EDITOR’S NOTE: The following is an excerpt of an article by Mark Quasius that was published by Family RVIng, the monthly magazine by FMCA. Click here to read the article in full.
Coach House, a family-owned business headquartered in Nokomis, Florida, has been creating distinctive Type B-plus motorhomes since 1985. More recently, a Type B model, the Arriva, has joined the lineup. With a motto of “Build it right. Build it to last,” the company’s employees take pride in being innovators in the RV industry.
The Platinum series of B-plus coaches has expanded to several models over the years. The Platinum and Platinum IV are built on the Ford E-450 cab chassis, the Platinum II on the Mercedes-Benz 3500 chassis, and the Platinum III on the Ford Transit chassis. For this review, we’ll focus on the latest Platinum IV floor plan, the 272-IV, a 27-foot unit with dual slideouts.
Typical recreational vehicle construction begins with a floor platform; walls are attached to it, and a roof structure is joined to the walls. Front and rear caps are added to finish off the unit. Instead, Coach House RVs feature a patented one-piece design, which eliminates the numerous connection points and reduces the potential for water leaks.
Coach House begins by molding a one-piece fiberglass shell. Experienced craftsmen lay the fiberglass by hand to ensure a consistent thickness, something that cannot be achieved with automatic chopper guns often used to apply fiberglass. The material is then reinforced with carbon fiber, which increases its strength while retaining a light weight. In fact, a typical Coach House shell weighs only 800 pounds.
The interior is completely insulated. The floor frame is composed of 4-inch channel aluminum, with 1½-inch structural aluminum tubing welded around the perimeter of the one-piece molded body. This helps to keep the structure strong in the event of a side-impact accident. Then, insulation is added to the body, and the floor is topped with a single piece of linoleum or textured flooring, creating a water-resistant enclosure.