Issue link: http://digital.canadawide.com/i/354800
you need to be mindful of where you place the vapour barrier on the assembly. But you're painting a primer on anyway, so why not use a primer that's spec'd as a vapour barrier?" Duffy says. The new open-cell foam is also targeted at people concerned about the environment and avoiding waste. Some foams are hard to control in application so that considerable trimming back is required afterwards. But because Icynene Classic Plus has relatively slow rise, its application is easier to control. Icynene ProSeal was also released onto the market in April this year and is Icynene's latest closed cell medium density spray foam insulation. "It's targeted at folks who want three things: a continuous air bar- rier, continuous insulation, as it's aimed at the exte- rior, just behind the cladding, and those who want the maximum R-value in a minimum of space," Duffy says. The high efficiencies and convenience of this prod- uct come with a premium, he says. Icynene ProSeal costs about a third more per R-value than Classic Plus. Companies like Icynene and other manufacturers of spray-applied insulation are perhaps being encouraged to roll out new niche products by the fact that the sector as a whole across North America appears to be increas- ing market share. At $990-million annually, the market share in the U.S. is currently about nine per cent. Andrew Cole, executive director of the Canadian Urethane Foam Contractors Association ( CUFCA), says that in Canada spray foam accounts for an estimated 20 to 30 per cent of the market, based on activity num- bers for CUFCA members and their approximately 30 per cent share of the market here. Certification and standards requirements are also From Sound Solutions: Prodema provides high-density, resin-core panelling faced with natural wood coated with a proprietary fi nish. AUGUST 2014 /17 Building Envelope Building Science Structural Engineering Structural Restoration Parking Facility Design Structural Glass & Façade Engineering Vancouver ■ Victoria ■ Nanaimo ■ Calgary ■ Edmonton ■ Lethbridge ■ Toronto ■ Kingston UBC Sauder School of Business: Vancouver, BC Building Envelope Engineering Canmet Materials Technology Lab: Hamilton, ON Building Envelope and Structural Engineering Hillcrest Centre (2010 Olympic Curling Venue): Vancouver, BC Building Envelope and Structural Engineering Robson Square Revitalization: Vancouver, BC Building Envelope and Structural Engineering