Flashings are a key component to every roof system. This area is at greater risk for problems because it is where the two parts come together. Duro-Last has been proactive in this situation and has developed a flashing system that limits that potential for problems. Flashings for a Duro-Last roof are custom-made for each roof out of the same material as the decking. This is crucial because it allows the deck to be heat-welded to the flashings, creating one continuous piece. The asphalt-based systems rely on metal flashings that are purchased at a third party location, thus allowing them to place liability for problems on the flashing supplier. Another problem with the metal flashings and asphalt decking is the compatibility of the two materials. With Duro-Last, the pieces are are combined by heat welding. With metal flashings, glue is used to hold the pieces together and is prone to breaking down and allowing water to seep in. (See examples below.)
Below are pictures illustrating how the Duro-Last flashing is installed. In the pictures you can see how no adhesive is used, thus preventing the chance of leaks from the material separating from the metal flashing.
