Accent Building Sciences has solved building science challenges for municipalities, property managers, and building owners across Ontario. Our professional engineering services include: Roofing Building Envelope Engineering Construction Management & Administration Condition Assessments Testing Accent Building Sciences is a Canadian engineering firm with 3 decades of building science experience with large, complex projects in both the public and private sector. Founded in 1997, our professional team helps property managers and building owners replace or repair building envelope systems (roofs, walls, windows, balconies) before a failure in the system leads to costly repairs.