to the forum geomahon,
The 2012 Hideout (both, east & west models) are shown as a "Walkable Crowned Roof", although a rear ladder (& ladder backer/reinforcement) not available on the 19FLB (19FLBWE).
East Brochure (pg 8 & 12)
http://www.keystonerv.com/media/2464...t_brochure.pdf
West Brochure (pg 8 & 12)
http://www.keystonerv.com/media/3238...n_Brochure.pdf
Hope this helps,
Terri, the Chevy co-pilot