Roof replacement vs reroof: which should you choose?

A quick decision checklist

A full replacement is the better choice if any of these are true:

• There are already two layers on the roof.
• Shingles are curled, cupped, cracked or missing in many places.
• You have had leaks, attic stains or soft spots.
• The roof has hail or wind damage that an insurer may pay to repair.
• You plan to stay in the home long term.
• You want the manufacturer's enhanced warranty options, which often have conditions about the deck and installation.

The real cost comparison

An overlay saves the labor and disposal of a tear-off. But the savings are partly borrowed from the future: the next roofer will remove two layers, and any rotted decking left in place keeps deteriorating. A second layer also holds more heat, which works against shingle life in a Georgia summer.

Resale and inspection

Home inspectors note multiple layers, and buyers often ask about them. A single new layer with documented decking repairs is easier to explain than an overlay of unknown condition.

When an overlay can make sense

One flat, dry, sound layer, a sound deck, no storm damage, and a homeowner who expects to sell soon or needs the lowest upfront cost. Even then, flashing and edges should be handled properly. The detailed pros and cons are in roofing over existing shingles, and the cost factors in roof replacement cost in Georgia.