Wood floor cupping problem
skuba
7 years ago
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Help: wood is cupped is it installer problem?
Comments (9)Tad it isn't recommended to put a vapor barrier between the floor and subfloor in a crawlspace installation. Reason being is if there is humidity beneath the crawlspace then the subfloor is going to expand and move the wood floor in a panelized effect anyway. The vapor barrier should go on top of the ground under the crawlspace. It should cover 100% and it should be black plastic not clear. Black plastic keeps any vegetation from growing under the barrier. Get that covered and keep running the dehum unit until it is bone dry under there. Only after it is dry and you've given the wood floor 2-3 months to relax can you attempt a fix. Anything prior to that and you could cause additional problems. Call me if you want to go over it. Sam at Real Wood Floors 877.215.1831...See MoreFloors cupping, still a problem. Help please!
Comments (2)It takes several months and the wood still may never "relax". But you can't jump in and sand until all the excess moisture is gone from the floors. Keep checking with a meter is all you do at this point. Someone needs to be checking the MC on the bottom side of the subfloor and also the joist. Is there any thick plastic covering the soil?...See MoreCupping wood floors
Comments (4)There obviously is a moisture problem and a difference in the relative humidity levels above and below the wood planks. I have been working to convince the trustees of a church to rip out their 80 year old floor and properly prepare the slab underneath and install new. Their oak strip floor cups whenever it rains. However, sometimes people are like horses...you can lead them to water, but you can't make them drink. A floor such as the one here may be alright if resanded, but probably not. Although I have never had moisture compromised floor planks 'crown' after refinishing...I have seen it and that is a possibility. Doesn't look worse than cupping though; at least it feels smoother when walked on....See MoreHow to properly install wood floors-Cupping concerns
Comments (8)If, they nail it, yes, the plastic will be compromised. No point in adding it, then. Method 1: (2 1/4" total build up) If, plastic will be used for vapor barrier. Grind and levl slab, lay plastic onto floor and up the wall 6-8", float two layers of 3/4" advantech over the plastic: glued and screwed 1 1/4". Then glue and nail assist the 6" live sawn oak. Alllow 3/4" of expansion gaps all around: 1/2" under dry wall and 1/4" under base boards. Trim plastic. Method 2: (3/4" total build up) If, you don't want the extra height. Grind and level the slab, Gaps, cracks and corners should be caulked, apply 2-3 coats of epoxy primer (Sikabond or Pallman) onto flooring and up 3" of base of walls. Then using a glue rated for 6" or wider solid flooring and glue the "live sawn" down. Allowing 3/4" expansion gaps Your only issues will be moisture from above. Climate control will still be needed....See MoreUser
7 years agolast modified: 7 years agoCharles Ross Homes
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7 years agoklem1
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7 years agoMrs. S
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7 years agolast modified: 7 years agoVith
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