Gannon Roofing Supply Share: Roofing & Siding, GuttersBuilding Materials Gannon Roofing Supply Visit Website 4505 Dustin Dr Sioux City, IA 51111 (712) 279-7660 (712) 258-3725 (fax) About Map About Supplier of roofing, siding, doors, and windows. Commercial and residential roofing, steel and composite. Vinyl and fiber cement siding. Variety of services for take off to roof tops. What's Nearby? Distance: 5 10 15 20 25 50 mi.