When there are curling shingles
Presence of algae which can eat through the shingles
If there is mold in the attic
You can add curb appeal to the home with an updated shingle color.
Improves the home value
Potential energy bill savings
Quality roofing replacement is designed to last for a lifetime
If your roof is old then roof replacement can help in lowering energy bills. An attic overheating during the summer is a sign of inadequate ventilation from under performing roofs which can cause the HVAC system to work in overdrive. Getting a new roof installed is proven to lower energy bills with ventilation and materials that prevent excess drafts and leaks.