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Introduction to Urethanes in Construction
Program number AIA001
Course Description
This program commences with an overview of insulation systems, investigating different types of insulation, their performance, and how they compare to urethane technology. Particular attention is then given to urethane foams, exploring their development and providing an opportunity to examine samples of open-cell and closed-cell urethanes. An in-depth look at the material itself considers plastics, densities, blowing agents, and zero ozone depletion potential (ODP) closed-cell urethanes. The environmental advantages of the improved formulations of Freon, an essential blowing agent, are elaborated on. Basic code issues involving fire protection, ventilation, and R-Value drift are discussed. Health, safety and welfare issues are dealt with as the applied uses of urethane foams in thermal envelopes are explained. The purpose of the thermal envelope and how it functions properly is elaborated on, providing the context for explaining how urethane foams are installed and how quality-control measures are executed. Air quality exposition focuses on fresh air from active and passive ventilation systems; make-up air for combustion appliances; and indoor air quality problems from the envelope cavity itself (condensation, vermin, fibers, and out-gassing). A slide presentation and demonstration of specialized testing equipment supplement this program. Case studies are included to demonstrate various field applications of urethane foam.
Henri C. Fennell is President of Building Envelope Solutions, Inc. & FOAM-TECH, North Thetford, Vermont, USA.
Contact us for more information and to schedule a course.
