Research
IBHS tests the impact resistance commercially available asphalt shingles using both 1.5- and 2.0-inch diameter laboratory manufactured hailstones using the IBHS hail impact testing protocol. Laboratory and field research by IBHS has shown that the impact energy and material properties of laboratory hailstone sizes can be directly related to typical natural hailstones in non-wind driven conditions.
While these tests do not exactly replicate natural hailstone impacts, they provide a way to compare relative product performance in controlled, repeatable laboratory tests.
The Relative Impact Resistance of Asphalt Shingles report, describes results from tests on 22 different asphalt shingle products produced by five different manufacturers. The additional reports support and expand on this research.
Other Shingle Research Results:
- Hail Impact-Resistant Shingle Performance Ratings
- Roof Aging Farm: 5-Year Shingle Performance (Fire, Wind & Hail)
Insights
[Members Only] Asphalt Shingle Hail Impact Performance Guide
Asphalt Shingle Hail Impact Performance Guide – At A Glance
Full
Dataset
Performance Graphs
Additional Insights
[Members Only] Impact Resistance of Asphalt Shingles: Panel and Investigator Variability
[Members Only] Water Leakage Vulnerabilities for Shingles with Hail Damage
[Members Only] Impact Resistance of Synthetic Composite Shingles
Relative Impact Resistance of Asphalt Shingles
[Members Only] Impact Resistance of Asphalt Shingles by Manufacturer: UL 2218 Impact Tests
[Members Only] Asphalt Shingle Durability
