Contact Information

206-324-2272

2101 N 34th Street #150
Seattle, WA 98103

Bailey Brown | MS, PE

Principal, Building Science Specialist

Bailey Brown | MS, PE

Principal, Building Science Specialist

Bailey is a Building Science Specialist who is recognized for her ability to communicate industry best practices, as well as her ingenuity to apply these practices to buildings throughout the Northwest.

As an author of various leading guides and bulletins, Bailey communicates technical topics to a range of audiences. She has both authored and contributed to numerous industry publications across the United States. One example of her work is the recently published Masonry Systems Guide: Northwest Edition.

Bailey also consults on the design and constructability of New Buildings projects. She regularly performs thermal and hygrothermal analyses of building enclosure systems and advises on energy code compliance and design throughout various project phases.

Bailey also serves as the leader of our Technical Communications team, where she provides guidance and coaching to a number of design and technical staff.

Paul Duffy | B.Sc.

Principal, Senior Project Manager

Paul Duffy | B.Sc.

Principal, Senior Project Manager

Paul has a proven track record during his time directing RDH’s construction management operations in both Seattle and Portland.

He takes a client-first approach that allows him to build positive relationships with building owners and project stakeholders. His responsibilities usually span a project’s entire scope, including managing permitting and entitlements, estimating and reviewing drawings, and evaluating details for constructability.

As a veteran of the construction industry in the Northwest, Paul has built a reputation for selecting and leading design and construction teams to produce projects that meet client expectations and maintain their budgets.

Paul is also a member of the Seattle Building Enclosure Council and the Past Chair of the City of Kirkland Design Review Board.

Michael Kramer | LEED AP

Principal, Senior Building Science Specialist

Michael Kramer | LEED AP

Principal, Senior Building Science Specialist

As a Senior Building Science Specialist, Michael has comprehensive experience leading New Buildings and Existing Buildings projects at RDH. His meticulous and detail-oriented approach can be attributed to his knowledge of building science and his industry experience.

Along with applying his building science focus to assess the relationships between sustainable building, building durability, and building codes, Michael is also the Co-Regional Manager of RDH’s Seattle office.

His past achievements include being a member of the City of Seattle Green Building Team that developed Seattle’s ground-breaking Sustainable Building Policy—the first municipal policy of its kind to adopt the U.S. Green Building Council’s Leadership in Energy and Environmental Design (LEED) Green Building Rating System.

Michael’s diverse career path, as well as his knowledge of the Washington and Seattle building, mechanical, and energy codes, is an asset to our team and clients.

Along with being an LEED Accredited Professional (LEED AP), he also holds memberships with the National Institute of Building Science and the Seattle Building Enclosure Council.

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.

Neil Warburton | PE, CPHC

Principal, Building Science Specialist

Neil Warburton | PE, CPHC

Principal, Building Science Specialist

Neil’s versatility allows him to contribute to RDH’s New Buildings, Existing Buildings, and Energy & Sustainability practice areas in Washington.

Neil is a Building Science Specialist who works tirelessly to ensure that project requirements and client expectations are achieved. He works on a wide range of New Buildings and Existing Buildings projects, and he is committed to exploring and integrating Passive House and high-performance buildings on the West Coast of the United States.

Before joining RDH in 2005, Neil worked with another building enclosure consulting firm in Ontario, where he focused on roofing condition assessments and construction as well as fire protection field inspections.

Denali Jones | PE

Associate, Senior Project Manager

Denali Jones | PE

Associate, Senior Project Manager

Denali’s work is focused new buildings projects, working closely with design and construction teams to help identify key performance issues early and provide practical solutions to building enclosure challenges.

Regarded as an industry expert at air leakage testing, Denali has extensive experience conducting whole-building air leakage testing on large buildings and has led numerous training seminars throughout North America. He works closely with code officials to develop and improve air leakage testing procedures and has contributed to several national air leakage testing protocols and standards. He also supports air leakage testing efforts throughout all RDH offices.

Previous to his role with RDH, Denali worked for a building diagnostic tools manufacturer in Vancouver, BC. He helped shape new product design and development and performed large building air leakage testing, conducted training sessions, and provided technical support for air leakage testers worldwide.

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RDH Building Science