What do you put on low pitch roof?

What is a Low-Slope/ Flat Roof System? | Best Roofing

Benefits of Metal Roofing
Modern low-slope roof or flat roofs tend to use a continuous membrane covering which can better resist pools of standing water. These membranes are applied as continuous sheets, bonded together with heat-welding or adhesives. A more expensive low-slope or flat roof option include sealed metal roofs using copper or tin.Jul 17, 2012