To comply with the International Energy Conservation Code (IECC) requirements for insulating above-grade exterior walls, building professionals can follow one of two commonly used prescriptive methods
Question: How does ASTM C 1289 classify foam insulation? Answer: ASTM C 1289 is a standard developed by ASTM members that classifies the design requirements for a specific material, product, system and service. All faced rigid polyisocyanurate manufacturers are required to manufacture and test to the standards of ASTM C1289. This standard classifies faced polyiso […]
How does the test method work for determining R-value of a building product?
Question: Explain why there may be differences in ASTM E84 flame spread and smoke developed values of foam insulations. Does a lower ASTM E84 value always convey better fire performance? Answer: Some insulation products may have a lower flame spread, but this does not necessarily imply that the product is more fire-resistant. It is important […]
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