TheSkoolieLife.com Episode 31:
Adding insulation and a ply-
wood subfloor to my skoolie
The existing floor on the bus is a layer of hardened rubber glued
onto sheet metal. Because the bus is from Georgia, there is no
rust on the floor, and no need to take up the rubber. But a lot of
heat and cold is transmitted through that floor. So I’m adding a
half-inch layer of rigid fiberglass insulation covered with ⅝” thick
plywood. Because there is so much construction still ahead, I
won’t soon be putting a finished floor over this subfloor.
While the job is pretty straightforward, there are some details to
attend to. When I unbolted the 22 benches from the floor early
on, it left dozens of holes that needed to be covered up.
I’m painting all bare wood with a primer designed to resist mould
and mildew. I don’t want an accidental liquid spill to cause that
stuff to grow under the sub-floor, after cabinets are installed and
it’s too late to lift up the floor.
I’m putting furring strips around the perimeter to have
something to screw the plywood to. I’ve worked out ways to
minimize the number screws that go right through the metal
floor, as they can conduct cold up to the screw head, where
condensation can lead to mould.
And there is a panel in the floor that allows access to the fuel
tank, in case the fuel gauge sensor needs maintenance. Bad idea
to make that inaccessible. So I framed around it to create a
removable plywood hatch.
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