Day 2 – Wednesday, February 22, 2017
Envelope
7:00–8:15
Eric Klein, Marvin Windows and Doors
Erick Filby, Marvin Windows and Doors
Harborside 302
The hands-on demonstration will feature a mock construction wall with rough opening, along with an attached weather resistive barrier and window. The instructors will use these materials to illustrate installation concerns—noting level, plumb, square, and true—and to explain the barrier system flashing details. The demo will be used to present methods of installation and to discuss substrates and material choices for sealants and flashings, noting how they interface with the wall. Manufacturer-recommended sealants and flashing products will be discussed. There will be opportunities for questions and audience interaction.
8:30–10:00
Dean Seibert, InSoFast, LLC
Ed Scherrer, InSoFast, LLC
Harborside 302
This session will explore how to build perfect walls by imperfect people to meet the demands of the escalating code changes. There is not just one “right way” to build a perfect wall. We will offer different ways of building an energy efficient wall for retrofit and new construction using continuous insulation or “CI” strategies. Simplicity can be applied universally to any type of interior or exterior wall assemblies or building process. In this imperfect world stressed out by dynamic change, we in the construction industry need to step back from our overly complex processes and unrealistic expectations and simplify what we are doing.
10:30–12:00
Mike Florence, DUXTON Windows & Doors
Paul Kellner, Heritage Window & Door
Harborside 302
Windows are typically named the “weakest link” in the building envelope; to have the biggest impact on the overall building performance, window specifications should be carefully considered. This session will focus on the most effective strategies for improving window and door performance, including the use of insulated frames, selective glazing by orientation, compression rather than sliding seals, window-to-wall ratios, and occupant considerations such as comfort, and access to natural lighting and ventilation. The session also will include a discussion of best-practice installation methods and considerations for Duluth’s local climate..
1:00–2:30
Dave Bohac, Center for Energy and Environment
Harborside 302
An aerosol sealing process has been developed that reduces envelope leakage by 60 to 95 percent. Animations and videos will illustrate how an aerosol duct sealing technology has been adapted to seal envelope leaks. Pre/post air leakage measurements will be presented from three new construction and three existing multifamily buildings that were sealed for a State of Minnesota funded research project. Also, preliminary results will be presented for a DOE Building America project to develop procedures to easily integrate the aerosol sealing technique into standard construction practices and reduce the cost compared to less-effective conventional sealing.
3:00–4:30
Eric Klein, Marvin Windows and Doors
Erick Filby, Marvin Windows and Doors
Harborside 302
This hands-on demonstration will feature a mock construction wall with rough opening, along with an attached weather resistive barrier. A door will also be available for installation and instruction. The instructor will use these materials to illustrate presentation content regarding installation concerns, noting level, plumb, square and true, and to explain the barrier system. The demonstration materials will also be used to present methods of installation, and to discuss substrates and material choices for sealants and flashings and how they interface with the wall. Manufacturer 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.