DuraFrame by National RV

The Duraframe®
Chassis System

A Sea Breeze motorhome is a fully engineered system.

Example
Total Engineering

The strength of the Duraframe® Chassis System provides rigidity to the coach body, which leads to the tighter fit of the interior cabinetry, which in turn results in fewer gaps between the cabinetry and sidewall, eliminating the use of gimp molding to hide such gaps.

   The Duraframe® Chassis System is a marriage of National RV's patented Duraframe® technology and select motorhome chassis from leading manufacturers.
   The Duraframe® Chassis System is specifically engineered to provide the optimum performance, strength, durability, ride quality and basement storage possible
   Rigidly fabricated of welded tube and sheet steel, the Duraframe® Chassis System provides all of the coach strength necessary to carry the load over the long haul.   Other manufacturers rely on placing stresses on the coach body-the sidewalls, roof and floor.   This can lead to squeaks and rattles as well as overall loosening and weakening of the coach's structural integrity.   In a Sea Breeze motorhome, the Duraframe® Chassis System bears these stresses, allowing the coach body and all of its components to remain as tight and quiet as possible.

RIGID MOUNTED COMPONENTS
Basement-mounted components such as the LPG tank, batteries and holding tanks are rigidly anchored in the cold hard steel of the Duraframe® Chassis System.

ALL STEEL BULKHEAD
Combined with the tubular steel cage--like frames of the sidewalls and roof, the driver and passenger are surrounded by a safety barrier of cold hard steel. Compare to competitor's wooden front bulkheads and aluminum framed walls and roof.

5,000 LB. TOW HITCH
Sea Breeze's Class lll hitch is anchored directly to the all-steel Duraframe® Chassis System structure.

SHEET STEEL OUTRIGGERS
The Duraframe® Chassis System uses rigid sheet steel outriggers to provide uniform coach support from the center to the edges. A truss style arrangement of outriggers and other steel members provides unmatched strength and rigidity to the overall motorhome.

FLUSH FLOOR SLIDE MECHANISM
Flush floor technology provides residential livability. Precise rack and pinion slide mechanisms are attached directly to the Duraframe for superior support.

TUBULAR STEEL RISERS
Thick Walled tubular steel risers lift the coach floor above the chassis rails to provide deep storage bays with pass-through versatility.

TUBULAR STEEL FRAME
Stronger and less susceptible to work fatigue than aluminum and won't decay like wood.

CROWNED ROOF
The best RV roof in the business is built with welded tubular steel rafters. The crowned roof has radius edges for superior runoff.

FIBERGLASS ROOF SKIN
A seamless barrier against moisture; more durable and easier to maintain and repair than rubber or aluminum.

1/4" STRUCTURE-WOOD®
This oriented strand board (OSB) from Weyerhaeuser carries a 25 year warranty and is used for both the roof deck and interior ceiling panel.

HIGH GLOSS GELCOAT EXTERIOR
Exterior sidewall surface is made of a high gloss fiberglass gelcoat that is molded into a luan backing then vacuum laminated to the sidewall structure. The result is excellent resistance to delamination and long-lasting great looks.

1/4" THICK MAHOGANY PLYWOOD (LUAN) INTERIOR WALL PANEL
A thick, firm interior wall surface that's tough enough to anchor our cabinetry...and whatever pictures or fixtures you care to hang, wherever you want to hang them. Competitors' thin walls "give" when you push them, revealing their weakness beneath the surface, with reinforcements built in only where necessary to attach cabinets. Our walls are thick and rigid throughout!

A BETTER WAY TO MOUNT A SIDEWALL
The National RV sidewall is placed on top of the steel floor framework. Some manufacturers use screws to fasten the sidewall horizontally to the edge of the floor. This places the fastening screws under an enormous amount of shear force, and the sidewall--and everthing above it, such as the roof--is literally being held up by a few small screws! With National RV method, the weight of the sidewall rests on the steel framewok of the floor. Which would you prefer?

COLD HARD STEEL

From the Duraframe® Chassis System to steel framed coach body, National RV uses steel for EVERY structural component of the motorhome. Other manu-facturers may use aluminum or wood in the same places, but none carry the strength and durability characteristics of cold hard steel.

EPS BLOCK FOAM INSULATION
Used throughout the coach in every laminated coach body component. Won't settle or sag like spun fiberglass insulation. Insulation is up to 6" thick in the roof, and completely surrounds the coach living areas--it's even in the floor.