How exterior wildfire defense works
Automated exterior systems track nearby incidents, count down when a fire crosses your trigger distance, then wet roof, eaves, and perimeter before embers arrive.
Typical flow
- Property inspection measures pressure, elevation, and water sources.
- Zones are designed for eaves, roof rotors, and ground coverage.
- Controller watches incidents 24/7; countdown gives a cancel window.
- If street pressure fails during a run, pool/tank/well can take over (vendor-dependent).
- Class A foam may be injected to help water soak and stick.
FireShield publishes owner-set distance/countdown, zone selection, scheduling, and multi-path connectivity. Other vendors emphasize IR detection, self-contained tanks, or layered retardant services — see each company comparison.