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Conference Agenda

Session 1: Wall Coating Performance

Chairman: Ken Trimber, KTA-Tator, Inc.

Introduction to WUFI® Software | 8:00 a.m.-9:00 a.m Software
Presenter: Andre Desjarlais, Oak Ridge National Laboratory

Chances are you've heard about WUFI®, a software program used for evaluating heat and moisture movement in building envelopes — but how does it work?

"Hygrothermal modeling using WUFI increases the model user's capabilities of understanding and predicting how the building envelope component will perform under the highly transient conditions it will be exposed to in real life," says Andre Desjarlais, program manager for the Building Envelope Systems Research Group at Oak Ridge National Laboratory (ORNL).

Desjarlais will cover basic building envelope moisture design principles and how WUFI Pro uses heat and mass transfer fundamentals, along with the necessary input data, to predict hygrothermal performance and make mold-growth predictions.

Participants will see a demonstration of the software and walk away knowing how to perform transient heat and moisture calculations, key material properties that govern heat and mass transport, and how to translate software output into practical results.

The Effect of Permeance on Exterior Wall Coating Performance | 9:00 a.m.-10:00 a.m.
Presenter: Kevin Brown, KTA-Tator Inc.

A number of professionals might have predictions on how many times a building can be repainted, but what is that forecast based on — and is it realistic?

Kevin J. Brown, technical director for KTA-Tator, will tackle that question, exploring how additional coats of paint applied to the exterior of commercial buildings impact the breathability of the film, as well as the dangers of the resulting trapped moisture. images As permeance of the film decreases, moisture trapped in wall systems can cause all sorts of damage, from biological growth to coating delamination.

To illustrate the process of determining the number of times a building can be repainted before permeance reduction may become problematic, Brown will share thermodynamic modeling results for five identical buildings in five different parts of the country. In this way, he will illustrate the value of thermodynamic modeling when specifying coatings for building walls, how location influences coating selection and repainting, and the potential long-term cost savings of selecting the correct coating system for the geographical location.

Panel Discussion: Performance on Exterior Walls of Specific Coating and Water Repellent Brands | 10:15 a.m.-12:15 p.m.
Moderator: Kenneth A. Trimber, KTA-Tator Inc.
Panelists: Jennifer Crisman, The Euclid Chemical Company; Chuck Duffin, Sto Corp.; Michael Edison, Edison Coatings; Ed Telson, Sto Corp.; Al Morris, Prosoco; Christopher Perego, BASF Corporation; and Tom Tipps, KEIM Mineral Coatings of America

Eight building scenarios involving the use of coatings and water repellents on CMUs will be presented to a panel of supplier representatives. The panelists will identify the benefits of their product(s) in addressing the needs of a variety of buildings that present a range of challenges. Scenarios include:

  • New building in Pittsburgh to receive water repellent, with no unique challenges;
  • New building in Pittsburgh to receive coating, with no unique challenges;/li>
  • New building in Pittsburgh to receive water repellent or coating, but damp walls present a challenge;
  • New building in Pittsburgh to receive water repellent or coating, but cold temperatures during application present a challenge;
  • Maintenance of existing coatings on a building in Pittsburgh, with no unique challenges;
  • Maintenance of existing coatings on a building in Pittsburgh on which existing paint is blistering and peeling and walls are damp;
  • Maintenance of aged water repellent (siloxane) on a building in Pittsburgh where a challenge comes from the need to retain the color when removing efflorescence, calcite stains and lime prior to installing new water repellent; and
  • Maintenance of aged water repellent (siloxane) on a building in Pittsburgh where the need to retain the color when removing efflorescence, calcite stains and lime prior to installing water repellent, as well as damp walls, present a challenge.


Lunch: 12:15 p.m. -1:15 p.m.


Session 2: Air Leakage and Air Barrier Performance

Chairman: David de Sola, 3iVE LLC

Modeling Building Envelope Energy Efficiency and Developing a Web-Based Energy Savings Calculator for Building Envelope Air Tightness | 1:15 p.m.-2:15 p.m.
Presenter: Andre Desjarlais, ORNL

Uncontrolled heat, air and moisture transfer through the building envelope has a significant impact on energy usage — but is it possible to estimate the savings that can be achieved by increasing air tightness?

A simple-to-use online energy calculator tool allows building professionals to estimate the energy and monetary savings associated with the deployment of an air barrier system. Desjarlais will explain the use of this calculator, developed by ORNL, along with quality assurance and installation requirements for liquid-applied air barriers.

From this session, attendees will better understand how whole building computer simulation tools handle conduction and air tightness of buildings, a methodology for developing a database of simulation runs to extract air tightness benefits, and more.

Quality Assurance and Installation Requirements for Liquid-Applied Air Barriers | 2:15 p.m.-3:00 p.m.
Presenter: David de Sola, 3iVE LLC

A poorly executed material application can undermine even the best material's ability to provide a benefit, says presenter David de Sola, a LEED-accredited professional specializing in building design and construction and founding principal of 3iVE LLC.

What are the key environmental and application challenges when designing and constructing a robust air barrier for a building envelope? What observation and testing protocol features can help verify that air- and vapor-performance objectives have been met? De Sola will address these questions, suggest ways to integrate design and exterior performance goals and review basic building science principles related to materials and assemblies.

"Air barriers are playing a growing role in new buildings in terms of controlling energy use and helping to improve indoor air quality and environmental separation,� de Sola notes. "I'm looking forward to highlighting the state of the industry with respect to materials as well as design and field considerations, and shedding some light on this typically hidden-away performance layer."

Panel Discussion: Fluid-Applied Air Barriers Product and Installation Considerations | 3:30 p.m.-5:30 p.m.
Moderator: David de Sola, 3iVE LLC
Panelists: Chuck Duffin, Sto Corp.; Bill Dunn, GCP Applied Technologies; Tyson Lodge, Sto Corp.; Benjamin Meyer, DuPont Protection Solutions; David R. Pennington, Prosoco; Todd Skopic, Henry Company; and Russell Snow, W.R. Meadows

Eight more building scenarios, this time involving the use of fluid-applied air barriers, will be presented to a panel for discussion. Supplier representatives will provide technical insights for decision-making when it comes to different building requirements, such as:

  • New academic building in Pittsburgh with no unique challenges;
  • New academic building in Pittsburgh faced with challenges including a skilled labor deficit, variable installation temperatures, an accelerated schedule, material exposure and stringent testing requirements taking place at the end of the project;/li>
  • New CMU building in Pittsburgh of single-wythe construction, with difficult field conditions;
  • New high-design building in Pittsburgh with extremely challenging construction;
  • Renovation of stone church at Ivy League college in Northern New Hampshire with challenges such as establishing code performance requirements on an existing structure in an extreme climate;
  • Courthouse in Jacksonville, Florida, facing challenges from the warm, wet climate and wet installation conditions;
  • Olympic-sized swimming pool and athletics facility in Seattle with challenges including a humid climate and mold issues; and
  • New climate studies library in Yuma, Arizona, with challenges resulting from extremely hot installation and service conditions.


Attendees will qualify for 8 AIA learning credits for full day participation or 4 AIA learning credits for half day participation.




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