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Course Description: AEC Daily: What Is Fundamentally Wrong with ISO R-Value and How Do We Fix It?
Understanding the performance of building materials in real-world conditions is key to a successful building design. Recent studies have shown that the commonly reported R-values of polyisocyanurate foams at room temperature may overstate their real-world performance in cooler temperatures, potentially resulting in gaps in designed building enclosure assembly performance and quality. Through a theoretical framework and empirical data, this course shows that optimized polyisocyanurate foam insulation results in better performance, leading to improved energy savings and reduced potential for condensation. Participants are encouraged to explore innovative insulation materials, understand differences between them, and match optimal materials to specific applications while meeting modern construction codes and regulations. By matching the right insulation materials to the application, architects can contribute to energy-efficient and cost-conscious construction practices and help buildings reduce their impact on the environment.
Observe and discuss the temperature-dependent insulation performance of polyisocyanurate foams that impacts energy efficiency and condensation potential.
Identify fundamental causes of temperature-dependent insulation performance behavior in polyisocyanurate foams.
Reference comparative computational assessments of wall and roof assemblies using polyisocyanurate foams with different R-values.
Discuss the empirical assembly data supporting the computational models that describe the performance of these assemblies.