This manual addresses cutting-edge technologies available for vegetative roof systems

NRCA’s newest manual addresses cutting-edge technologies available for vegetative roof systems, including the waterproofing system and its associated components, such as a protection course, a root barrier, a drainage layer, thermal insulation and an aeration layer, and an overburden of growth medium and plantings. Best practices are included for the design and installation of extensive, semi-extensive and intensive vegetative roof systems.