This is starting to drive me mad as there's no "right" way of doing anything. I'm super sensitive to chemicals so I'm building this in part to have a chemical free space. I bought an all aluminum trailer but need to pull the particle board that's currently in it and replacing it with something chemical free. I was thinking 1/4 aluminum diamond plate but I will need 6-7 sheets and it's $300+ per sheet. So that leaves me with a tongue and groove pine and a thinner diamond plate over that. In this case I would also need a flashing under the pine to keep it safe from the elements and such. So do I just put down an underbelly and then insulation in the frame spaces, then the pine, then the aluminum on top of that? This is what I'm sort of thinking starting with the underside:
1) Rigid board insulation (four inches) to fill the "stud cavities", I would add two bands of aluminum angle the long way to keep it firmly in place.
2) After setting the insulation in place an aluminum flashing on the inside of the trailer.
3) Tongue and groove pine on top of this.
4) A thinner diamond plate aluminum floor.
Do you see any flaws here? Any better all natural type options? Do you think the exposed rigid board foam would be fine on the under side dealing with the elements and road conditions?
It's either that or the same thing without the flashing and a much thicker diamond plate though I'm not sure what I would need to support the weight on the inside with 24" spacing on the cross supports.
1) Rigid board insulation (four inches) to fill the "stud cavities", I would add two bands of aluminum angle the long way to keep it firmly in place.
2) After setting the insulation in place an aluminum flashing on the inside of the trailer.
3) Tongue and groove pine on top of this.
4) A thinner diamond plate aluminum floor.
Do you see any flaws here? Any better all natural type options? Do you think the exposed rigid board foam would be fine on the under side dealing with the elements and road conditions?
It's either that or the same thing without the flashing and a much thicker diamond plate though I'm not sure what I would need to support the weight on the inside with 24" spacing on the cross supports.