INSIDE: Our preview of Top Glass Ten, Canada's architectural show coming April 30 in Mississauga, Ont. Speaker and session details, special events and a sneak peek at the show floor. Check out our Under the Glass profile of BVGlazing Systems, one of Toronto's largest glass systems fabricators. Andrew Dolphin has a new laser etcher for bird-friendly glass and he's loving it. Office-to-condo renovations are a hot topic but what are the challenges for glaziers? Building science experts and people who have executed these projects weigh in. All this and more in your spring edition of Glass Canada.