No single symptom automatically means a roof must be replaced. But when several warning signs appear together, an inspection can determine whether continued repairs still make sense.
Widespread shingle deterioration
Curling, cracking, missing shingles, exposed areas and heavy granule loss across multiple roof sections can indicate broad aging.
Repeated leaks
A one-time leak can be repairable. New leaks appearing in different areas over time can indicate a system that is losing reliability.
Visible sagging or deck concerns
Structural-looking changes, soft areas or deteriorated decking deserve prompt professional evaluation.
The roof's age
Age does not decide the issue by itself, but it provides context. A decades-old roof with widespread symptoms is a different decision than a newer roof with one damaged flashing.