Insulating your van takes both time and money. You should select an insulation product that offers value while remaining eco-friendly; one which can withstand vibration from driving without producing condensation and rust.
Spray foam insulation can be an ideal choice for vans. It acts as a moisture barrier while preventing thermal bridging. Furthermore, its R-value makes it highly energy-efficient.
Fiberglass
Foam board insulation with a high R-value is an ideal choice for van insulation, although other forms may also work, including recycled denim, fiberglass and acoustic insulation. All three materials can be cut and shaped as necessary, plus absorb moisture which prevents condensation on metal walls.
Breathable insulation is ideal for vans because it manages moisture while allowing airflow, and prevents condensation that damages metal. A vapor barrier such as Lizard Skin or Great Stuff spray foam helps mitigate this issue; however, due to its slow curing time we recommend only using it in small cavities and gaps such as those around doors and windows.
R-value
Vans are small spaces, making each inch of insulation essential. When selecting insulation materials, it’s essential to take note of their R-value – an indicator of an insulation material’s insulating power; the higher its R-value is, the more insulating power it possesses.
The ideal van insulation consists of materials that offer resistance to heat flow while attenuating vibrations caused by road travel, providing for a quieter interior environment. Furthermore, moisture-resistant materials help extend your camper’s lifespan and protect its contents against mold damage.
Reflectix insulation is a popular choice and easy to install; available at most hardware stores. However, its R-value of only about 1.1 per inch makes it ineffective as an insulator and also retains moisture. Foam board or Rockwool may provide better alternatives; both have reduced environmental impacts as they do not attract moisture, plus their R-values surpass fiberglass batts’ R-values.
Reflective window coverings
Insulating van windows involves various solutions, from curtains and covers to blinds and shades. However, the optimal choice depends on both your environment and personal requirements; in warm environments you should look for solutions which block sunlight while reflecting heat back into the vehicle; in colder places more substantial window coverings may provide needed insulation.
No matter your level of experience with vanlife or travel, insulated window covers can make your space cozy and warm year round. DIY projects like this one provide privacy from sunlight glare while thermal insulation will protect against freezing temperatures during winter vanlife adventures.
For an insulated van window cover, you will require Reflectix material, fabric, a stapler or sewing machine, and either fabric or duct tape – or both! – as you wrap them. Cut your Reflectix slightly larger than your window size to ensure proper wrapping with fabric before sewing or stapling close. Or try duct tape instead!
Thermal break
Finding the appropriate insulation can make a dramatic difference when it comes to keeping your van cool. There are various solutions available to you for accomplishing this goal, such as sheep wool insulation and foam board insulation. Sheep wool is an organic choice that resists mold and mildew while offering great R-value per square inch; foam board insulation on the other hand offers more cost-effectiveness.
Thermal bridges in your van should be avoided to protect its internal temperature. Examples include exposed metal or windows/fan. To reduce their effect on heat transfer, cover thermal bridges with Reflectix reflective foil which reduces heat transfer rates.
Polyurethane spray foam insulation can also be a great addition to your van. When installed professionally, this insulation protects your metal from moisture while being impermeable – meaning no moisture enters to cause condensation! Unfortunately this form of insulation can be more expensive than others and often requires special spray gun equipment for installation.