Decision guide
Do you really need a new roof?
| What you're seeing | Likely category | Why |
|---|---|---|
| Dark streaking or moss | Cosmetic / cleanable | Algae and moss are appearance and moisture issues, not structural ones. |
| Even, gradual granule loss | Normal aging | Expected as a roof matures. Worth monitoring, not an emergency. |
| A few lifted or missing shingles | Repairable | Usually wind damage. A roofer replaces the run. |
| Leak at a chimney or skylight | Repairable | Almost always flashing, not the field of the roof. |
| Shingles dry, stiff, edges lifting | Evaluate for rejuvenation | The specific aging mode rejuvenation targets — if the deck is sound. |
| Bare patches with exposed mat | Serious deterioration | The shingle's UV protection is gone in those areas. |
| Shingles cracking through when handled | Serious deterioration | Past the point where maintenance changes the outcome. |
| Soft or springy decking underfoot | Structural — replace | The sheathing is compromised. Nothing applied on top fixes it. |
| Visible sagging along a ridge or plane | Structural — replace | Framing or sheathing failure. Needs a roofer, promptly. |
| Active interior leaks or attic staining | Repair or replace | Water is already inside. Every season of delay adds cost. |
This table is a starting point for a conversation, not a substitute for someone getting on the roof.
Three outcomes, not two
Structural failure or severe damage
Rotting decking, widespread missing shingles, or a roof that has structurally failed. Replacement may be necessary, and we will say so.
Localized, repairable damage
Flashing, a run of lifted shingles, a contained leak. Targeted roof repair may be the appropriate and cheaper answer.
Aging shingles on a sound roof
Dry, stiffening asphalt shingles over intact decking with no major leaks. This is the condition we evaluate for rejuvenation.
When replacement is genuinely necessary
If the decking is compromised, the roof is sagging, shingles are failing across the field, or water is already getting inside, replacement is the right call and this page will not talk you out of it. Roof Vital does not benefit from a homeowner deferring necessary roofing work — and a treatment applied to a failing roof is money burned twice.
How long can you wait?
An aging but watertight roof can often be monitored season to season. A roof letting water past the underlayment cannot. Once sheathing takes on moisture, the eventual project grows to include decking, sometimes insulation, and occasionally framing. That is why "how long can I wait" is really a question about whether water is getting in.
Alternatives to roof replacement
The honest list is short. Targeted repair addresses a specific defect. Rejuvenation addresses shingles that are drying out on a roof that is still sound. Neither is an alternative to replacing a roof that has failed. Read rejuvenation vs replacement for where the line sits, and roof replacement cost if you need to budget for the real thing.
Getting an honest answer
Ask whoever inspects your roof to show you photos of what they found — the decking, the flashing, the shingle condition. A recommendation you can see the evidence for is worth far more than a number on a proposal.
Keep reading
Roof replacement cost guide
What a new roof actually costs, and why.
Does my roof qualify for rejuvenation?
Qualifying and disqualifying conditions.
Can you avoid replacing an aging roof?
Repair, rejuvenate or replace — how the choice is made.
Get an honest roof assessment
We'll tell you if the answer is replacement.
Get an honest roof assessment
Roof Vital assesses the roof before recommending anything — including recommending against treatment when the roof needs roofing work.