Can a cupped hardwood floor be saved?
Sometimes. Boards that have cupped from a short exposure and have dried can recover their shape, while boards that were wet for a long time or have swelled at the joints often do not.
Cupping is the boards swelling more on one face than on the other, and it often reverses as the wood dries. The recovery depends on how long the water sat, how thick the boards are and whether the subfloor has moved. A floor that has been dried quickly often flattens over several weeks, while a floor that stayed wet for days may keep a permanent curve.
The sanding and refinishing decision is made after the floor has been dried and has rested. Sanding too early can remove the surface before the boards have settled, and that cannot be undone.
Why does carpet stay damp after it looks dry?
Because the water sits in the pad, and the pad holds far more moisture than the carpet fibers. The surface can feel dry while the middle of the pad is still wet.
Carpet pad is a foam or felt layer that absorbs water like a sponge, and it does not release the water quickly to the air. A carpet that has been extracted on top can still be wet underneath, and the moisture spreads to the subfloor and the wall edge over several days.
A moisture reading under the carpet, at the wall and at the center of the room, shows the real state of the floor. The pad is removed if it reads wet, and the carpet is kept only if it can be dried and reinstalled without a smell.
Should a floor be replaced or repaired after a leak?
That depends on the material, the readings and the cost of the repair against the replacement. The decision is made with the homeowner after the floor has been read.
Solid wood that dries flat can be sanded and finished, and the repair is often less than a full replacement. Laminate and engineered flooring that has swollen at the seams are generally replaced, because the joints do not close again and the swelling does not recover.
A floor that was wet for a long time over a subfloor that has rotted is replaced from the subfloor up, and the cause of the rot is noted for the homeowner. The repair cannot be finished until the subfloor is sound.
What should the homeowner keep for the insurer?
The photographs of the floor before and after, the readings, the list of removed material and the flooring invoice. The insurer will often ask for the removed material to be kept until it has inspected it.
Take photographs of each floor area before any material is lifted, and keep the lifted pieces until the insurer confirms they can go. The Colorado Division of Insurance regulates insurers in Colorado and takes complaints about claims, so the record should be kept in a form that can be shown to it.
A floor claim is judged on the cause and on the condition of the material. Keep the flooring samples and the product name, so a matching replacement can be sourced if one is needed.