Today Mom and I finished securing the frame of the roof deck to the bus. But after pre-drilling the holes and installing the screws, I'm having second thoughts about the strength of the ties we are using. Or, more accurately, I'm concerned with the strength of the roofing metal that the screws are going through to hold the ties.
I think I hit the ribs of the bus. But the drill bit went through the metal mighty easily. Maybe that's typical and I'm being too paranoid?
There are 5 of these brackets per side. Each bracket was roughly centered between the double row of rivets, or was put in-line or just off to one side of a single row of rivets (depending on if the rivet would interfere with the bracket).
Do you guys think this will be enough for a 6' x 16' deck? That's an awful lot of weight placed on 20 screws.
My next step was to drill completely through the roof and install one of those huge 10" braces on both of the length-wise ribs to give me peace of mind about the deck staying in one place. But that's putting more potential leak points in the roof. I'd rather avoid that.