AMBE - Key Persons


Alex Desy

Job Titles:
  • Office Manager

Dane Johnston

Job Titles:
  • Building Envelope Consultant
Dane has been working as a building envelope consultant at AMBE Ltd for 6 years. Over his time at AMBE. He has been involved in a wide range of building envelope projects and inspections such as roof replacement, window glazing, below grade waterproofing throughout the country spanning various climate regions including Puerto Rico. Dane is the lead surveyor at AMBE and conducts annual building condition assessments on over 200 properties each year. He has been a member of IIBEC for over 5 years and has completed over 65 hours of continuing education courses. He is currently working to obtain his RRO (Registered Roofing Observer) certification.

Jamie I. LaVanier

Job Titles:
  • Senior CAD Specialist

Michael Keran

Job Titles:
  • Building Envelope Consultant
Mike graduated from the University of Minnesota Duluth in 2014 and has since been working in the commercial construction industry. He has 5 years of experience in commercial construction working with local and national contractors. Mike's experience focuses on single-ply membrane, asphalt roof system installations, wall inspections along with project management and aerial equipment. He also recently completed Drone Pilot Ground School and is heading up AMBE LTD's drone inspection initiative.

Michael P. Fastner

Job Titles:
  • Senior Consultant
Mike brings 18 years of experience in the roofing and waterproofing industry to the AMBE LTD team, 13 of those years as a Building Envelope Consultant. He holds an RRO (Registered Roof Observer) certification from IIBEC (International Institute of Building Envelope Consultants) and continues to develop his technical knowledge through a robust program of CE seminars and courses. Since joining AMBE LTD in 2007, Mike has overseen a myriad of successful high profile and challenging projects at major hospitals, airports, government facilities, skyscrapers, and prominent retail outlets. He is currently AMBE's lead consultant on national accounts, and has been serving clients in all 50 states and Puerto Rico since 2015.

Ryan Wagner

Job Titles:
  • Senior Consultant
Ryan has 14 years of experience as a Project Manager/Estimator in the commercial roofing and architectural sheet metal industry. He has expertise in AutoCAD architectural drafting as well as experience in the entire project lifecycle. Don has over 40 years of experience as an Estimator/Project Manager in the commercial roofing and architectural sheet metal industry. He has worked with energy utility companies, hospitals, private, state, and national clients. His experience includes all facets of the project life cycle, from project negotiation and bid process to ongoing observation and quality assurance.

Sarah Finken

Job Titles:
  • Building Envelope Consultant
Sarah graduated from the University of Colorado - Boulder with a degree in Environmental Design. She has a background in Building Systems and Construction Processes.

Wendell Finken - President

Job Titles:
  • Owner
  • President
Wendell has 30 years of experience in the assessment and construction of building envelopes. Wendell became the sole owner of AMBE LTD. in January of 2020 and is continuing on as the President and Senior Consultant.