• Green Roof Design Shopping Centre Green Roof

  • Roof Replacement Cedar Shingles for a Condominium Complex

  • Heritage Roofing Steep Slate Roof of Historic Church

  • Machine Base Concrete Foundation and Base



Thank you for your interest in IRC Building Sciences Group (IRC Group). IRC Group is a consulting firm that focuses predominantly on evaluation and rehabilitation of commercial, industrial, institutional and residential buildings. IRC Group specializes in roof and pavement consulting, building envelope, structural, mechanical and electrical engineering and sustainability.


Our team of engineers, RCI registered roof consultants and quality observers, project managers and coordinators use a unique cooperation and multidisciplinary integration of engineering services to deliver complete building performance expertise to our clients across Canada.


Our core business is roof consulting and we are proud to manage over 110,000,000ft² of roof nationally. The building science and structural departments similarly manage existing building inventories along with our new construction projects. IRC Group can assist customers manage their large roof inventories through the use of our 24 hour emergency response system and data management software.


IRC Group is an active member of several organizations, including Professional Engineers of Ontario, Construction Specifications Canada, the Ontario Building Envelope Council, RCI Inc., and the Institute of Roofing, Waterproofing and Building Envelope Professionals. IRC Group is an ISO 9001 certified company.



Monty Klein, President of Wells Klein Consulting Group and Albert Duwyn, Preside...


Roof Consulting

IRC Group provides consultation, investigation, specification and quality observ...


Structural Engineering

IRC McCavour Engineering provides innovative and cost-effective solutions to str...


Pavement Consulting

IRC Group now provides paving consulting services for clients in the private sec...


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