Dark shadowy spots appearing in wood floor

Q: I have engineered hardwood floors (Robbins) which are about 20 yrs old. We have dark spots on the floor. They kind of look like shadows. We were told it’s moisture coming through the cement slab. We were told that we could try refinishing them in a dark stain to hide them. But, I am wondering, will the floor be rotting and should I be concerned about mold?

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Filling up a warped spot in subfloor

Q: I have older 2″ wide flooring on 1 x 6 sub flooring running diagonally on joists on a 2nd story. In one area, where a HVAC duct runs between joists, the sub floor has warped and dried out leaving a void in between the two. You can feel a soft spot when walking over it.

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Black discolorations in tongue and groove

Q: I professionally installed a engineered maple floor on cement slab, which was tested for moisture before laying. The floor showed no signs of green or dark wood in the tongue and groove. Six month later I pulled down from my attic, (no leaks) my 2 open left over planks and 2 new boxes of maple flooring wrapped in it’s original plastic to repair 15 spots throughout my home that have black discolorations. The old and new flooring was very black in the tongue and groove.

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New floor installed after minor flooding is making cracking noises

Q: We experienced minor flooding in our home due to a bathroom faucet and incompetent plumber. We had to remove and replace the Bruce hardwood flooring on the first level. We used the same prefinished Bruce hardwood flooring as previously (different installer) and noticed that right after this installation, the wood makes cracking noises when walking across it in certain areas/rooms and not others. We had the subfloor screwed down throughout prior to wood placement so we know it’s not the subfloor. Now, we’re worried about whether or not it was properly installed.

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Socks black from hardwood floor

Q: My daughter bought a house with wood floors and the finish comes off on your shoes or feet. I have not been there to see it but do you know or have any idea what it is? It’s blackish.

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Scratch repair area is now lighter than rest of floor

Q: I had a scratch on my old hardwood floors (1950’s house, original oak floors). I tried to sand down to get the scratch out. I got below the poly and the floor is now the light color of the original wood. Is there a way to get the area a little darker to get a little closer to the color of the surrounding floor? There is no stain on the floor, just natural color.

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Are dips in an old floor of special concern?

Q: I have a house we recently bought. It’s older built in 1920 and some of the flooring has dips. It’s not horrible, but what could cause this? Is it something that should be addressed immediately?

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Replacing the middle of a damaged floor

Q: I recently put down Acacia Pryzm Armstrong flooring for my neighbors. Their kitchen got flooded and all the flooring in the kitchen and part of the dining buckled up and now smells like mildew. My question is – without removing the whole entire flooring can just that area be replaced? It’s locked in together but I’m not sure how to put pieces back in without removing the whole floor. I really don’t want to do that so I’m hoping you might have a solution.

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