planks together. Everything was fine until last week when we noticed a slight bump which has now become more like a hill.

Is there anyway this can be fixed or do we have to remove the floor completely -

Regards


Adam Wright
 
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Old 04-13-09, 08:38 PM
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Most likely you have a moisture problem in your slab. Could be a leak or there could have had a problem previous to this and it was never tested for.
 
 

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