By Timothy Reinhold and Anne Cope
Field studies, including several post-hurricane assessments of asphalt shingle performance, have helped the Insurance Institute for Business & Home Safety (IBHS) shape its laboratory research program on asphalt shingles.
The core IBHS research facility is a specially designed, open-jet wind tunnel capable of subjecting full-scale, one-and two-story structures to a variety of wind hazards. Small lab capabilities include a wind tunnel that can reproduce ASTM D 3161 and ASTM D 7158 wind tests and extend test wind speeds up to about 180 mph for ASTM D 3161 and about 110 mph for ASTM D 7158. Additional capabilities include replicating UL (Underwriters Laboratories) 2218 impact tests and impacting specimen with lab-created realistic hailstones.
Asphalt shingle research seeks to develop credible relationships between test standards, product ratings and real-world performance in wind and hail events.