Advances in product technology and building codes/standards have created unforeseen consequences, with moisture migration from different sources entering into the roof assembly and affecting its long-term performance. How the moisture moved into the assembly, the results, and the overlooked details shall be reviewed, as well as how to mitigate or correct these concerns prior to installation.

With all the outside forces affecting building construction, such as the International Code Council, economic changes, and green standards to name a few, it is no wonder some decking materials have conflicted in interfacing with the roofing assemblies.