Construction of new energy efficient buildings adhering to evolving model building code requirements is a recent development that is gaining momentum.Polyisocyanurate foam insulation (PIR) is a commonly used thermal insulation in the building and construction (roofing,exterior and interior wall assembly,attic,crawl spaces etc) segment.New and existing insulation products need to achieve flammability requirements while maintaining a robust sustainability profile.This study evaluates the development of Class A sheathing foam product in accordance to the model International Building Code Requirements (IBC-2018).Utilization of analytical tools and lab-scale test methods as a route to the development of physical,thermal,fire and other related properties benchmarked against ASTM C-1289 and other code related requirements will be reviewed.
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