As part of our service we also repair or re-cover roof valleys. Replacing old lead or copper valleys with a 2 or 3 layer Paralon membrane system has several advantages. It is not only cheaper than replacing with lead or copper, but there also no need for steps in the valley, which can simplify construction and reduce the height rise in the valley to a minimum. The Paralon system is very versatile which allows for greater complexity in design. Once laid a Paralon valley will last for many years.