Rudy Rutemiller, Petzl and Justin Morejohn, CTSP, QT, UC Davis
Building on their 2025 TCI Expo presentation regarding the potential forces created by slack in climbing systems, Rudy and Justin return to analyze the loads generated during routine tree climbing operations. Utilizing industry-standard force measurement equipment, this session examines the loads created during ascent across various techniques and the dynamic forces generated during swings. The presenters will compare force distribution between different anchoring setups and emphasize why a data-driven understanding of these mechanics is essential for the modern tree worker. Participants will learn practical methods to minimize impact on the tree, reduce stress on anchors, and lessen the physical toll on the climber—all with the ultimate goal of elevating safety and excellence within the industry.
Speaker Bio:
Morejohn, Justin, CTSP, QT – UC Davis
Justin is an ISA Board Certified Master, Utility and Municipal Arborist who is passionate about teaching all aspects of arboriculture. He works at the University of California, Davis, supervising the tree team in caring for the 26,000 trees of the campus urban forest. An ASCA registered consulting arborist and TCIA Certified Treecare Safety Professional (CTSP), he is dedicated to continuing education and safety in everything tree related. He has been climbing rocks for thirty years, climbing trees for twelve years, climbing ice for three years, and is a SPRAT certified rope access technician. Whenever possible, he explores the Sierra Nevada Mountains with his family, and camping under the stars.
Rutemiller, Rudy – Petzl
Rudy is an eleven-year ISA Certified Arborist with an affinity for helping customers solve their challenges. Rudy is Petzl’s national sales manager and works across all work-at- height markets. He previously worked for Bartlett Tree Experts as a groundsperson, climber, plant health care technician, and arborist representative. Rudy is Tree Risk Assessment Qualified, and has held numerous qualifications such as SPRAT Level 1 Rope Access Technician, Certified Treecare Safety Professional (CTSP), Tower Telecommunication Technician, and Qualified Applicator. He is a previous TCIA Speaker and holds a masters of business administration. When not working, Rudy is outside skiing, trail running, biking, cooking, or playing with his six-year-old border collie cattle dog.