Canadian Standardization Association (CSA Group)
www.csagroup.org
Ontario Industrial Roofing Contractors Association (OIRCA)
www.ontarioroofing.com
Canadian Roofing Contractors Association (CRCA)
www.roofingcanada.com
Canadian Roofing Contractors Association (CRCA) Technical Bulletins
www.roofingcanada.com/technical.html
National Roofing Contractors Association (NRCA) (U.S.)
www.nrca.net
NRCA Wind Design Guide
www.roofwinddesigner.com
International Institute of Building Enclosure Consultants - Quebec Ontario Chapter (IIBEC QOC)
www.quebecontario.org
International Institute of Building Enclosure Consultants - Southern Ontario Chapter (IIBEC SOC)
www.southernontario.iibec.org
