Mio Ausable School – Mio, Michigan Written by dewardknapp on March 20, 2019. Posted in Replacement Roof. Flat PVC Roof Installation The new flat PVC roof at the Mio Ausable School in Mio, Michigan.The new, flat PVC roof abuts a low slope roof.Because this portion of the school joins other low slope roofs, the installation entails some complex edge features.Through the roof exhaust and climate control systems on the flat roof.mio-school-5The waterproofing at the base of this heating and air conditioning unit is visible in this photo. Previous Next