Skip to navigation

Premolded Corners

Pre-manufactured inside & outside corners for all roof systems

Outside corners provide a guaranteed, uniform, permanent corner seal.  Portals Plus Corners eliminate the cutting, folding, stretching and cementing of materials into unnatural shapes.  The Outside Corners have expansion radii molded into the spine to accommodate construction irregularities.  All edges on Portals Plus Corners are feathered to allow the best possible adhesion.  Outside Corners are available with or without cant and are the true answer to flashing roof curbs and skylight corners. Inside Corners simplify the difficult detail of terminating roofing materials at corners.  All Portals Plus Premolded Corners have seamless molded construction and are essential to a leak-free roof.  The flexibilityof the unit allows for a secure seal.  Reduce the high cost of installation and the even higher cost of callbacks by using Premolded Corners.  Fast, positive, watertight corner details are important for preventing costly leaks.  85% of all roof leaks occur at corners or penetrations.  Quality flashing accessories are the solution to these costly and damaging leak problems.

Overview of Corners