Fiberglass insulation and a layer of radiant foil insulation cover the roof. Grand Design goes further by extending both insulation layers the full length of the roof and around to the bottom of the front cap. To maximize the effectiveness of the insulation, a vented attic allows condensation to escape the roof structure.
Sidewalls, rear wall, slideroom endwalls and slideroom roof are all welded aluminum framed and laminated with rigid foam insulation. Many others use wood framing and soft fiberglass insulation in the rear wall and sliderooms that can settle over time and leave uninsulated air gaps.
The underbelly is lined with a radiant foil insulation barrier (Layer 1) and then covered with fiberglass insulation (Layer 2). The main floor enhances the R-Value with yet another layer of fiberglass insulation (Layer 3). (R-30 Main Floor - S-Class)
Rigid aluminum rails are fastened around the perimeter of the underbelly to keep the corrugated barrier up tight against the frame for a better seal from the elements.
Fiberglass insulation under the gooseneck is a place often forgotten by others.
Rigid Foam insulation lines the inside of our heavy duty baggage doors.
A high performance furnace and fireplace combine to deliver the heat.
Dedicated heat ducts run to both the underbelly and storage bay. 12-volt heat pads on each holding tank, and the enclosed utility center with low point drains, provides functional water systems even in extreme cold.
Vertically mounted heat vents integrated into the cabinet bases, push hot air from front to back (rather than straight up). This also means that there are no heat vents in the middle of the main floor to collect dirt and debris, and that can be broken easily.
Solitude's design has been put to the test in extreme temperatures ranging from ZERO to 100+ degrees. Third party testing showed that the Solitude remained full functional and reained comfortable temperatures throughout the coach.
Every Grand Design RV is backed with a class leading 3-year limited structural warranty. By selecting suppliers with similar philosophies, many components used on our coaches also carry an extended warranty through the component manufacturer.
101" Wide Body Chassis - A full 5” wider than many coaches in its class, the widebody chassis allows for more livable floor space with deeper sliderooms, wider sofas in rear lounge models, and space saving sliding pocket doors into the bathrooms…all at a shorter towing length.
Wide Rail Design - Heavy duty I-beam main rails are placed further outward on the chassis. This wider rail placement provides a more stable jack stance, and allows for the slideroom gearpacks to be enclosed inside the frame rails (rather than outside).
Our Stealth A/C System provides dual 15,000 BTU units.
Cool air is strategically guided through the ducts and forced out of the vents for maximum cooling efficiency.
True Racetrack Ducting extends past each A/C unit to allow for uninterrupted airflow from the front to the back of the coach. Regardless of which A/C is running, cool air is being circulated throughout the coach.
Typical Ducting provides partial airflow with very low cooling efficiency.