I have been trying to get started building my own little house. I bought the plans from here and actually got stared almost two years ago. Then, last spring, a tornado took everything out. Everything on my property was leveled and the family home I am living in was badly damaged. Fast forward to now, I haven't been able to get enough money up to start over from scratch. My Dad had a 35 foot RV and I started thinking, I could live in that just fine. It suffered some damage during the tornado but not a lot. Mostly the sky light covers were taken off and the air conditioning unit. It has water damage though. Still I would be starting out with a roof and external walls. I just have to repair the floor and walls, wire for normal electric, add heating and I am all set. Several family members are donating building materials so I will just have to buy a few things.
The walls are framed with 2 x 2 lumber and I am trying to decide if I should just replace what was water damaged with that size lumber or change to 2x4 framing. I would loose 4 inches of floor space with the 2x4's but could use standard insulation which is being given to me. If I use 2x2 I would use foam board in between the studs with spray foam around the edges to seal everything. Got the idea from youtube in a video labeled poor man's solution to spray foam insulating. Then use the standard insulation in the ceiling and floors. What would be best?
I am lucky to live out in the country with no building codes other than septic which I already have cover. I already had an existing one from my old mobile home I lost to fire. Wish my neighbors across the road had a septic system. Theirs just goes into the creek.Yuck.