Contact Information

503-243-6222

5331 S Macadam Avenue #314
Portland, OR 97239

Erik Lawrence | AIA, M.Arch.

Associate, Project Architect

Erik Lawrence | AIA, M.Arch.

Associate, Project Architect

As an Oregon-licensed architect, Erik brings a diverse set of skills to our team in Portland. He provides expertise in the investigation, analysis, and design of building enclosures.

His unique role as an architect in the building science field has allowed him to specialize in integrating the technical aspects of enclosure design and detailing for buildings with a sharp focus on affordable aesthetic quality that helps clients achieve their goals.

As the building industry continues to explore unfamiliar and audacious designs, Erik’s architectural experience has become a valued asset to many of our clients.

Ariel Levy | MS, PE, LEED AP

Principal, Chief Operating Officer, Senior Building Science Specialist

Ariel Levy | MS, PE, LEED AP

Principal, Chief Operating Officer, Senior Building Science Specialist

Ariel’s experience ranges geographically from the East to the West Coasts and includes buildings of all types. He manages a number of building enclosure consulting and remedial repair projects and leads many building enclosure design reviews and investigations.

In addition to his role as a Senior Building Science Specialist, Ariel is the Chief Operating Officer of RDH and participates in the overall direction and management of the firm.

Prior to his current position in the Portland office, Ariel spent several years practicing in Boston and Los Angeles. He is a registered Professional Engineer in six states, including Oregon, Washington, California, Alaska, Montana, and Georgia.

Kathleen Smith | CT

Principal, Building Science Specialist

Kathleen Smith | CT

Principal, Building Science Specialist

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 for Existing Buildings.

Kathleen takes a client-first approach to build positive relationships with building owners and Owner Associations. She works to provide support for owners of existing buildings ranging from problem solving through maintenance and reserve planning as well as repair needs. Her responsibilities span a project’s entire scope, including planning, repair solutions, estimating, and project implementation.

Kathleen began her career with RDH in Vancouver and joined the Portland team in 2006. She provides support to the condominium community in Portland by providing education opportunities to clients and manager groups, working as part of the local CAI Education Committee and being a member of the Building Envelope Council of Oregon.

David C. Young | PE

Principal, Senior Building Science Specialist

David C. Young | PE

Principal, Senior Building Science Specialist

David is a Senior Building Science Specialist who provides numerous services across our New Construction and Existing Buildings practice areas.

When contributing to building enclosure engineering projects, he is often involved from the conceptual design phase through project wrap-up. His eye for detail makes him adept at identifying performance issues and opportunities for increased durability.

David also works on historic conservation and restoration on the West Coast; for example, he recently completed the rehabilitation of Kaiser Permanente Town Hall in Portland.

David joined the Vancouver office in 1999 and was part of the team that brought RDH to Portland in 2004.

Casey McDonald | BS

Associate, Project Consultant

Casey McDonald | BS

Associate, Project Consultant

As a Project Consultant, Casey takes pride in sharing his knowledge of various glazing and enclosure systems with architects, developers, and contractors. He has contributed to several recent leading developments in Portland, Oregon, including Adidas N.A. Headquarters and the 250 Taylor office building.

Casey’s wide-ranging experience includes 10 years as a design team leader for a high-end custom glazing and façade manufacturer and holds multiple positions on the National Fenestration Ratings Council. He is often called on to review complicated design elements for projects that incorporate unique cladding and fenestration systems.

Casey has consulted on several mass timber projects, providing invaluable guidance for moisture management of cross laminated timber assemblies. He was significantly involved in the design and construction of Carbon12, currently the tallest wood building in the US.

As an avid researcher and presenter, he provides comprehensive coverage of topics such as building energy code compliance, hygrothermal analysis, and building science fundamentals.

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