Scale is a module count, not a redesign.
Warehouses, factories and commercial estates protected by grouping Rainmaker® modules into independently controlled zones.
Zoned protection across large roof areas.
Large commercial roofs are long runs with high water demand. Rainmaker® Commercial handles that by dividing the roof into zones — each an independently valved group of standard 6-metre modules — so flow stays within the capability of the site supply.
The geometry never changes: two flexible heads per module, 12-metre spray radius each, modules joined end-to-end. Coverage grows by adding modules and zones, which keeps the bill of materials, the hydraulics and the installation method predictable at any building size.
- 6 m
- Module length
- 2
- Heads / module
- 12 m
- Spray radius
- 2 bar
- Min. pressure
Protects stock and continuity
A wetted roof envelope defends inventory, plant and the trading days that follow an incident.
Zoned to the water supply
Zones are activated individually, matching demand to available flow instead of oversizing the supply.
Roof or exterior wall
Modules mount along the ridge or on external walls where the exposure sits.
Heat load reduction
Wetting a large steel roof in summer lowers surface temperature and the cooling load beneath it.
Activate the zones under threat.
Assess exposure
Site procedure identifies which elevations face the fire front.
Open those zones
Zone valves are opened individually, so flow is committed where it is needed.
Envelope saturation
Each zone's modules saturate their section of roof and the surrounding protection band.
Extend or stand down
Open further zones as conditions shift, then close valves once the threat clears.
Zoned commercial layout.
Standard modules grouped into independently valved zones along a long commercial ridge, with continuous overlap maintained inside each zone.
Specified for facilities teams.
Independent zone control
Each zone is separately valved for staged activation across a large roof.
Standard module throughout
One part number scales the whole building — simple stores and spares.
Wall-mount option
Exposed elevations and boundary walls can carry their own module runs.
Pressure-regulated network
Uniform droplet size and radius from the first module to the last on long runs.
Plumber-installable
Conventional plumbing skills and tools — no proprietary trade certification.
Documented on site
QR code at the manifold links to the current installation and operating guide.
Commercial configuration data.
Zone count, module count and total flow are determined per building and confirmed in the Preliminary Protection Design Report.
Module & zone configuration
- Module length
- 6 m (standard part throughout)
- Flexible sprinkler heads per module
- 2
- Zoning
- Independently valved zones, configured per building
- Nominal flow per module
- ≈ 1 500 L/h
- Scaling method
- Add modules and zones — geometry unchanged
Mounting & installation
- Mounting position
- Roof ridge and/or exposed exterior walls
- Bracket
- UV-stabilised PVC ridge or wall bracket
- Fixing method
- Screw-fixed and epoxy bonded to approved surface
- Manifold
- Zone valves grouped at an accessible manifold
- Installation route
- Registered plumber / contractor
Coverage
- Spray radius (per sprinkler head)
- 12 metres
- Coverage strategy
- Continuous overlap maintained within each zone
- Activation
- Zone-by-zone, matched to the exposed elevation
- Protected surfaces
- Roof envelope, parapets, wall faces, perimeter band
Water supply & flow requirements
- Minimum operating pressure
- 2 bar at inlet, per active zone
- Flow planning
- Peak demand calculated on simultaneous zones only
- Typical source
- Municipal main, site tanks or fire reserve
- Booster pump
- Sized to the largest simultaneous zone group
- Control
- Manual zone valves at the manifold
- Zoning is the primary engineering tool: it keeps flow within the available supply instead of oversizing the connection.
- One module part number across the building simplifies facilities stores and spares holding.
- The site QR code at the manifold links to the current installation and operating guidance.
Specified for these environments.
- Retail centres, offices and mixed-use commercial buildings
- Warehouses and distribution facilities
- Long single-ridge roofs requiring staged activation
- Exposed elevations and boundary walls carrying their own runs
- Summer roof-temperature and cooling-load reduction
- Process-hazard or flammable-liquid fire suppression duties
Size your building.
Enter roof dimensions and supply details to get zone breakdown, module count, flow requirement and total price.