Hot mop roofs in San Diego are part of low-slope roofing work, where code places strong emphasis on positive drainage

https://sergioqydh644.juniperbrief.com/posts/torch-down-roofs-in-san-diego-modified-bitumen-for-low-slope-roofing

Hot mop roofs in San Diego are part of low-slope roofing work, where code places strong emphasis on positive drainage, roof drains at low points, or edge drainage when allowed.