Credits: 1 AIA LU/HSW; 0.1 ICC CEU; 1 IIBEC CEH; 0.1 IACET CEU
Navigating the world of PVC roof membranes can be complex due to two different ASTM specifications (ASTM D 4434 and ASTM D 6754) and variations in membrane composition, particularly those including the KEE plasticizer. When you factor in differences in chemical resistance performance, accelerated aging testing, and overall durability expectations, choosing the right membrane can feel like a real challenge. This presentation is designed to cut through the confusion. It will provide clear definitions and performance insights for PVC, PVC KEE, and KEE membranes. Attendees will leave with precise, actionable specification language to ensure the roofing membrane installed on their project delivers the intended, long-term performance.
Learning Objectives:
- Differentiate between PVC, PVC KEE and KEE membrane types (ASTM D 4434 Type II, III, and IV) and ASTM D 6754) based on composition and properties.
- Explain the critical role of plasticizer in PVC membrane performance, including its effect on long-term performance and chemical resistance.
- Compare accelerated aging, chemical resistance and impact resistance results from various membranes to understand the differences.
- Identify performance specification language for use in specifying the best PVC or PVC KEE membrane for a given project.
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