My home is a ground-floor unit in a condominium. The floor is really quite cold and I'd like to do something about that. I saw in [another question](https://diy.stackexchange.com/questions/67/use-a-subfloor-for-a-finished-basement-floor) the suggestion to use Platon. Would I be able to put laminate on top of that? Or is there something else I should be using?

The floor is currently laminate, I'm not sure what's underneath but I suspect it's probably just the bare concrete, perhaps with a thin layer of foam, but I'm not really counting on it. Maybe laying down some thicker foam underneath would help?

**Update:**
Some more details. I live on the west coast of British Columbia, near Vancouver. I'd like to avoid installing anything that requires power to operate, so some sort of passive solution would be best. I could probably spend up to $10k on the project, but of course less is better. My unit is about 1000 sq ft.