Meet Our Team
Your project, our experts.
The Certa team has successfully completed hundreds of building projects throughout the United States. No project is the same and our team is highly skilled at tailoring our work to meet the specific needs and goals of a project.
Building Science Specialist | CEI, LEED, AP, RS
Justin Barnhart is a Building Science Consultant with over ten years of experience as an industry-leading Reserve Study provider. Justin has obtained the Reserve Study Provider (RS) designation from the Community Association Institute (CAI), with his building science background a cornerstone of his practice. He can provide superior guidance for short and long-term reserve planning and provided budget forecasting for hundreds of community associations, numerous market rate properties, and many affordable multi-family housing projects and state-owned facilities throughout the region.
SPRAT Level 1 Certified Rope Access Technician
Since 2014, Derek has been engaged in building construction and consultation of a wide variety of projects ranging from net-zero, custom single-family homes to major stadium renovations in the Puget Sound region. With his ability to work through complex project issues, draw on his construction experience and utilize his excellent communication skills, Derek consistently provides technically sound and practical solutions to our clients. Derek is currently a Building Science Consultant in our Orlando office focused on the Florida rehabilitation market.
A registered architect in WA, Tony has extensive experience working closely with owners, contractors, and architects to resolve building science questions on various projects, from high rises buildings to historic renovations and one-of-a-kind residences. He specializes in design peer reviews and building condition assessments and leads design efforts and field investigations to find practical, elegant solutions to complex problems.
Building Science Engineer | BASc, P.E. (OR), CPHC®
Originally from Vancouver, Canada, Anson has been providing building envelope consultation services throughout the Pacific Northwest since 2016. As a licensed engineer, she brings her extensive knowledge of how buildings function and her depth of experience to each of her new construction and existing building projects. Anson believes in combining a drive to achieve successful results, technical expertise, and a thorough understanding of project needs in order to deliver timely and practical solutions to our clients. Anson is a Certified Passive House Consultant (CPHC) through the Passive House Institute.
A Seattle native, BK is an experienced Building Science Consultant who has been practicing architecture and building science in the Pacific Northwest since 2015. BK’s design expertise includes complete building enclosure construction document sets, as well as permitting for addition/ remodel/ rehabilitation projects. He is also experienced in the construction administration of new construction and existing buildings, including building enclosure condition assessments (BECA) of in-service building wall assemblies and identifying failure mechanisms within, as well as providing a wide range of envelope design, repair, and consultation services to HOAs, architects, contractors, and developers.
Joe is a Building Science Consultant with ten years of history in construction. Joe has worked on a number of various projects ranging from single-family homes, rehabilitations, and townhouse or condominium reclads to new construction of downtown high-rises and convention centers. Utilizing his experience in drafting, field performance testing, construction administration, and project management, Joe brings his skills to support any project and team with their building envelope needs. Applying his background in architecture and construction, Joe provides sound building envelope design with practical problem-solving for complex issues.
Adam Di Placido
Building Science Engineer | MASc, P.E. (WA), CPHC®
Originally from Toronto, Ontario, Adam has been actively engaged with new and existing construction projects throughout the Pacific Northwest since 2015. Adam has consulted on a vast range of enclosure systems for various building typologies including commercial, large-scale residential, and specialty construction projects.
As a licensed engineer and Certified Passive House Consultant (CPHC®), Adam uses his professional experience and analytical skills to perform Certa’s energy code compliance analysis and translate required efficiency standards, or the more stringent voluntary energy efficiency standards like Passive House, into creative construction solutions.
Adam has been an industry leader, making numerous contributions to building science research, and has co-authored several publications and guidelines focused on designing and building durable and energy-efficient enclosures.
Hiroki is a Building Science Engineer practicing building science in the Pacific Northwest since 2011. Originally from Japan and as a licensed Professional Engineer, he brings extensive knowledge of how buildings are designed, constructed and how they function. His depth of experience dealing with various construction trades in the field as well as with design teams in meeting rooms, allows
him to keep projects on track and deliver cost-effective yet high-performance building enclosures.
MSc | CDT
Roman is a Building Science Consultant who has been practicing building science in the Pacific Northwest since 2016. Originally from Austria, he has the unique ability to apply his gained working knowledge from both the North American and the European building industry, allowing him to deliver high-performing and long-lasting building enclosures for our clients. He is experienced in providing building enclosure design services for new construction projects, building commissioning (BECx), and property condition assessments. Roman excels in developing innovative rehabilitation and repair strategies. Roman is a CSI-certified Construction Document Technologist, ITC Level 1 Certified Infrared Thermographer, and SPRAT Level 1 Certified Rope Access Technician.
Rob is a Building Science Consultant with over ten years of building enclosure consulting experience. Rob is skilled at providing expertise and technical support throughout the lifecycle of a project. He has performed hundreds of diagnostic building investigations as well as managed rehabilitation projects including single family homes, large and small commercial properties, and industrial buildings. Rob is a Certified AAMA Installation Master.
Luis, a Florida native, is a Building Science Consultant with nearly ten years of experience in property condition assessments, construction monitoring, and project management. Luis has a Mechanical Engineering background and a broad knowledge base with experience in industrial & residential construction and rehabilitation. Luis is a technically diverse and resourceful individual with excellent communication skills focused on delivering practical and reliable solutions to clients.
Director of Architecture
Architect | AIA, NCARB | Building Science Specialist
Jim (James) Riley is Certa’s Director of Architecture and leads our Seattle office. With active projects in Washington, Oregon, and Florida, Jim engages directly with owners, contractors, owner’s representatives, Architects, Jurisdiction Authorities, and designers on a wide range of projects. He works closely with each to deliver high-quality, cost-effective projects that meet the most stringent of standards and expectations. With his strong management skills and commitment to design excellence, Jim consistently exceeds expectations on the most challenging projects. Jim is a licensed Architect in Oregon, Washington, Utah, and Florida and has been practicing since 2000.
Building Science Specialist | Building Technologist
As a building science specialist and construction expert, he brings over 25 years of technical experience to Certa’s projects. He is a leading expert in the evaluation, design, and repair of failed building envelope assemblies. Before starting his consulting career in Vancouver, Canada, Mark specialized in rehabilitating building envelope systems as a general contractor. During that time, he oversaw the repair of numerous distressed buildings and developed cutting-edge techniques in building envelope design and construction.
Director of New Construction
Architect | NCARB, RRC, RWC | Building Science Specialist
Dan is a registered architect in Washington, Oregon, and Florida and has provided a multitude of services over his 18 years of industry experience, focusing on enclosure design and construction-defect remediation. He is an active member of the IIBEC and a voting member on several ASTM committees. Dan holds the Registered Roof Consultant (RRC), Registered Waterproofing Consultant (RWC), and Registered Roof Observer (RRO) designations through IIBEC. His peers have recognized him as a leader in the building sciences through the design, construction, and post-occupancy phases of his projects.
Charlie Sasse is a Building Envelope Consultant and Roofing Specialist in South Florida. He works directly with other project disciplines, architectural partners, sub-consultants, owners, contractors, etc. on projects that meet the highest standards and expectations. Charlie consistently exceeds expectations with strong management skills and a commitment to project excellence. Charlie is a Registered Roof Observer through IIBEC.
Charlie has led and managed various complicated projects in many different environments. He has a high level of knowledge in construction detailing, material selection, roofing design/repair scopes, project administration, and estimating new and existing buildings. He has a high level of understanding and experience managing numerous stakeholder groups for complicated construction projects.
M. Arch | NCARB
Stephanie has worked in architecture design, project management, and construction administration in Florida since 2005. During that time, Stephanie worked alongside multiple award-winning architects. She recently relocated to the Pacific Northwest, bringing with her a passion for integrating quality form and responsible, sustainable function. Moreover, Stephanie’s background in business administration enables her to evaluate form and function in the broader context of clients’ competing interests in schedule and budget considerations.