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 31531 - Understanding The Long-Term Durability of Roofing Underlayments (Steep Slope) $18.00   
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Format: MP3 Audio Download

Presenter:John Johnston

This session provides an overview of the environmental challenges faced by roofing underlayment's, focusing on resilience to UV light, thermal oxidation and resistance to moisture.? This session will also cover how the building code requirements and ASTM test methods may, or may not predict the durability of roofing underlayment's. Session material is for steep slope applications. ?This session is presented at an intermediate level.

1. Identify how roofing underlayment's maintain their physical properties over time.?
2. Define the building code requirements for roofing underlayment's.?
3. Identify what it means for a product to pass the ASTM protocols specified in the building code.?
4. Recognize the environmental challenges experienced by roofing underlayment's, which limits their lifespan.


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