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Exterior Walls & Roofing


Broad Expertise

Modern cladding technology can be complex. Understanding the materials, configuration and failures requires a solid understanding of building science principles and construction practices.

We have proven experience with all types of enclosure systems, including masonry, stone, concrete, EIFS (Exterior Insulation Finish System), stucco, metal, windows, sloped glazing and curtain walls.

We also have expertise with all types of roofing technologies, including inverted and conventional roofs.

From newer single-ply membranes to time tested built-up membranes and shingles, WSP has applied roofing solutions to offices, hospitals, retail facilities, industrial plants and residential buildings.

Theory Complements Practicality

At WSP, theory is coupled with the practical realities of cladding performance.

Ongoing research and investment in leading-edge computer-based modeling tools allows the WSP team to understand and advise on cladding performance for any type of building. We use this information to help prevent potential problems, increase building lifespan, and improve occupant comfort, safety and satisfaction.

Industry Leaders

WSP's cladding engineers are well respected in the industry. We partner with universities and manufacturers for ongoing research and frequently publish and lecture throughout North America.

Our roofing group includes members of RCI Inc., an international association of building envelope consultants. Our group includes a Registered Roofing Consultant (RRC) – one of only 13 designated professionals in Canada.

We also participate on the American Society for Testing and Materials (ASTM) Roofing and Waterproofing Committee, which is responsible for developing new industry standards.

Green Leaders

We are leaders in providing environmentally responsible exterior wall and roofing solutions, including:

  • green roofs
  • low VOC material selection
  • high performance roofing materials, and
  • LEED EB certification.




Peter Leong
National Business Development Lead