SYMPOSIA PAPER Published: 01 January 1999
STP13299S

Standards for “Oversized” and “Severe” Hail Resistance of Elastomeric Coated Sprayed Polyurethane Foam (SPF) Roofing Systems

Source

“Severe” (golf ball size) and “oversized” (baseball to softball size) hail has caused millions of dollars of damage to roofing systems. Facility managers and insurance carriers with extensive damages to their roofs are concerned with the performance of sprayed-in-place elastomeric coated SPF roof systems. Results of this research effort include: 1. Analysis and identification of performance factors of different types of elastomeric coated SPF roof systems for their “severe” and “oversized” hail resistance capability. 2. Identification of the hail resistance of SPF roof systems under normal and freezing temperatures. 3. Use of documented performance information to confirm hail resistance levels determined by static testing. 4. Identification of the validity of current industry information on hail resistance of elastomeric coated SPF roof systems. 5. Proposal for an industry process to reduce the risk of hail damage to SPF roof systems.

Author Information

Kashiwagi, DT
Performance Based Studies Research Group, College of Engineering and Applied Sciences, Arizona State University, Tempe, AZ
Pandey, MK
Performance Based Studies Research Group, College of Engineering and Applied Sciences, Arizona State University, Tempe, AZ
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Details
Developed by Committee: D08
Pages: 73–90
DOI: 10.1520/STP13299S
ISBN-EB: 978-0-8031-5399-8
ISBN-13: 978-0-8031-2494-3