Modified bitumen systems are generally used on flat roofing and provide UV protection for long term performance. A modified APP system utilizes a top ply of modified membrane with one layer or two layers of base sheet. This system is usually torch applied granular surface matching to shingles or white for high reflectivity but self-adhered available when appropriate.
Copper Roof & Ludowici Tile Roof
In the forefront is a double-lock, copper, standing seam roof.
Midway at the copper valley is a copper flat seamed roof with soldered seams.
The background shows a Ludowici tile roof.