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The IRP structure

IRP 360

The best insulation

THANKS TO ITS XPS INSULATION RENOWNED UNDER THE STYROFOAM BRAND.

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SINGLE-MATERIAL
An innovative single-material design that ensures a homogeneous structure, limiting thermal bridges and optimizing the vehicle’s overall insulation.
DURABILITY
Thanks to the use of polyester both inside and out, our motorhomes offer increased durability against the assaults of time and the environment.
ACOUSTIC COMFORT
The optimized design of the walls helps to reduce external noise, providing superior acoustic comfort on board.
CLEANING EASE
Polyester surfaces, smooth and non-porous, make daily cleaning and maintenance easier, keeping the vehicle always immaculate.

IRP… Challenger’s most important manufacturing secret lies behind these initials.

Whether the version is VIP or Premium, our unit structures are all made following the same high standard of quality. IRP guarantees excellence in manufacturing for optimal isolation, even greater resistance and reinforced protection.

A major innovation

Offer the best possible design for your peace of mind and the longevity of your motorhome.

XPS insulation:

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An extra-firm foam with high acoustic and thermal insulation.

Studied thicknesses of our floors and roofs

Allowing insulation beyond industry standards.

We are now convinced of the effectiveness of this manufacturing process aimed at always ensuring you more comfort and exemplary longevity of your motorhome.

That is why, more than words, we are making a concrete commitment that goes well beyond industry standards: all our motorhomes are now covered by a 7-year watertightness warranty subject to an annual inspection by an authorized member of the network.

foolproof

For better resistance, a reinforced structure

Protective polyester skin

Provides greater resistance to scratches, minor impacts, gravel, hydrocarbons, ultraviolet radiation and bad weather in general.

Extra-thick floor and roof,

among the best on the market, offering greater resistance to loads and limiting deformation over time.

Sturdy wood/composite combination,

reinforces the structure of our walls and floors by combining composite longevity with the exceptional sturdiness of solid wood.

A water-tight shield,

All materials in contact with the outside are rot-proof and resistant to moisture. Inside, the qualities of wood remain favored.

Note: Due to their particular shapes, the roofs and floors of our X, Slim Low Profiles, and Overcabs benefit from specific technology.

Grade 3 insulation

35 years of experience in protecting your motorhome

Against leaks

because of our rot-resistant materials and broad aluminum profiles that are glued and not drilled.

Against storms

because of the polyester covering that limits, for example, damage from hail (on the roof and walls) or salt (under the floor).

Against heat, cold and noise

thanks to polyester and a rarely equaled isolation thickness.

Our tests confirm it: our range of profile models (excluding S and X models), as well as our overcabs, are designed to withstand the harshest winters while limiting the effects of intense summer heat.