Make sure you design a roof with the rigt heading, and slope. The rest will be done by the installer.
My rails run horizontally, but thats only because it required less rail and mounting hardware compared to vertically. The panels are mounted portrait, in a 5x2 square. Each panel has 2x rails under it, so 4 rails horizonfally on my roof. If you sketch it out then it'll make sense.
Had I gone with vertical rails, each column would've required 2 rails, so 10x rails vertically mounted on my roof.
Make sure you design a roof with the rigt heading, and slope. The rest will be done by the installer.
My rails run horizontally, but thats only because it required less rail and mounting hardware compared to vertically. The panels are mounted portrait, in a 5x2 square. Each panel has 2x rails under it, so 4 rails horizonfally on my roof. If you sketch it out then it'll make sense.
Had I gone with vertical rails, each column would've required 2 rails, so 10x rails vertically mounted on my roof.