Spring Session 2018
Understanding Insulation Performance: Fact vs. Fiction
This 7 hour, 7 CPD credit course is an in-depth examination of the extensive insulation testing undertaken at our Centre of Excellence in Port Coquitlam. There are many choices for builders to consider as they explore their options for advanced energy performance in basements, walls and roofs necessary for conformance with the targets set by the Step Code for Part 9 homes and buildings. Builders must avoid unintended consequences that can arise from the reduction in energy flow through the building enclosure and the resultant reduction in drying potential that has always helped to protect structures with lower energy performance. It is also important to note that some changes in the manufacturing of some insulation materials in response to environmental impact has apparently altered the performance of some old, familiar materials.
This focused presentation will provide valuable insight into the true performance of fibrous insulations, rigid foam and mineral fiber products, and polyurethane spray foam insulation in various densities. Results of testing will be presented using graphs, photo’s, video, and 3D CGI graphics modelling to ensure clear explanations of the findings and easy-to-understand conclusions will be taken away by all attendees. Much effort has gone into simplifying the conversation so that attendees will leave informed and not confused.
The testing of fibrous insulation (batt and blown fiberglass, mineral fibre and cellulous) included guarded hot box testing and internal thermal scanning to identify anomalies with various fibrous insulation assemblies. The purpose was to predict real insulation performance at increased depths and to establish if convective short-circuiting within the insulation would develop and how this might be controlled.
The testing of rigid foam used extreme conditions to establish greater understanding of dimensional stability, thermal bridging at joints, true thermal performance across service temperatures, and saturation under prolonged wetting. The testing of Spray Polyurethane foam insulation sheds new light on adhesion concerns, environmental influences during application and the effects of mechanical alteration (scarfing, racking and load deflection of the structure).
The presentation will offer insights, highlight concerns, and identify new testing recommendations arising from this body of work. This seminar is for anyone looking to truly understand insulation performance.
Why take this session?
Our team constantly seeks out information and testing from around the world. We work closely with some of the biggest research projects in Building Science and our reputation as the Guardians of Part 9 is growing throughout North America.
The engineering and architectural communities drive much of the research on performance and construction methods. The work done in the research completed by the professions around the world weaves in and out of universities and private practice yielding some great examples of technology transfer. The biggest hurdle in our industry (in our opinion) is that the driving research is often completed for large, complex, Part 3 buildings designed under the watchful direction of professionals and is not necessarily responsive to the prescriptive code approach for small structures under Part 9.
This session is a strong example of very important research being directed specifically at technology transfer for Part 9 homes. Attending this session will provide clear direction on what the code intends for small structures and how ramping up energy efficiency along with the practical challenges of residential construction can proceed with confidence in the final code compliance and the long term efficiency and durability of the home.
This research yielded results that have not been previously studied and applying these results will result in better homes.