A couple years ago we turned one of our rooms into an exercise room and put exercise mat flooring over our bamboo floor to protect it. However, now we are turning this into a baby room and just started moving stuff out. We were shocked to find that the exercise floor mats wrecked the bamboo floor: http://imgur.com/a/wl6Wk

A few questions if anyone can please help:

- Can this be refinished/repaired?
- What happened? Trapped moisture and created mold or mildew? Do I need to have someone look at it? Do I need to let it dry out before I move stuff in the room? It's not like it was humid in there or anything.
- A few of the bamboo tiles almost seemed raised along the edges, just a very little bit. Is that concerning?

An area rug will cover most of it up, it's just very frustrating that this happened and I want to fix or at least prevent any further damage.

Thanks!

Clean the floor using a little bleach with the water to dissolve the dirt and kill any mildew, one half cup per quart. Gently scrub with a sponge backed with nylon scrub pad. Use a damp towel to remove as much water from the surface as you go. Run the heating till it's dried, and also a fan to circulate air in the room. If this doesn't remove the stain s, you will need to sand off the surface to get to clean wood and re-finish. As long as the surface stays dry you will not have a mold problem. The floor may flatten as it dries. Covering wood flooring with a water-proof membrane can cause problems. Raised edges will wear more than a smooth floor. If it was pre-finished, the edges are protected by a micro-groove, so there should not be any splintering from things sliding across a square edge along the planks, which can splinter if it got banged up from furniture.

Or if you have extra planks get an installer to rip it out and replace the planks. Maybe you could buy more, that bamboo is generally very similar in construction.