After 39+ years in the business, Darrel Henderson has decided to hang up his clipboard and semi-retire. He must have roofing in his DNA, as his ancestors installed slate roofs in England back in the 1800’s. He was on the Ontario Chapter Membership Committee in 1997 and was the secretary from 2000-2001. He has lectured for RCI from 2002 until the present day, and he was involved in the creation, along with John Kataila, of the Fire-rated Roof Module for the Building Science Specialist of Ontario (BSSO) Program at the University of Toronto.
Henderson was introduced to roofing by Bruce Russell at Tremco in 1978, and to roof consulting by Doug Fishburn. He still issues the URL lists that began in 1999 and 2006 to his contacts in the industry. He can be contacted at rooftech_services@yahoo.ca.
Senior Building Envelope Specialist Charles Sietmann, RRO, CCCA, CIT, with Building Technology Consultants, Inc., Arlington Heights, IL, has recently become a Certified Adhesive Anchor Installation Inspector through the American Concrete Institute (ACI). Sietmann is a Consultant Affiliate member of RCI and a member of the Document Competition Committee and the Chicago Area Chapter.
T.R. Hernacki, PE, has been hired by Amtech’s Engineering Services Division. He is certified by the Structural Engineering Certification Board, has achieved Project Management Professional designation, and has over 30 years of experience in structural repair design, fall protection system testing and design, historic renovation, building envelope evaluation and testing, code compliance, wind and impact protection engineering, and product evaluation engineering for structural code compliance. Hernacki is a Consultant member of RCI and was previously employed by Facility Engineering Associates PC.
David Cook has joined TRC’s Building Sciences & Industrial Hygiene Practice as a senior building envelope consultant and office practice leader in its Arlington, TX, office. With more than 16 years of experience, Cook was most recently a senior project manager for Terracon Consultants. He is Registered Roof Observer and Professional member of RCI, a Certified Level II Infrared Thermographer, and a member of the AIA. He may be reached at 512-673-6121 or cook@trcsolutions.com.
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