How to insulate a Peugeot Expert from external temperatures.

The described procedure is also valid for the twin vans Citroen Jumpy and Toyota Proace. The goal is to create a barrier against heat, cold, and condensation, making the van more comfortable for work or for conversion into a camper. The main insulation material is bubble foil insulation. We can easily find it on Amazon: for example, the 1x10 meter roll costs 49.99 euros with free shipping and consists of a double layer of aluminum, combined with a sturdy bubble core that is lightweight, waterproof, vapor-proof, soundproof, and very durable. The basic principle is to create a continuous envelope around the cabin, eliminating thermal bridges and air leaks. We need to completely empty the van, dismantle the interior panels, and thoroughly clean with a degreasing cleaner. We look for all holes, gaps, and points where air can enter from the driver's cabin or from the outside and seal them with draft-proof sealant. We cut the insulation to size and glue it in place, creating a continuous layer without gaps. For additional soundproofing, we can lay down a layer of wood or a specific carpet for vans on top. The insulation must be firmly inserted into the cavities of the side walls, between the steel studs, filling every space. We pay special attention to the placement of screws and do not skimp on the quality of the glue. We carefully seal the door holes, adding extra sound-absorbing material to the panel for better soundproofing.