New Jersey winters don't kill roofs with one dramatic blow. They do it slowly: water sneaks into a tiny gap, freezes, expands, opens the gap wider, and repeats — dozens of freeze-thaw cycles every winter. Then a February nor'easter finds the weak spot, and suddenly there's a stain on your ceiling.
The good news: an afternoon of fall preparation prevents most of it. Here's the checklist our crew recommends to every New Jersey homeowner — most of it you can do yourself.
The 7-point fall checklist
- Clean the gutters — twice. Once when leaves start falling, once after the trees are bare. Clogged gutters are the #1 cause of ice dams: water can't drain, it pools at the roof edge, freezes, and forces its way under the shingles.
- Check downspouts drain away from the house. Water dumping next to the foundation freezes into ice sheets and creeps back toward the fascia.
- Trim branches hanging over the roof. Snow-loaded limbs snap. A branch that brushes the roof in October punches through it in a January storm. Keep 6–10 feet of clearance.
- Scan the shingles from the ground. Binoculars work fine — look for curled edges, cracked or missing shingles, and dark patches where granules have washed away. Any of those is a pre-existing entry point for winter water.
- Look at the flashing. The metal around chimneys, vents, and skylights. If it's lifted, rusted, or the sealant is cracked, that's where the leak will start — flashing failures cause more winter leaks than shingle failures.
- Check your attic, not just your roof. Two things: insulation (an under-insulated attic leaks heat, melts the snow on the roof, and feeds ice dams) and ventilation (blocked soffit vents trap moist air that condenses and rots the decking from below). If your attic feels warm on a cold day, that's a problem.
- Document the "before." Take dated photos of your roof and ceilings in the fall. If a winter storm damages the roof, those photos make your insurance claim dramatically easier to prove.
Ice dams: NJ's silent roof killer
The sequence: heat escapes your attic → snow melts on the upper roof → meltwater runs down → refreezes over the cold eaves → an ice ridge forms → new meltwater pools behind the ridge → water backs up under the shingles. That's why code requires Ice & Water Shield membrane at the eaves — and why we install it on every roof, extended past code minimums. If your current roof predates that requirement, extra vigilance (and good attic insulation) is your defense.
The warning sign that means "call now"
Want a professional set of eyes before the snow?
Our fall inspection covers all seven points plus the things you can't see from the ground — every slope, valley, flashing, and the attic side. Free, documented with photos, no obligation. If your roof is ready for winter, we'll tell you exactly that. Schedule your free inspection before the first freeze.