I have a 75+ year-old cypress house in Southern Louisiana. It is pier and beam, with a 2 1/2' crawl space, which is open to the outside world. The house has hardwood floors, but no subfloor under that. (Yep, you got it, planks of cypress, laid across crossbeams.) The floors are beautiful, and I have zero plans to carpet. There are, however, a few places where I can see daylight under my house, at the right time of day, through thin gaps between the boards. During the winter, drafts come up frome those gaps. No insulation will make wood floors "warm," but I would like to fix the draft problem, and add some insulation under the floor of my house.
Most things I have read talk about putting some type of batting insulation (ugh) with covering up under the house. I was wondering if any of the spray-foam insulations out the (i.e. TigerFoam, or the like) would work. Or maybe those 4x8 sheets of foam insulation. Though I suspect, for what I need to do, the spray foam might be a lot easier.
Any comments would be welcome... particularly if anyone else that has had this problem has some knovel solutions...