Category Archives: E-Newsletter

The System That Cried Wolf: When to Believe the Fire Alarm

by Mike Lehner, P.E. This article is part of Wood Harbinger’s newsletter series. One of Aesop’s famous fables is “The Boy Who Cried Wolf.” If you recall, the story tells of a young shepherd boy who cried out that a wolf was chasing the village sheep, and the villagers came running to help him, only […]

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The Fire Protection Obstacle Course Part 2: Five More “Gotchas” That Can Make or Break Your Project

by Mike Lehner, P.E. This article is part of Wood Harbinger’s newsletter series. In a previous edition of this newsletter, I introduced five “gotchas” related to fire protection systems that could wreak havoc on your project. This list, of course, is far from comprehensive, so I thought I’d follow up with a few more “gotchas” […]

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Cradle to Grave Sustainability: Electric Vehicle Batteries

by Shaun May, EIT, CEM, and Mitchell Hughey This article is part of Wood Harbinger’s newsletter series. An oft-undiscussed element of sustainability in the built environment is the “cradle to grave,” concept—that is, the sustainability factor of not only a finished product, but the impact throughout the lifespan of all products and materials, from production, […]

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Electricity vs. Natural Gas: The Energy Showdown

by Paul Greenwalt, EIT This article is part of Wood Harbinger’s newsletter series. Residential, commercial, and industrial users have choices about the energy sources they use for building systems and processes, such as HVAC and water systems, refrigeration systems, manufacturing/production processes, cooking, and clothes drying. Natural gas and electricity are the two main options for […]

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Commissioning for Design-Build Project Delivery

by Nick Baker, P.E., CCP, GPCP, LEED AP BD+C and Jeff Yirak, P.E., CCP, GPCP, LEED AP BD+C This article is part of Wood Harbinger’s newsletter series. A few years ago, Nick Baker wrote an article outlining how different project delivery methods affect the commissioning provider’s relationships with the project owner, design team, and contractor. We […]

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Back to Basics for Energy Code-Required Commissioning

by Shaun May, EIT, CEM and Jacob Odell This article is part of Wood Harbinger’s newsletter series. The latest Washington State Energy Code (WSEC 2015) requires Fundamental Commissioning performed by a Certified Commissioning Professional. For many of our clients, commissioning isn’t a new concept—projects pursuing LEED require Fundamental Commissioning, so if you’ve participated in a […]

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The Many Aspects of Fire Protection Design Analysis

by Mike Lehner, P.E. This article is part of Wood Harbinger’s newsletter series. The fire protection discipline covers a broad spectrum of systems and building design considerations. A fire protection engineer is knowledgeable about conventional fire suppression and fire alarm systems, egress systems (exits, exit door hardware, emergency lighting, exit signs, and wayfinding signage), building […]

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Tricks of the Trade for Hydraulic Calculation

by Mike Lehner, P.E. This article is part of Wood Harbinger’s newsletter series. NFPA 13, the standard for sprinkler system installations, requires that the sprinkler system designer perform a hydraulic calculation to verify that the system is sized correctly for its specific application. This involves determining the total friction losses in the system and ensuring […]

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Simplification for Sustainability: Power over Ethernet (PoE)

by Bob Eastman This article is part of Wood Harbinger’s newsletter series. A term heard more and more in the Information and Communication Technology (ICT) system world is “Power over Ethernet,” or PoE. PoE is a network technology that uses a single network cable from a PoE network switch to deliver both power and network […]

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