What are the best roof replacement options?
Short answer. For most Georgia homes the best value is a full tear-off with architectural asphalt shingles installed as a complete manufacturer system, with new underlayment, flashing, vents and ridge caps. Impact-resistant Class 4 shingles are worth considering in hail-prone areas, standing seam metal is a longer-lasting premium choice, and overlays or partial replacements are budget options with real tradeoffs.
Material options
- Architectural asphalt shingles: the most common choice in Georgia, with good looks, strong wind ratings and broad warranties. They commonly last around 20 to 25 years in Georgia heat.
- Class 4 impact-resistant shingles: tested under UL 2218 and sometimes eligible for an insurance discount. Better odds in hail, not hail-proof.
- Designer shingles: slate or shake looks, heavier, and more expensive.
- Standing seam metal: concealed fasteners, long life, higher cost.
- Exposed fastener metal: less expensive metal that needs periodic screw maintenance; more common on porches and outbuildings.
- 3-tab shingles: shorter life and lower wind ratings, and largely phased out for most homes.
- Tile and slate: heavy, need a structural check, and rare in Georgia subdivisions.
Approach options
- Full tear-off: the best approach; it exposes the decking and is required if two layers already exist.
- Overlay: cheaper up front, but it hides decking problems, adds weight, shortens shingle life, and is limited by code.
- Partial replacement: one slope at a time, with matching problems on visible sides.
Upgrades worth considering
- Synthetic underlayment and membrane in valleys and at walls.
- Balanced soffit and ridge ventilation.
- Lighter shingle colors on sun-baked slopes.
Robust Roofing's shingle options page shows its lineup. Compare architectural vs 3-tab, impact-resistant shingles and metal roofing in Georgia.