I am going to insulate and drywall this shed and heat it with a small woodstove. I will use T111 siding on the outside and am thinking about maybe a metal roof but am unsure. The ceiling trusses for the most part will not have cross beams. I think I will probably put them for the first 4 feet in the front and put a small loft storage area in. I feel like I can build the frame, put up siding, and drywall no problem but am getting lost in some of the details. I checked with my township about building permits and won't need one because of the small square footage. Here are some of my concerns/questions.
I plan on building it on 6x6 pressure treated skids. I would just lay the skids on the ground but don't want the ground to shift from frost and crack my drywall up. I am considering putting these on cement piers that I pour inside of cardboard sonotubes below the frost line. I'm not sure how to attach the 6x6 skids to the piers. I don't know if I would lay the 6x6 skids on top or put a 6x6 vertically in the tube and attach that to the skid maybe with mending plates.
I want to insulate the floor. I am thinking that maybe I could build the floor on 2 x6 floor joists. Then put something like a furring strip 2 inches down in between the 2x6s and lay 2 inch rigid foam between them. Then lay the subfloor on top. Does this sound like an okay way to insulate the floor? Would I need to put something under the rigid foam or could it just be exposed underneath? I think I had read that mice will chew that rigid foam but then couldn't validate this anywhere.
To insulate the walls and ceiling (the roof will be unvented) I am looking for something with a degree of noise reduction. I'm not trying to sound proof this shed but I thought if possible I would insulate with something like Green Fiber that will reduce sound by 90%. Seemed better than fiberglass bats because of the mold resistance. It would be nice to be able to play some music without bothering anyone late at night. Then I was thinking that sound is just going to lost through the wall vents anyways so I don't know if it's worth it to worry about this unless there is a wall vent out there that won't just let noise escape.
I have read both that you need a moisture or vapor barrier and that you don't. Some people say you have to have it and some people say that it will trap more moisture. If I do need one I don't know anything about them.
I have had trouble getting pictures to work. I will post links.