Dr. John Straube | PhD, P.Eng.

Principal, Senior Building Science Specialist

Dr. John Straube | PhD, P.Eng.

Principal, Senior Building Science Specialist

A prominent figure throughout North America, Dr. Straube is an influential and driving force in the industry. Well-known in a variety of building science and research circles, he helps guide the direction of RDH and is seen as a mentor to all levels of staff.

He has broad experience in the building industry and is considered an international expert, having been involved in the design, construction, repair, and restoration of buildings in Canada, the United States, Europe, Asia, and the Caribbean.

Dr. Straube is also known for his academic contributions as an Associate Professor in the Department of Civil Engineering and the School of Architecture at the University of Waterloo, where he teaches courses in structural design, material science, and building science to both disciplines.

Kathleen Smith | CT

Principal, Senior Project Manager

Kathleen Smith | CT

Principal, Senior Project Manager

An experienced professional, Kathleen leads our Maintenance and Planning group out of the Portland office. She possesses a diverse range of skills in the application of building science technologies, building asset management, and contract administration services.

Kathleen is heavily involved in keeping a clear line of communication between the building owner and contractors and suppliers. Through her experience, she has developed a strong rapport with a range of service providers and manufacturers, furthering her ability to deliver on the client’s expectations.

Kathleen left Vancouver to join the Portland team when it was established in 2004.She has built a strong position for herself in the industry, including being a member of the Building Envelope Council of Oregon.

Jonathan Smegal | M.A.Sc.

Associate, Senior Project Manager

Jonathan Smegal | M.A.Sc.

Associate, Senior Project Manager

Based in Waterloo, Jonathan is an important part of our Building Science Laboratories team. He regularly leads laboratory research, forensic analysis of building failures, hygrothermal modeling, and field monitoring of building enclosure performance.

A trusted resource, Jonathan has managed more than a dozen full-scale field tests of wall and roof performance in various locations throughout North America. He has also been involved with numerous new construction site audits for residential and commercial construction, from the design phase through to the final walk-through.

In 2007, Jonathan completed his master’s thesis on Drainage in Small Cavities in Wall Systems as part of the Building Engineering Group at the University of Waterloo. This research has been published in various forms, and he presented it at the Alaska Building Science Network conference and the 11th Canadian Conference on Building Science and Technology.

Kyle Silliker | PE

Principal, Building Science Specialist

Kyle Silliker | PE

Principal, Building Science Specialist

Kyle leads our New Buildings group, and is the Co-Regional Manager of the Seattle office.

A proponent of quality assurance and client satisfaction, Kyle is sought out by developers and architects to assess the practicality and performance of their concepts. On both the West and East Coasts of North America, he consults on energy code compliance and energy retrofit services.

Kyle is also a member of the Seattle Building Envelope Council.

Colin Shane | M.Eng., P.Eng., PE

Principal, Senior Project Manager

Colin Shane | M.Eng., P.Eng., PE

Principal, Senior Project Manager

Colin is a Professional Engineer in the United States and Canada and provides operational and project leadership in the San Francisco Bay Area office.

Colin has a broad knowledge of building construction and applies building science principles to analyze and design durable, energy-efficient building enclosures. He shares his experience by regularly speaking about topics related to building enclosures at events across the United States and contributes to industry organizations with the aim of making buildings better.

Colin began his career with RDH in Vancouver before transferring to the San Francisco Bay Area and now plays a key role as part of the leadership team for our California operations.

Chris Schumacher | M.A.Sc.

Principal, Senior Building Science Specialist

Chris Schumacher | M.A.Sc.

Principal, Senior Building Science Specialist

Chris is recognized as an expert in the field of building monitoring as well as enclosure and building systems testing. Chris’s formal education in architecture and engineering is balanced by two decades of building enclosure design and testing experience.

Chris oversees much of the work done through RDH Building Science Laboratories, and he regularly consults on the development of experimental test programs for academic institutions, building product manufacturers, and government agencies.

Examples of Chris’s research work include the Thermal Metric Project, a multiyear investigation of thermal performance in full-scale wall assemblies; and the development of an apparatus and test method that measures dense-pack airflow resistance to support the development of the Building Performance Institute’s test standard BPI-103 and material standard BPI-102.

Before joining RDH, Chris was a founding principal of Building Science Consulting Inc. and a founding partner of Balanced Solutions Inc., an innovative Canadian building science RD&D consultancy.

Chris Saldanha | PE

Associate, Senior Project Engineer

Chris Saldanha | PE

Associate, Senior Project Engineer

Chris works on both New Buildings and Existing Buildings projects to provide desired outcomes and meet client expectations.

He regularly provides field review and has been involved in making key building enclosure-related decisions on projects in Washington, including the Bullitt Center and Washington Square Towers.

Chris’s particular building science expertise includes hygrothermal computer modeling of enclosure assemblies, 3D heat flow analysis, infrastructure renewal, and heat and moisture flow and energy use analysis for sustainable buildings.

Chris joined the Seattle team in 2007 after gaining industry experience working for a concrete manufacturer in Ontario.

Gerry Ruehle | B.Arch., B.E.S.

Associate, Project Designer

Gerry Ruehle | B.Arch., B.E.S.

Associate, Project Designer

As the lead of our Vancouver drafting team, Gerry’s focus is primarily on design development and the coordination of construction documentation for building enclosure rehabilitation projects.

Trained as an architect, Gerry brings 20 years of design and detailing experience to rehabilitation and renewal projects. He also assists field staff with the interpretation of design details and with necessary modifications to address as-built conditions.

Gerry gained experience working for architectural firms in Vancouver and Toronto before joining RDH in 2003.

Michael Roche | B.Sc. (HONS), MCPM

Principal, Manager of Construction Services

Michael Roche | B.Sc. (HONS), MCPM

Principal, Manager of Construction Services

Michael is responsible for overseeing RDH’s construction services. As manager, Michael is committed to delivering high-quality project management services through our Construction Project Management (CPM) division. For more than 15 years, Michael has helped develop and grow the CPM division in the Lower Mainland and Victoria, emphasizing quality and performance in all areas of work.

He has successfully managed the remediation of many buildings that face complex challenges, including residential buildings, institutional buildings at the University of British Columbia and Simon Fraser University, hotels such as the One Wall Centre and the Sheraton Guilford Hotel, plus the unique Broadway Pentecostal Church.

Michael first joined RDH as a Project Coordinator before progressing to become a Senior Project Manager and then assuming the role of Manager of Construction Services. He is committed to growing RDH’s services by ensuring that clients are treated with professionalism.

John Robb | B.Sc. (HONS), M.Sc., MBA, CPA

Principal, Chief Financial Officer

John Robb | B.Sc. (HONS), M.Sc., MBA, CPA

Principal, Chief Financial Officer

Since 2012, John has been responsible for the oversight of RDH’s finance and operational functions, including the accounting, business applications, IT, and human resource teams.

Lorne Ricketts | M.A.Sc., P.Eng.

Principal, Building Science Specialist

Lorne Ricketts | M.A.Sc., P.Eng.

Principal, Building Science Specialist

Working across a wide spectrum of RDH’s core practice areas in his roles as a consultant, researcher, and educator, Lorne is able to leverage his multifaceted expertise to identify optimal solutions to complex building science problems.

As a trusted consultant, Lorne regularly works closely with architects and developers to achieve their design and performance goals. Lorne’s typical projects include world-class architecture, industry-leading energy efficiency, and cutting-edge building technologies.

In his role as leader of our Building Science Laboratories team in Vancouver, Lorne works with manufacturers, governments, and industry organization to develop and test the next generation of building systems, and to lead change through the production of numerous industry-leading guidance and research documents.

Lorne is deeply committed to education and is an accomplished presenter, having spoken at numerous conferences and industry events across North America. In addition to his work with RDH, Lorne also passes on his knowledge to the next generation of engineers as an Adjunct Professor at the University of British Columbia, where he teaches building science in the Department of Civil Engineering.

Dave Ricketts | M.Sc., P.Eng., FEC

Principal, Senior Building Science Specialist

Dave Ricketts | M.Sc., P.Eng., FEC

Principal, Senior Building Science Specialist

As one of the three co-founders of RDH, Dave has played a crucial role in the overall direction and focus of the company. The experience and knowledge he has gained from growing RDH makes Dave a valuable resource to all staff as RDH continues to move forward.

Throughout his career and his time with RDH, Dave has managed and guided multiple exemplary building enclosure engineering projects. He combines a thorough understanding of building science theory and materials with practical knowledge of construction practices and sequencing.

A key contributor to the evolution of building codes and best practices following BC’s leaky condo crisis, and a respected leader across North America. Dave has led several landmark policy, guideline, and research initiatives. He had a crucial role in the pivotal study, Survey of Building Envelope Failures in 3 & 4 Storey Wood Frame Buildings in the Coastal Climate of BC, commissioned in 1996.