Since I'm the only class B owner on the RV forum

I will continue this epistle.
I have now installed my awning and Fantastic Vent on the Sportsmobile penthouse top.
I have been on a Sportsmobile forum but evidentially none of its members have done what I wanted to do. They are mainly into trick suspensions and off road driving.
Sportsmobile installed awnings are attached to the drip rail and then some screws into the van side sheet metal. The awning brackets must raise the awning up so that it clears the side doors when deployed. The sheet metal tends to develop cracks at the screw attachments from this cantilevered awning load over time. I finally decided to attach my awning to the SMB penthouse top. I used every other hole in my new white awning rail and backed up the #6 machine screws with fender washers and acorn nuts. See attached photos of awning installed and deployed.
We set the awning up and then raise the penthouse roof. To take the awning down we must lower the roof first.
Oh yes, I found a roof raising assist method! The penthouse roof is spring loaded. You have to push up from a crotched position to start raising it. (When it is down it wants to stay down and when it is up it wants to stay up). After it is about 1/3 of the way up and you have to hold onto the it as the spring load now wants to pop it up and hold it up. Trying to push up while bent over is not a trivial task. So, instead of opening doors to let air in as you raise the top.....close the camper up tight....run the van engine and turn the van blower to outside air and put it on HIGH. Now with the van internal positive pressure the penthouse roof goes up real easy!!
Sportsmobile
does not recommend installing a fan in the roof. Oh well. The main roof structure is five strips of fore aft running plywood encased in the fiberglass roof material. The outboard strips are probably 3/4 inch plywood and the inboard three strips are 1/2 inch plywood ( see photo below of center section).
I mounted my year and half old Fantastic Vent 6600 over the foot of the bed. As far from our heads as possible and still fit in the roof. The 12 volt electrical wiring between the two penthouse ceiling lights goes right through this area. Easy place to get power for the fan after I cut them making the fan mounting hole.
Oh yes, even if you mark all the 12 volt wiring clearly as to what is positive and what is negative you will blow the fuse on the Fantastic Vent if you connect them backwards. Just can't get good help these days
