Asphalt shingles are the most prevalent roofing material in Lakewood, California. While durable, individual shingles can suffer wind blow-offs during seasonal Santa Ana wind events, cracking from thermal shock, or granule loss from aging. Performing prompt roof shingle repair protects the vulnerable wood deck underneath.
Common Types of Shingle Damage
Recognizing the specific type of shingle failure helps determine whether spot repair or broader reroofing is required:
- Wind Blow-Off: High winds break the thermal adhesive sealant bonding one shingle to the next, ripping the tab off entirely and exposing roofing nails.
- Curling and Cupping: Over time, the volatile asphalt compounds in shingles evaporate under intense sun, causing edges to curl upward and become brittle.
- Granule Stripping: Mineral granules shield asphalt from UV rays. When granules shed in large quantities into rain gutters, shingles deteriorate rapidly.
- Tearing Around Fasteners: Improperly placed nails can pull through the shingle backing during heavy winds, loosening entire courses.
| Damage Scenario | Recommended Repair Method | Tools & Materials |
|---|---|---|
| Single Lifted Tab (Adhesive Broken) | Reseal under tab with roofing adhesive | Putty knife, asphalt roofing sealant cartridge |
| Cracked Shingle (Still intact) | Slide adhesive beneath crack and press firm | Asphalt mastic, embedded reinforcement mesh |
| Missing Entire Shingle Tab | Break seal on courses above, pull nails, insert new shingle | Flat pry bar, 1-1/4" roofing nails, hammer, matching shingle |
| Multiple Adjacent Blown-Off Bundles | Full section tear-off down to underlayment | New underlayment, multiple shingle bundles, chalk line |
Step-by-Step Shingle Replacement Technique
- Gently Break Adhesive Bonds: Slide a flat roofing pry bar carefully beneath the shingles immediately above the damaged piece to loosen the adhesive seal without cracking adjacent weathered shingles.
- Extract Fasteners: Locate the 4 to 6 roofing nails securing the damaged shingle, as well as the nails in the course directly above it that penetrate its upper strip. Pry up each nail gently and remove it.
- Slide Out Damaged Shingle: Slide the old shingle out of the course and verify that the underlying felt underlayment is tear-free.
- Insert and Fasten New Shingle: Position the replacement shingle into place, align the lower exposure edge with adjacent shingles, and drive new galvanized roofing nails through the designated nail line.
- Apply Adhesive Spots: Apply a quarter-sized dab of roofing cement under each tab to guarantee immediate wind resistance.
For extensive wind-related shingle loss, explore our specialized shingle roof repair services and wind damage remediation resources.
Proper Nailing Patterns: The Key to Wind Resistance
Why do shingles blow off during 45 mph Santa Ana wind storms? In over 70% of cases, the failure traces back to "high-nailing." Shingle manufacturers designate a specific 1-inch nailing strip across each shingle. If roofers nail even 1.5 inches too high, the nails penetrate only the single top shingle rather than pinning both the top and underlying overlapping shingle. Under high wind uplift, improperly nailed shingles pull away easily.
During quality shingle repairs, technicians use a 4-nail standard pattern (or a 6-nail high-wind pattern) using 1-1/4-inch hot-dipped galvanized roofing nails driven flush with the shingle surface. Nails should never be over-driven (cutting through the fiberglass mat) or under-driven (leaving sharp nail heads exposed to puncture overlapping shingles).
Matching Discontinued Shingle Colors
If your existing roof features a discontinued shingle line, replacing damaged sections can result in noticeable color discrepancies. Professional contractors solve this by harvesting undamaged matching shingles from an inconspicuous roof area (such as the rear slope of an attached garage) to perform the visible front-facing repair, and installing fresh, closely matched shingles in the hidden rear section.