In general the greater the slope of the roof the better as standing seam is a water shedding system and relies to slope and gravity to shed away any rainwater moisture and snow.
How to install stand and seam metal roofing.
Each length of roofing sheet metal called a pan must be bent up at the edges to make seams.
Place the first panel with overlap leg along the alignment line.
In cold weather slide the panels tight against the eave flashing and in warm weather allow a gap for expansion.
The special trim is often easier and safer to install.
How to install a standing seam metal roof preparation makes perfect.
You can use a special gable trim or a regular drip edge.
Fasten panel side with number ten pancake head screws and the top of the panel with three number fourteen mill points.
To finish off each end cut along the bends and fold the top plane down 90 degrees toward the eave trim and cut other flaps flush.