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NRCA releases vegetative roof systems manual

NRCA has made available The NRCA Vegetative Roof Systems Manual, Third Edition, which provides technical information for those involved with the design and installation of quality vegetative roof systems. The publication also addresses waterproofing systems and their associated components -- including the protection course, root barrier, drainage layer and thermal insulation -- and overburden of growth medium and plantings. Find more information here.