Tell me where the structural integrity is-

[AC7880]

I found this link (at bottom) on how this coach is built - fairly unique.

Upsides - reinforced Spartan Chassis, and excellent insulation R values.
Downside - not a bus shell. Any 4 slide coach from any builder does not seem like the overall shell could be strong? All those open spaces with slide out rooms weakening the integrity of the overall coach?

Apparently original design type was lifted from Newmar (hung wall construction vs laminated walls), then taken over to Travel Supreme who had a good rep, but did have some random windshields popping out when the coach was leveled (until reinforcing cross bracing was installed by owners and recalls). Entegra (under Jayco) took the Travel Supreme and modified it to this build type in the link below.

I wonder how this build method holds up over time when compared to the laminated side walls most Class As are using? David - any engineering viewpoint on the methods vs laminated?

Safe link to see how they build them: http://www.rvcruzer.com/2012_anthem.php