After the Tarp: What Makes a Lasting Shingle Repair?
Bulletin revision: March 22, 2021
Why tarp nail holes and loose-granule patches need more than a cosmetic touch-up after a storm.
Emergency protection buys time. The next step is a repair scope that accounts for both the storm damage and the temporary work.
Two shortcuts GAF warns against
Covering damaged areas with granules: GAF calls this practice “sugaring” and does not consider it a permanent repair.
Caulking through-shingle tarp holes: Shingles punctured by tarp fasteners require replacement under the bulletin’s guidance. A dab of sealant is not the permanent solution.
The surrounding shingles count too
GAF explains that storm damage can include cracks, exposed mat, granule loss and broken seals. Some damage is difficult to see. Individual replacement may be possible, but the surrounding area needs assessment. Repair work can also disturb adjacent nails and seal bonds; the repair procedure must address those details.
Ask for these three photos
Before: The damage and tarp attachment points, with a wider view showing their location.
During: The opened repair area before it is covered.
After: The completed repair from a comparable angle.
Keep emergency work separate from the final scope
Ask the estimate to name which shingles will be replaced and how disturbed neighboring shingles will be handled. A temporary weather-protection invoice and a permanent repair proposal serve different purposes.
This guide explains GAF’s technical guidance. It does not promise a warranty or insurance outcome for a particular roof.
Related guide
Explore the connected roof detail
Manufacturer references
GAF R-126: Replacement of Storm-Damaged Shingles (March 22, 2021).
Prepared by Barnes N’ Roofs. Technical sources reviewed October 14, 2026. Manufacturer requirements vary by product; this homeowner overview does not replace current installation instructions or applicable local requirements. Project photography is illustrative and does not establish the shingle brand or a concealed condition.
GAF technical bulletin reference
Bulletin revision: March 22, 2021. This is the date of the manufacturer source, not a claim that this website guide existed on that date.
Read GAF: Replacement of storm damaged shingles
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.