The flexible “pop-up” material on our campers is a closely fitted tent like skin made of tough vinyl coated synthetic material, very much like a Zodiac inflatable boat. Four windows, each with bug screen, clear panel, and privacy panel, provide excellent light and ventilation, but are also completely weather tight to keep the rain out. Unlike the flexible portion built for many years after the company moved to California from Colorado, the newer Four Wheel Campers built since 2005 (or newer), no longer have the need for an exterior storm flap to keep rain out. The original design from the Seventies was studied and reverse engineered, and the new style is the best yet!
The exterior of the camper is sided with interlocking sheet aluminum panels, ensuring lightweight flexibility and exceptional durability. Since many Four Wheel users really do travel offroad, the concept of the flexible frame and siding makes long term durability realistic. For customers that might perfer a different style of camper siding, we now offer an option for smooth fiberglass siding on most camper models.
Only superior quality sealants are used to weatherproof the camper. Ten years ago, silicone caulk was quite common, but now no silicone is used for exterior applications. Modern hybrid and urethane sealants, such as the Silaprene developed for the automotive industry, have taken the place of products that deteriorate over a relatively short period of time.
European plastic windows are quite stylish and found on many upscale campers, but Four Wheel Campers prefers to use tempered glass in aluminum frames. Plastic windows can scratch very easily, and where many of our campers spend much of their quality time, it just isn’t a realistic consideration for owners to be buffing out scratches and re-applying protective films.