A metal garage with a horizontal roof design is usually more affordable and easier to install than a vertical roof design.
Horizontal metal roofing.
I am going to guess that you want to save money time labor on install.
The a frame vertical roof is our upgraded roof option.
The direction of the panels makes it easy for debris to run off smoothly.
The ridges on this roof style run top to bottom from the peak down to the eaves.
With horizontal metal siding whether you want a traditional or modern look is no longer applicable to the direction you run your panels.
The pros of horizontal roof metal garage.
This option is popular in regions with heavy snow and rainfall.
Metal roofing is practically impervious to rain and snow because of the way the panels interlock and because the surfaces are hard and slippery.
Can you use galvanized steel roof panels horizontally on a roof.
Ribs in panel run length ways on regular carport.
Maximum shedding of rain and snow.
Minimum roof pitch typically is 3 in 12 this means the roof rises 3 inches for each horizontal foot.
Less bracing is required for the structure since the roof roll down style requires less material.
A major difference between a horizontal regular carport and a vertical carport is that the ridges on the steel panels in a horizontal roof run parallel to the side of the building and the ridges on a vertical roof run vertically or straight down towards the ground meaning they intersect with the side of the carport side wall or frame.
The link shows a typical corrugated roof panel with 1 2 inch tall ribs pretty standard for a light duty roof.
Vertical siding offers a unique look while traditionally horizontal siding has been thought of as easier to install.