Real World Factors Affecting Insulating Power
What real world factors can affect a product’s insulating power?
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Insulation Insights
Complying with the International Energy Conservation Code (IECC)
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
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How Does ASTM C 1289 Classify Foam Insulation?
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 […]
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Testing for R-Value
How does the test method work for determining R-value of a building product?
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Does Lower ASTM E84 Value Equal Better Fire Performance?
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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How Much R-Value Do You Need?
It can be confusing to keep track of your climate zone code requirements due to the fact that the minimum insulation requirements have increased 66 – 100% over the last 9 years.
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Determining Minimum R-Values on Tapered Insulation Systems
According to the 2021 International Energy Conservation Code (IECC), under Insulation Requirements, the building thermal envelope shall meet the requirements of Tables C 402.2 based on the climate zones shown below
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Cricket Design Guidelines for Tapered H-Shield Products
Crickets (aka Saddles or Hogbacks) are a secondary application of insulation – whether over a sloped deck with flat insulation, or over a tapered insulation system.
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Multi-Layered Polyiso Roofing Insulation Recommendations
Mult-layering of Polyiso roof insulation installed with staggered joints offers a number of advantages over a single-layer system.
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