Satellite Suites restroom trailers are manufactured using waterproof materials inside and out in order to prevent damage and odors caused by moisture seeping into the framework. They are made with aluminum framing, bonded together with high-density foam insulation and covered with a seamless gel coat exterior. This process produces a strong, consistent, lightweight structure that will not rot, warp or degrade over time, according to the maker. Because the structure is wood-free, it is resistant to moisture, mold, and mildew. Over Armor roof skin is a composite blend that is not damaged by ultraviolet rays. This material will not expand and contract in extreme temperatures, and is virtually puncture-proof. 574/350-2152; www.satelliterestroomtrailers.com.