Corolla Roofing installs tapered roof insulation systems. The goal of tapered roof insulation systems is to either drastically reduce or completely eliminate the amount of standing water on the membrane when the existing roof is not sloped enough to do so. Draining water from the roof quickly minimizes the negative effect that standing water has on roof membranes. A properly designed tapered roof insulation system provides positive drainage and helps extend the life of the roof membrane.