Evaluation of a horizontal lifeline system and anchorages used in installing residential roofs Abstract Falls from height are the leading cause of death among construction workers. International regulations require the protection of workers exposed to a risk of falling 1.8 meters or more. Construction workers who install residential roofs are exposed to the risks and hazards of falling because this work is done at elevation and in difficult conditions. Workers precariously balanced on the frame may fall or lose their balance when installing trusses.To protect these workers against falls from height while installing trusses, a home building contractor developed a horizontal lifeline system (HLS) consisting of two aluminum posts and a steel cable, with the roof used as a holding structure. However, this system, although functional, is heavy and cumbersome, which hinders its use on construction sites. At the request of the Association paritaire pour la santé et la sécurité du travail du secteur de la construction (joint sector-based association for the construction industry), this study is meant to improve the HLS to reduce its weight and make it effective, user-friendly and reliable.Testing of falls from height with a dummy on a home building frame reconstructed in a laboratory was done to test the resistance of roof trusses as holding structures. Lastly, the researchers will test the roof’s resistance as a holding structure for the three anchorage connectors most commonly used on roofs. Produced Under this Project Scientific Reports Evaluation of a Horizontal Lifeline System, Anchorage Connectors and Braced Trusses as Host Structure for Residential Roofing Work Research Report: R-947, R-988 Guide and Tools Système de corde d'assurance horizontale (SCAH) sur une charpente domiciliaire en construction ─ Fiche de prévention Technical fact sheet: RF-1076 Video Reports and Conferences Évaluation d’un système de corde d’assurance horizontale, de connecteurs d’ancrage et de fermes contreventées comme structure d’accueil lors de la pose de toitures résidentielles Video Summary: CS-011 Scientific Publications Survol des aspects règlementaire et normatif pour bien choisir son équipement contre les chutes de hauteurLan A. , Bertrand GalySource : Travail et santé, vol. 30, no 3, 2014, p. 34-37Évaluation d'un système de corde d'assurance horizontale (SCAH) et ancrages utilisés lors de la pose de toitures résidentiellesLan A. , Bertrand GalySource : in Bien s'outiller pour intervenir: se développer, se spécialiser, se renouveler : Congrès de l'Association québécoise pour l’hygiène, la santé et la sécurité du travail / AQHSST, (36e : 7-9 mai, 2014, Beaupré, Canada), 2014Méthode de validation d’un système de protection contre les chutes de hauteur à composantes multiplesBertrand Galy, Lan A. Source : Travail et santé, 31(2), 22-24.Evaluation of a horizontal lifeline system used during installation of residential roofsLan A. , Bertrand GalySource : (2017). Journal of Construction Engineering and Management, 143(5). doi: 10.1061/(ASCE)CO.1943-7862.0001247 Evaluation of a horizontal lifeline system and on-site braced trusses as its’ host structure during roof installationLan A. , Bertrand GalySource : Proceeding of Slips, Trips, and Falls International Conference 2017, Toronto, ON. Other Project(s) You May be Interested in Stability Criteria for Ladders and Stepladders Additional Information Type: Project Number: 2013-0047 Status: Completed Year of completion: 2017 Research Field: Mechanical and Physical Risk Prevention Team: André Lan (IRSST)Bertrand Galy (IRSST)