Roof Repair vs Replacement Savannah

Repair when: damage is localized (under 30% of roof), roof is under 15 years old, structure is sound, and cumulative repair costs haven't exceeded 30% of replacement. Replace when: damage is widespread, roof is over 20 years old, recurring leaks persist after repairs, or an inspection reveals decking damage.

Generally no for major repairs. A 20-year-old asphalt roof in Savannah's climate is nearing end of life. Major repairs may buy 2–3 years but won't address underlying aging. However, minor repairs (a few missing shingles after a storm) are worthwhile to prevent immediate water damage while you plan replacement.

Minor repairs (replacing a few shingles, resealing flashing): $200–$800. Moderate repairs (valley or section work): $1,000–$3,000. Full replacement for a 2,000 sq ft home: $11,000–$17,000 for shingles. If cumulative repairs approach $4,000–$5,000, replacement becomes the better financial decision.

Sometimes — but a full tear-off is often the better or required call. Georgia follows the 2018 IRC (Section R908), which allows no more than two roofing layers, so a single overlay is only permitted over one existing layer that lies flat on a sound, dry deck. A tear-off is required when there are already two layers, the deck is water-soaked or deteriorated, or the covering is slate, clay, or tile. In Coastal Georgia's humidity, tear-off is usually smarter anyway: it's the only way to inspect and repair the deck, improve deck attachment, and avoid adding dead weight — and an overlay can void some manufacturer warranties, so verify your shingle warranty first. (Source: IRC R908; ARMA.)