Day 2 – Wednesday, February 27, 2019

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7:00–8:15
Recommended Window Installation in High Performance Walls
Erick Filby, Marvin Windows and Doors

This hands-on demonstration will feature a mock-up wall with a rough opening and weather resistive barrier. Various high-performance wall types will be compared and contrasted to a standard detail. The wall will be used to present methods of installation, installation material choices, and their interface with the wall. Recommendations for sealants and flashing products will be discussed. Recommended procedures to cut the weather resistive barrier (WRB) and apply sill pan flash will be demonstrated. The five types of flashings will be introduced, including an explanation of their importance to water management. Current general installation guidelines will be followed.

8:30–10:00
6 Layers: A Framework for More Sustainable Building
Rachel Wagner, Through design

You’re familiar with or practicing integrated design (the house as a system) in your work. You want to design or build in a more ecologically responsible way. This session presents a paradigm that can be used to guide and inform an integrated, systems-oriented approach to more sustainable design and construction. The theory of shearing layers was created by British architect Frank Duffy, and described in Stewart Brand’s book “How Buildings Learn: What Happens After They're Built.” Come learn about the 6 layers, why they matter, and how this theory can provide a meaningful framework for designing and building more sustainably.

10:30–12:00
Zeroing In: The Path to Net Zero Energy May Not Be What You Think!
Patrick Huelman, University of Minnesota

A focus on building enclosure and mechanical strategies and systems for high-performance Zero Energy Ready Homes. While solar systems can be added later, it is not as easy to change the efficiency of the building enclosure or equipment. It is critical to find cost-effective approaches to get the loads low and efficiencies high. This will keep the cost of a renewable energy system -- today or in the future -- more affordable, too. But beware, approaching "zero" is not simply adding more of the same, it requires new approaches for many things including design, ventilation, make-up air, and humidity control.

1:00–2:30
The Passive House Building Energy Standard in a Very Cold Climate
Tim Eian, TE Studio, Ltd.

Learn from examples from over a decade of new construction and retrofit projects showcasing assemblies, materials and systems, and how they are put together to meet the Passive House building energy standard in our very cold climate zones.

3:00–4:30
Moisture and Water Control - 3 Methods to Evaluate the Risk of Your Wall Assemblies
Rolf Jacobson, Center for Sustainable Building Research, University of Minnesota

As insulation and air tightness levels continue to increase, the importance of good moisture management and design in our building assemblies has become an imperative. This session will provide a crash course on the building science principles of moisture and heat flow in above grade wall and roof assemblies. It will then dive into a discussion and evaluation of some of the key methods commonly used to investigate moisture risk: a qualitative moisture assessment, a static Glaser analysis, and a dynamic WUFI hydrothermal simulation. We will discuss when these assessments are appropriate and how they can be used to the greatest benefit.