foam/membrane over field stone foundation
I recently bought a house that had a remodeled basement, but had water issues, so I had to rip out everything. I now want to do it right, and so I have a few questions:
- My current plan is to put delta FL membrane over the field stone foundation and spray it 2 inch with closed cell sprayfoam. This would avoid that the foam directly touches the foundation wall. I also want to install a french drain and have the FL membrane go into the drain. Is this a good plan? I tried it on a small section behind the new modcon boiler I installed, and it seems to work great. My biggest concern is whether it is ok for the field stone foundation to be moist in the long run - do I need to have the field stone foundation dry to the inside, or will it be ok in the long run to seal it off?
- I can not figure out what flooring would be ok. With the french drain there should not be too much water, but dew point etc. is of course always a problem. One constraint is that the floor hight is not great, so it should as little height as possible. I was excited about porcelain tile, but that seems very expensive since the floor is not particularily flat and a mud job would be required. I was hoping to just slightly level it, maybe put on garage epoxy or so. In the kid play space I was considering foam carpet tiles. Does that create moisture problems?
Thanks in advance,