Every Casita Travel Trailer includes a high-density polypropylene closed-cell foam insulation layer in addition to our fiberglass composite structure. This advanced material provides a high strength-to-weight ratio while delivering excellent thermal resistance across a broad temperature range, helping maintain comfortable interior temperatures in both hot and cold climates.
The closed-cell composition minimizes moisture absorption, helping prevent condensation buildup and preserving insulating performance in humid, wet, or freezing environments.
Polypropylene foam also offers inherent vapor resistance and structural stability, reducing thermal bridging and supporting consistent thermal performance over time.
In addition to thermal efficiency, the foam contributes to acoustic dampening and vibration reduction, enhancing overall cabin comfort.
On the 24′ Discovery model, the underbelly is fully enclosed and heated, providing added protection for tanks and plumbing in colder conditions.
Combined with Casita’s insulated composite flooring system, this design further enhances thermal performance and helps maintain interior comfort across a wider range of seasonal environments.
The result is a lightweight, durable insulation system engineered to support reliable, four-season comfort in a wide variety of weather conditions.
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