The corrugated metal roof minimum slope is 5 degrees.
Minimum roof pitch shin metal.
In 12 0 25 in 12 1 19 built up roof coal tar pitch.
It is the recommended slope as there is no guarantee if you opt for flatter pitch than this.
9 46 built up roof asphalt.
Minimum required roof slope for roofing materials.
Minimum pitch for corrugated metal roof corrugated roofing is an amazing choice for conventional pitched roof despite having the severe limitation about the pitch.
Roofing material or system.
The minimum pitch for metal roof shingles and lapped non soldered panels is 3 12.
Manufacturers specify a minimum pitch for each of the profiles they offer and sometimes they can be installed at a lower pitch if special underlayment or installation procedures are followed.
And profiles like standing seam which utilize a concealed connection to the roof deck require only a one and a half inch minimum pitch.
After that the miimum pitch for metal panels depending on the methods used to join the panels.