Thanks everyone for the warnings. Honestly I had not thought that could be possible so just in case I'll gear up with a mask to avoid inhaling any of it. I will still need to remove it, but from what I read the problem with asbestos is if you sand it and make it into breathable particles, so ripping it out should be ok. I've looked up in youtubr and there seems to be a tool called mastic remover that you can put on your floor sander and it would scratch the surface removing any of that stuff.

We had the same issue with yellow/green streaks in our refinished rimu floors. It's something to do with tannins in the wood - we found the only way around it was to replace the affected boards with reclaimed ones. But make sure the reclaimed ones don't have the same issue by sanding and checking before laying.

Hi Temika We do this successfully on renovations. You do need to be mindful that the concrete under a copper washer are thick. Most floors can be matched successfully without over laying.

We recently installed a stair runner that we love but we really want to re-stain the floors to a much lighter color. This raises the following questions. Please help if you know!! Can we remove the runner stain the stairs and then reinstall the runner? If not, Could we sand/stain/poly around the runner without ruining the runner? Does it looks really bad if the stair treads are dark brown and the first floor is really light? Thanks in advance for chiming in!