Exterior Sprinkler Systems
Keep your roof, walls and the 1.5 m around your home wet when embers arrive.
Exterior sprinkler kits mount on gutters, roof peaks or tripods and wet down the structure and immediate zone ahead of a fire front. Consumer kits run off a garden hose or a gas-powered pump drawing from a pool, pond or tank. They are the single most effective product-based defense a homeowner can add — but only if you have a water source that keeps working when municipal pressure drops.
Our picks
4 products · price bands $ to $$$$
WASP Wildfire Protection Full Kit
Canadian-designed gutter-clip sprinkler heads that install in minutes without tools and run off a standard garden hose. The full kit covers a typical roofline and includes hoses and splitters.
Frontline Wildfire Defense System
Permanently installed roof sprinkler system with its own pump, water storage and app-based remote activation. Coats the home in a foam-water mix that clings to surfaces. Aimed at high-value homes in California and the Western US.
Platypus Roof Sprinkler
A brass roof-ridge sprinkler that straddles the peak and throws a wide circular pattern over both roof slopes. Originally from Australia, where roof sprinklers are standard in bushfire zones.
Brass Impact Sprinkler on Tripod
A hardware-store brass impact sprinkler on an adjustable tripod, aimed at walls and decks, is the cheapest exterior wetting you can set up. Not a roof solution, but a real improvement for the Zone 0 perimeter.
Before you buy
- Water source matters more than the sprinkler. Municipal pressure often collapses during a wildfire; a pump plus a pool, cistern or IBC tote is the resilient setup.
- Look for brass or metal sprinkler heads and UV-rated hose — plastic heads fail in radiant heat.
- Gutter-mounted kits (WASP-style) are the fastest DIY install; roof-peak kits cover more surface but need a ladder and hardware.
- Coverage is rated in metres/feet of radius per head. Measure your roofline and buy 20% more heads than the math says.
- Turn on early — 30 to 60 minutes before the front arrives — and keep an eye on your water budget.