David is a professional engineer and Managing Principal at Synergy Partners, a consulting engineering firm specializing in building renewal, performance audits and reserve fund studies. David applies the lessons learned in evaluating building enclosure performance in existing buildings to new building enclosures or building renewal to optimize building performance and durability. David is a member of the CSA A440.4 subcommittee that deals with Window Installation. He is a past President of the Ontario Building Envelope Council (2007-2008). David is currently a Part-Time Professor at Ryerson University where he teaches Building Envelope Restoration for the Masters of Building Science Program.