A van conversion lives or dies on the insulation you cannot see - and in a metal van, the enemy is condensation behind the walls plus the fact that every inch of thickness is interior space you lose. Closed-cell spray foam answers both: it delivers real R in a thin layer and seals the ribbed metal so moisture cannot form behind the finish.
Why van builders choose closed-cell
- Thin profile: high R-per-inch means you insulate without stealing the narrow interior width.
- Seals the ribs: foam follows the van's channels and curves with no voids - the exact places batt traps moisture and rusts the body.
- Vibration-proof: it bonds and stays put on a vehicle that is always moving.
Do it before the build-out
The time to spray a van is before the walls, cabinets and bed go in. A sealed, insulated shell is the foundation a four-season conversion is built on.
Get a free quote for your conversion. See the vehicle hub.