Thermal Insulation Sheet The right solution for professionals The Armaflex Home Thermal Insulation Sheet is a versatile, closed-cell elastomeric foam solution for temperature control and moisture protection. Available in four thicknesses to suit your project requirements — each roll is sized to provide practical coverage for van conversions, campervan builds, and general thermal insulation applications. 10mm (10m² per roll) — Ideal for warmer climates and summer use, providing an effective barrier against radiant heat. The generous 10m² coverage makes it well-suited for full van floor, wall, and ceiling coverage in a single roll. 19mm (6m²per roll) — A mid-range thickness offering enhanced thermal performance for year-round use, balancing insulation depth with coverage area. 25mm (4m² per roll) — Recommended for colder climates and winter builds where greater thermal resistance is required. Best applied to walls and ceilings where space allows. 32mm (3m²per roll) — Maximum thickness for the highest level of thermal insulation. Ideal for extreme cold environments or where superior energy retention is the priority. For a standard van conversion, we advise ordering between 3 to 5 rolls depending on your vehicle size, wheelbase, and chosen thickness to ensure full coverage of the floor, walls, and ceiling. Product Features: Specially designed to install with ArmaFlex: Flexible and easy to manipulate around van ribs, wheel arches, and awkward corners. Reliable installation: Provides a consistent thermal break that prevents cold bridging and reduces the risk of interstitial condensation. Optimal performance: Lightweight yet durable, ensuring excellent thermal efficiency without adding significant weight to your vehicle. Complete system compatibility: Works seamlessly with ArmaComfort acoustic barrier and specialised adhesives for a full-system thermal and acoustic van conversion.