Hail can fracture shingles and loosen granules, with some effects becoming more visible over time. Owens Corning recommends professional inspection after a storm
Owens Corning technical bulletin: Hail Damage Technical Bulletin.
What this means for your roof
Hail can fracture shingles and loosen granules, with some effects becoming more visible over time. Owens Corning recommends professional inspection after a storm. Impact ratings describe laboratory performance and do not mean a shingle is hail-proof or that hail damage is covered by the manufacturer’s warranty.
A useful question for your contractor
Ask for roof-specific photographs and findings rather than relying only on nearby storm reports.
Ask for the answer to be tied to the actual roof condition and the exact product being installed. Keep the agreed repair or installation detail with your estimate and project photos.
Bulletin dated: February 2025. The date shown identifies the manufacturer document used for this summary.
Read Owens Corning: Hail Damage Technical Bulletin
This homeowner summary explains the cited bulletin. The complete manufacturer document and current product instructions govern the installation details. A requirement for one manufacturer or product should not be transferred to another without checking.