How do you insulate a camper van?

To insulate a camper van, start by choosing the right materials, such as foam board, spray foam, or fiberglass insulation, depending on your budget and needs. Measure and cut the insulation to fit snugly between the van's walls, floor, and ceiling. Seal any gaps with weatherstripping or caulk to prevent air leaks. Finally, consider adding a vapor barrier to protect against moisture buildup, ensuring a comfortable and efficient living space.