Why Some Roofs in Portland Last 30 Years… and Others Fail at 15
“Age alone doesn’t tell you much about a roof.”
We’ve seen 15-year-old roofs failing… and 28-year-old roofs still solid. It comes down to what’s happening beneath the surface.
“Ventilation is the difference most people never see.”
If your attic traps moisture, it slowly damages everything from the inside out. Shingles age faster. Decking weakens. Mold starts forming.
“This side of the roof always tells a different story.”
The north side in Portland gets less sun — which means more moisture. That’s where moss grows fastest and problems show up first.
“Small maintenance = big lifespan difference.”
Homeowners who clean gutters , treat moss early and schedule inspections usually get 5–10 extra years out of their roof.
“Most roof failures aren’t sudden — they’re gradual. It’s not one big event. It’s years of small issues building up: moisture , moss , poor airflow . Until one day… it shows up inside your home."
By the time we finish walking your roof, the difference becomes obvious. Why some roofs last decades — and others don’t make it halfway. No guesswork. Just real answers based on what we actually see.
