Originally Posted by jake_blue
It appears that the ribs extend down past the floor level to the skirt so why not just 'take up the hemline' and raise that skirt up to the floor level?
The support ribs (hat channels) do not
run down to the skirt passed the floor.
They stop about half a inch from the floor, where they rivet to the chair rail on the inside, and the outer skin on the outside.
As little as 6 rivets hold the bottoms in place.
The chair rail rivets are the big 1/4 solid core. The outer skin rivets are the little 1/8th and 3/16. This tells me most of the weight is transfered from the support ribs to the chair rail.
In my case I needed and wanted bigger window openings. Cutting the support ribs at center of the original windows worked best for what I wanted and needed.
Being I was the first to have proper support rib extensions
made to the same shape as the original support ribs, I feel I have the strongest roof raise on skoolie.net.
Using square pipe that don't quite fit right, round pipe, ect don't cut it IMO. Using crap like that is nothing more than a hack of a mess waiting to fail.
Also too many members seem to think fatiguing the steel to no end with a welder is a good idea. The bus was build with rivets for the same reason a air plane is build with rivets. Welding on the thin 16ga support ribs is as bad as welding the frame of your bus.
Originally Posted by EastCoastCB
I've seen bolts and rivets snap.
I've pulled welds with a frame machine and the metal sheared before the weld would fail.
We aren't talking about welding one inch think steel here... This is the kind of welding your car is made of. WHen you wreck your car it goes to an autobody shop... They sometimes weld...
If rivets were better, then they'd be riveting the roll cages together for nascars
For me its welding>adhesives>fasteners
Welding one inch think steel is the right way to attach it. Welding 16 ga sheet steel is not.
No welding is done on cars today. They simply change the bent body parts.
If nascar roll cages were made from 16 ga steel, they would be riveted together.
Anything that need to take movement is riveted, not welded.
Just like the internal steel framework for skyscrapers. Again, rivets, not welding.
Proper order of modern fastening is like this.
Adhesives, rivets, welding.
Proper riveting can be done by anyone.
Proper welding needs to be done by a professional, in a shop, with minimum $10,000 in tools. Way to much to go wrong for the DIY person.