If you live in a climate with heavy snow loads you ll want your roof to be a bit steeper at least 4 12.
Roofing pitch on a perdue chicken house.
For most climates the minimum pitch you ll want for your chicken coop is 3 12.
Make sure the pitch of the trusses is the pitch that you want for your new roof.
Premade trusses will form the skeleton of your new roof above your old roof.
Chicken keepers who have used plastic panels for their chicken coop roof with no plywood base have said that the wind can rip them off.
There are some standing seam metal roofing options available from atas and other manufacturers that can be installed on a roof with pitch of 1 12.
You could also opt for a pvc flat roofing membrane.
Others have said their roofs have been damaged by hail the hail actually broke straight through the roof in some cases actually ripping it apart.
The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7.
Asphalt shingles cedar shakes roll roofing built up roofing etc.
So you would need to pick the right option as most regular standing seam metal roofs will require a roof pitch of 2 12 or even 3 12 at a minimum.
Any kind of real roofing will work fine in a chicken coop.
A common house roof pitch is 5 by 12 which means it slopes up from the wall at 5 inches per foot.
Before galvanized roofing became widely available most coops seemed to have either fancy shingle roofs or lowly tar paper roofs.
As a poultry farm owner you ll never punch a time clock and you ll have the satisfaction of leading your own business and being associated with trusted and respected brands.
If you live in a dry climate with very little rain or snow you could probably get away with a 2 12 pitch.