Is it worthwhile to insulate underneath the floor of a cabin that's built on post and beams? ??? Or would skirting be more appropriate ???
Depends. I'm going to insulate mine. If you don't insulate the floor you should insulate the skirting to create a conditioned crawl space. If you're not using A/C then it's not important unless you have a real cold climate.
Yep... "depends".
Unless the climate was mild I'd think it well worth insulating. And it depends on how, when and how often the structure is being used.
I'm insulating mine by putting 1" T&G 150 psi rigid foam over my subfloor then 5/8" plywood over that. I put a double bottom plate in to accommodate this.
I put a pressure treated subfloor in because I built the foundation and first floor deck last fall then started back up this spring. I also wanted to make sure the crawl space moisture didn't rot my floor from underneath. I don't, however, want the PT wood exposed to the inside and my insulation method will take care of that. It's also critter proof.
Jerry
I am new and interested in the value of the rigid t&G foam over the subfloor. I am doing a 14x24ft addition to the rear of my house. 12'x12' was an old patio, I removed the patio slate, that leaves a sand filled base. I didn't want to hammer out the stone wall and remove all the sand. Also it holds up the balance of the patio which is being left in place. I don't know how to insulate this area. The rest of the building has a crawl space of 2 1/2 to 3 1/2 ft. Maybe the best thing would be for me to do the t&g rigid form board over the whole thing. I have pressue treated 2x12 floor joists. Will that work? or is there some other insulation that I could use in that old patio area. I'm placing black vapor barrier on the whole ground, including the old patio.
So, if I'm hearing everyone correctly, if I only use the camp sporadically, (8-10 ) times a yr, it's not worth it to insulate, but skirting may be better.
I think that would be a good conclusion. I am currently working on a house where the rodents - critters have had their way with the insulation - so the skirting would be of more use if not there often and you don't want to rodent proof the insulation.