These snaps were taken about a week ago. D K chose this stuff called Medex for the subfloor. The plans call for knotty pine tongue & groove flooring installed without a subfloor. We chose a sustainably harvested, non toxic cork flooring so a subfloor is necessary.Medex is a MDF (medium density fiberboard) that does not contain formaldehyde, a carcinogen that's in the glues that hold most types of fiberboard together. It makes a very fine dust when sawed that made my eyelids puff up, so I'll try to steer clear of the dust, but it's super tough and seems otherwise safe. We got it from Edensaw Woods.
We used razor blades to trim the spray foam that expanded past the floor surface after a couple hours. But we wanted to allow a full 24 hours for it to cure and out gas just in case, so we measured and cut the medex and called it a day.
The next step was to apply an extra layer of protection in the form of a vapor barrier called tutuf, held in place with Mean Green adhesive, I dare the cold to get in! :) Tutuf can be purchased at nontoxic.com.
After marking all the studs, D K screwed down the medex, and we have a solid floor.
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