Originally Posted by nealtw
Old dog; I think 12 degree Is about 3/12 pitch
Scot; Is this a shed roof or does it have a peak?
Well, I saw 12 degrees and thought he was referencing temp. We measure rise and run as 3/12. Oh well, sorry about the confusion, 12 degrees on a roof is not the same as 12 degrees C.
Make sure that the screws are in straight and not crooked or run at an angle. Also make sure any flashings are in tack. If its free standing does the metal extend up past the top edge if so it should have a top flashing that extends down the fascia and down the roof, imagine and inverted L.