scope:

This manual provides best industry practices and technical information about the design, materials and installation techniques applicable to membrane roof systems used in low-slope applications. The manual includes information about roof decks, air and vapor retarders, rigid board insulation, roof membranes, fasteners, surfacing, accessories, roof system configurations and roof re-coverings. This latest edition has a new format which will assist in proper product and material selection. Users can initially refer to the first chapter which contains a selection of roof system configurations. Each of the configurations has a list of applicable roof components along with references on where to find additional information in the manual. Also included are 203 construction details for built-up roof (BUR) membrane, polymer-modified bitumen, liquid-applied, EPDM and other single-ply membrane roof systems.

This publication is a volume in The NRCA Roofing Manual series. Each volume of the series is intended to be updated every four years. For example, The NRCA Roofing Manual: Metal Panel and SPF Roof Systems-2012 will be updated in 2016, The NRCA Roofing Manual: Steep-slope Roof Systems-2013 will be updated in 2017, etc.