Most asphalt shingle roofs in New Jersey last 20 to 30 years. Architectural shingles usually reach 25 to 30 years, older three-tab shingles 15 to 20, standing seam metal 40 to 70, and commercial TPO or EPDM membranes 20 to 30. How long your roof actually lasts depends on installation quality, attic ventilation and how well it is maintained.
What shortens a roof's life in New Jersey?
Our climate is tough on roofs. In a single year a Central New Jersey roof can face summer heat above 95 degrees, tropical storm winds, nor'easters and dozens of freeze and thaw cycles. The biggest threats we see are:
Poor attic ventilation. Trapped heat bakes shingles from below and can cut their life by a third.
Ice dams. Melting snow refreezes at the eaves and forces water under the shingles.
Wind damage. Lifted or missing shingles expose the underlayment to sun and rain.
Clogged gutters. Overflowing water rots fascia boards and the roof deck along the edge.
Shortcuts during installation. Missing ice and water shield, reused flashing and too few nails cause early failures.
How can I tell if my roof is getting old?
Walk around your home and look for curling or cracked shingles, bald spots where granules have washed away, dark streaks and moss, and sagging along the ridge. Inside, check the attic for daylight through the boards, damp insulation or water stains. If your roof is over 20 years old and you see several of these signs, it is time for a professional inspection.
How do I make my roof last longer?
Schedule a professional roof inspection every two to three years and after major storms.
Keep gutters and leaders clean, especially after the fall leaves drop.
Trim branches that hang over the roof or rub against the shingles.
Fix small leaks and missing shingles right away, before water reaches the deck.
Make sure your attic has balanced intake and exhaust ventilation.
Is it time to replace your roof?
A roof that has reached the end of its life costs more every year in repairs and energy bills. Top 1 Roofing offers free inspections with photos of everything we find, so you can decide between a repair and a replacement with real information. Request your free roof inspection today.
Questions about your own roof?
Our team gives free, honest advice. No pressure, ever.
