How much does roof ventilation cost, and who pays for it?
Short answer. Roof ventilation costs the least when it is added during a roof replacement, where ridge vent and intake are modest line items on an open roof, and the most as a retrofit on an existing roof, where caps must be replaced and old vent holes patched. Powered fans add electrical work, and on an insurance funded replacement, code required ventilation may be payable under the policy's ordinance or law coverage.
Four scenarios, from least to most effort
- During a replacement: the deck is exposed, so cutting a ridge slot, installing vent and edge intake, and decking over unneeded box vent holes add little labor.
- Fixing intake only: cutting in soffit vents, swapping solid panels for vented ones, and adding baffles is ground and ladder work, often done without touching shingles.
- Retrofit exhaust on an existing roof: removing ridge caps, cutting the slot, installing vent and new caps, then patching old vents with shingles that may not match.
- Powered fans: the unit, a roof opening, flashing and a circuit from an electrician, plus ongoing electricity unless it is solar.
Who pays
- Out of pocket: ventilation upgrades on their own are home improvements.
- Insurance claim replacement: the base policy pays to replace damaged items like for like. Bringing ventilation up to current code is a code upgrade, which many Georgia policies handle through ordinance or law coverage, with limits. Read more in code upgrades and ordinance or law coverage.
- Hail damaged vents: dented or cracked vents are part of a covered storm loss when the policy applies.
Getting a fair quote
Ask for ventilation to be itemized: linear feet of ridge vent, intake type and length, vents removed and decked over. That makes quotes comparable. See roof replacement cost in Georgia and roof ventilation basics.