Terrain Guru Needed

[Allen42ACJ]

Snow loads tables have this taken in to account.
A wet heavy snow will not fall off a roof unless it is extremely steep.
12' span is still a 12' span no matter what the pitch.
Measure the vertical on a rafter at different pitches.
The number gets bigger as the pitch increases but the rafter gets longer to.
So it comes out the same.

The ladder idea is,you would not want to use one level extended all the way as a bridge,but standing up it is stronger because of gravity..
Just works in one way unless you are racing soap box cars..