ditchdoctor wrote:I have been seeing different types of wall or side wall construction. From just 3/4 plywood to 1/4 outside and 1/8 -1/4 inside with 3/4 foam inserts. Is one better than the other. Is there benefits to each.
Thanks
Steve Taskay
Tim C. wrote:Has anyone pre-fabbed side walls with ply/foam/ply?
You would have to have anticipated/incorporated your ceiling cross beam support attachment ahead of time, but would be easier to ensure foam/wood bonds were consistent and flat.
I'm just gathering info at this point for a spring build, but am interested in composite floor, wall built ahead, and ceiling in situ.
Andrew Herrick wrote:...Personally, I think a 3/4-inch solid plywood wall is the best DIY-friendly solution. No worries about hidden framing, water intrusion, air sealing, anything. It's much more beginner-friendly. You can put in a door, window, or hatch wherever you want. You gain - what - about 25 pounds per wall compared to the typical skeletonized sandwich? That's peanuts.
...I use continuous rigid exterior insulation, but that design is deceptively difficult. I think most home builders who want an insulated camper use 1/8-inch or 1/4-inch hardwood plywood skins laminated to 1-inch XPS foam. That's a pretty good design. Just use good glue.
Aguyfromohio wrote:...Next time I would build with any other technique instead, and use the simpler home-build approaches like solid 3/4 plywood, skeletonized plywood, or stick-built framing with skins and foam insulation added as you go.
absolutsnwbrdr wrote:I prefer the sandwich wall construction because it allows me to run wiring inside the walls.
Tim C. wrote:Hi Tony
Did you use a router to do the whole edge of the sides, leaving some meat around your jig saw cut holes for cross pieces? Just trying to make sense of the picture where you are using the jig saw? I would assume with this technique your floor went in first? The installation of the inside roof skin certainly looks easier, and you are not contorted inside fastening it.
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