b'COMIT TECHNIQUE NATIONALmembrane peut se mettreplisser en raison de linstabilit dimensionnelle des composants. Nous utilisons des techno-logies haut de gamme comme les conceptions de mesure au laser ou les logiciels de corrlation dimages numriques pour trouver la stabilit dimensionnelle et le mouvement relatif entre les lments conscutifs.plus grande chelle, le CTN aide le CNRCdvelopper un indice de durabilit dpendant du climat afin daider les propri-taires de maisonsvaluer la dure de vie de leurs toits. Loutil prend en compte la rgion du Canada dans laquelle Resistance Calculator to determine the resistance of tested low- vous vivez, les conditions mtorologiques de cet endroit et les slope membrane roofing specimens; and a Climate-RCI toolventuelles fluctuations climatiques qui pourraient affecter la that offers estimates on future climatic wind and rain loadsdurabilit du bardeau, explique M. Baskaran. Ensuite, il fournit based on current climate change data. un indice bronze, argent ou or qui donne aux propritaires une Wind-RCI was created to make life much easier for designmeilleure ide de la dure de vie de leur toit en se basant sur professionals on the industrial side because its an any time,des informations scientifiques. any place type of tool they can use to calculate wind uplift forEn ce qui concerne la suite du programme du CTN, les sujets any location in Canada, says Bas Baskaran, Principal Researchlis aux technologies de prfabrication, aux assemblages de Officer at NRC and NTC member. toitures photovoltaques, aux techniques de dcarbonisation et The NTC is also joining the NRC in examining variousaux innovations en matire de conception sont tous suscep-wind uplift measurement technologies and frameworks. Thesetibles dtre mis sur la table. include a portable wind test chamber that designers can use to Notre mandat consisterechercher les matriaux et les conduct on-site commissioning activities.techniques qui rendront nos travaux plus srs et plus efficaces, Wind uplift is one of our biggest focuses right now as wetout en tant rentables pour le client, conclut M. Poissant. Et try to figure out which types of systems work best in variouspour linstant, nous sommes vivement intresss par les tech-climates, offers Poissant.nologies qui nous mettront sur la bonne voie.Around the bendThe NTC and its partners are also examining technologies to shed light on common roofing issues. For example, says Molleti, On modified bitumen roofs, theres an issue whereAre you membrane wrinkling can start over time after installation as a result of dimensional instability of the components. Werelooking for using high-end technologies like laser measurement designsbiodiverse or digital image correlation software to find the dimensional stabilityofroofcomponentsandtherelativemovementgreen roofs? between one component and the next.Onabroaderscale,theNTCisalsohelpingtheNRC developaClimateDependentDurabilityIndextohelp residential homeowners gauge the lifespan of their roofs.The tool looks at what part of Canada you live in, the weather conditions for that location and any possible weather fluctuations that might affect the durability of the shingle, explains Baskaran. Then, it provides an index based on bronze, silver and gold that gives homeowners a better idea of how long their roof will last based on scientific and technical information rather than a sales pitch.As for what may be next on NTCs docket, topics related to prefabrication technologies, photovoltaic roof assemblies, decarbonizationtechniquesanddesigninnovationsareall likely to be tabled as the group continues to tie into tools and approaches that will keep the industry ahead of the curve. Our mandate is to look into the materials and techniquesCheck out the completethat will make our jobs safer and more efficient while alsoline of pre-grown LiveRoof being cost effective for the customer, says Poissant. And rightSystems at www.LiveRoof.ca or now, were really interested in the technologies that will pointcontact us at 1-800-875-1392us in the right direction.AUTOMNE/HIVER 2023 COUVERTURES CANADA 35'