I d do two layers of 30lb tar the nails tell them it will need replacement in 5 7years and call it a day.
1 12 roof options.
What is a 1 12 roof pitch if a roof rises 1 in a length of 12 this is 1 12 roof pitch.
This is for the top level of a 3 story building that is 26 by 64.
1 12 roof pitch angle 4 76 degrees.
Examples of extreme slopes range from 1 4 12 almost flat to 12 12 sloping down at a perfect 45 degree angle.
Most snap together metal roofs require a 3 12 or 4 12 pitch to work properly and keep water from entering the home but a metal roof that is professionally seamed on site can be used down to a 1 12 pitch.
Saved by wan zainuddin 1.
Long lasting and old fashioned metal roofing is an excellent design choice if most of your house has steeper roof.
A very low pitch roof can also be done in metal.
At 1 12 pitch you are right at the threshold where standing seam becomes impermissible i mean true standing seam with a rolled lock seam and soldered flat seams must be.
For most home styles roof pitches fall in a range 4 12 a moderate slope up to 8 12 fairly steep.
In fact a properly installed metal roof can be used on roofs as shallow as 1 2 inch 12 inches which is almost flat.
I would just explain that any 1 12 roof w o torch down or membrane may leak.
The ibhs recommends a 4 to 6 pitch roof.