NRCA offers technical publications
The NRCA Guide to Roof Coatings provides an objective discussion about the application of various roof coatings, where they may best be used and what preparations are necessary for their successful performance. The guide also provides generally accepted guidelines for the application of common roof coatings and roof coating systems to various roof surfaces.
The NRCA Green Roof Systems Manual2007 Edition provides in-depth technical information regarding the design and installation of quality green roof systems. The manual's focus is waterproofing aspects of green roof systems. Additionally, the manual provides limited information about green roof system components that are not waterproofing-related, such as growth medium, filter fabric and reservoir layer.