We were recently contracted by the city of Des Moines, Washington to replace the roof at the Beach Park Auditorium. First we removed 2 layers of old composition and installed all 4 inch foam insulation board with a 7/16 plyboard attached to it. Next we installed a CertainTeed Winterguard ice and water shield over the insulation board. Then we installed a CertainTeed Lifetime Landmark Premium Composition Roofing Material with Algae Block. We finished with brand new fascia boards and all new 6 inch gutters.