THE ONLY SOURCE FOR PROFESSIONAL ICI ROOFING CONTRACTORS IN ONTARIO ORN 8  ONTARIO ROOFING NEWS – ISSUE 1 2019 40% 35% 30% 25% 20% 15% 10% 5% 0% Temperature 93 121 149 176 204 232 260 288 316 ZERO % of fumes in the air Regular BUR 75 % Reduction °C * ** By BITUMAR 11155 St-Catherine Street East Montreal-East, QC H1B 0A4 Tel.: 514 645-4561 bitumar.com ZERO ODOUR • When cold • Up to 177°C • 75% less fumes than regular roofing asphalt • BURPAK ZERO contains an odour suppressant which combined with a lower temperature of installation, minimizes asphalt odour • Zero complaint on odour • Complaints are time consuming and reduce productivity on job sites * The ideal viscosity temperature is typically lower by 23°C for BURPAK ZERO when compared with regular roofing asphalt. Therefore, there is no need for the kettle temperature to exceed 232°C when using BURPAK ZERO. ** Maximum temperature of a kettle as per ASTM D312. A NEW ROOFING ASPHALT WITH A LOWER EVT WHICH REDUCES FUMES AND ODOUR. For over 60 years, we’ve been the number one name in customer service. DELIVERY IN THE GREATER TORONTO AREA www.lbsupply.ca | 416 420-5051 Commercial or residential, pick up or rooftop, special order or stock we are your one stop shop for roofing material. If you need it, we have it in stock at the right price. C over boards are commonly used in commercial roofing to add strength and protection to a roof assem- bly. They are a rigid board in a compact roof assembly that enhances resiliency and durability. Cover boards are installed below the membrane and above the insulation to minimize the deterioration of other materials during the service life of the roof. Cover boards have become increasingly important as a result of climate adaptation initiatives to ensure that roofs are increasing their durability in response to the changing weather events. They are also commonly used as platforms for rooftop add-ons, such as photo- voltaics and green roofs, which result in increased foot traffic and additional stresses on the roof system. Therefore, cover boards have a major role in protecting the roof assembly from damage, and as a result, must possess critical properties to fulfil their function. Roof failures due to high wind events can be attrib- uted to the cover board interface as the weakest link (Figure 1). The observed field failures have led to the in-depth investigation of the cover board properties and performance. North American Consortium Advancing Cover Board Requirements with the Inclusion of Interface Evaluation By Dominique Lefebvre and Bas Baskaran, National Research Council of Canada Cover Board Consortium Failure of roof assemblies due to a lack of peel resistance between interfaces. Figure 1a (left): Peeled cover board Figure 1b (above): Peeled membrane Peeled Cover Board Peeled Membrane