Hidden Roofing Costs

Deck rot / wood replacement

Plywood or OSB board replacement ($75–$125 per sheet).

Building permit

Most cities require a roofing permit ($150–$600).

Gutter replacement / repair

Often damaged during tear-off or end-of-life gutters.

Chimney/skylight reflashing

Step flashing, counter flashing, skylight curb flashing.

Ventilation upgrade (ridge/soffit)

Code may require additional intake/exhaust ventilation.

Drip edge installation

Often skipped by budget roofers — code requires it in most areas.

Synthetic underlayment upgrade

Better than #15 felt — peel-and-seal for ice dam protection.

Multiple layer tear-off

If there are 2+ existing layers, removal costs double.

Dumpster / disposal fees

Construction debris disposal at local landfill.

Steep roof labor premium

Steep pitches (10/12+) require safety equipment and slow crews down.