February 1, 2016

The Effective Thermal Performance of the Building Enclosure: Exterior Walls

1 HSW, GBCI, Credit
February 11, 2016

This BEC-GD Monthly Program features presenter Maddy Parrott, of Cascadia Windows.

Doors Open: 4:30 PM.
Program begins at 5:00 PM.
Where: Schoolcraft College’s Vis-Ta-Tech Center.
Admission: $5.00 at the door.

Register Here

Overview
Today, many new buildings must meet the ASHRAE 90.1 requirements for thermal performance. This is a tough objective, since documented proof is required. Effective R-values must be met, not just nominal values, which means that high conductivity materials that cause thermal bridges must be considered in the modelling and calculations.

Often, meeting ASHRAE’s challenging prescriptive compliance is not even enough; some designers look to walls to make up for thermal performance shortfalls from other parts of the building enclosure – such as high glazing area percentages. Many of today’s conventional wall assemblies fall short of even basic compliance, causing larger, thicker, and more costly assemblies than ever before.

Learn what current wall assemblies are getting closest to the target performance levels, what the code- prescribed targets are for your region, and what some innovative companies and designers are doing to solve this issue, both with conventional and proprietary approaches, while saving cost at the same time.

Learning Objectives
* Understand what building types are subject to the ASHRAE 90.1 Thermal Performance standard.
* Understand the compliance paths available for the ASHRAE 90.1 standard.
* Understand the non-linear effect that highly conductive wall components have on the total effective wall R-value.
* Understand how current conventional wall assemblies compare from a thermal point of view.
* Identify aspects of exterior wall detailing to target for thermal improvements.
* Become aware of several conventional and state-of-the-art proprietary approaches that have been used in the past year to solve these issues and reduce costs.
Speaker Info
Maddy Parrott is an up-and-coming authority in the building envelope field, with a highly varied background in both work and life experience. She has a passion for design solutions to problems arising from the current unsustainable nature of traditional building practices.

Maddy graduated Queen’s University in 2013 with a Bachelor of Science in civil engineering. After summer work experience in the structural division of AMEC, she quickly realized that the already mature field of civil engineering was not her passion. In the spring of 2014, she began the BCIT Master of Applied Science in Building Science program. Her thesis project involves designing, engineering, modelling, and analyzing a net-zero energy tiny house within the confines of a shipping container to be used anywhere in Canada.

She joined Cascadia Windows in 2015 to apply her studies in a hands-on role of Technical Representative for the Cascadia Clip. This role allows her to serve clients and consultants in technical sales and support, and also contribute to Cascadia’s internal research and development of new technologies. In less than a year, Maddy has presented to dozens of architectural firms across Canada and the US, and continues her passion of educating others on the benefits of energy conservation in buildings.