Insulation works both ways, Live in the Florida heat and travel to the cold north
Thinsulate SM600L is on order from eBay,
Four years later: It was worth the investment, from desert camping to snow skiing..
Thinsulate will be used in the walls, ceiling, and doors.
https://www.ebay.com/itm/131754566187
Floor insulation - 4 layers
| # | Material | Thickness | R-Value |
|---|---|---|---|
| 1 | Perfection Floor Tile | 5 mm | ~.5 |
| 2 | Baltic Birch | 1/2" | ~1 |
| 3 | 1/2 " R-Matte | 1/2" | 3.5 |
| 4 | Thermopoly sheathing | 1/8" | ~.5 |
Building an insulated floor
Build floor one layer at a time from the bottom layer up. The result is a floating floor that can be disassembled as necessary for construction, repair, and maintenance. Depending on your needs you can go with more insulation to deal with extreme conditions.
Cover the entire floor with red rosin paper, cut-out floor footprint
Transfer the footprint to the thermoply sheathing layer. This layer can be cutout with tin-snips or heavy-duty scissors.
The thermoply is a thin water and insulation barrier that can adapt to the ridges and valleys of the van floor.
Closeup of the R-Matt insulation. The tradeoff in height lost versus insulation is critical at this point.
Using a jigsaw, cut out each section of insulation to match the template.
Transfer the footprint to the baltic birch layer. Note that each layer is made from 4’x8’ sheets, yet each sheet is cut with a different offset increase strength, i.e., don’t perfectly overlap the layers.
Finally a 1/8" by 1/2" slot is cut in the side of each section for insertion of a 1" aluminum spline. This will add strength to the seams of flooring sections. A demonstration is shown.
Door insulation
YouTube