The Dam Buster Rainhead

For the plumber and informed building owner, this amazing Deemed to Satisfy (DTS), hydraulic engineer certified, Australian designed, made and patented rainhead is a revolution.  

The Dam Buster rain head makes compliant installation by the plumber an absolute breeze while also incorporating all of the requirements of AS/NZS3500.3, SA HB39, SA HB114 and the National Construction Code (NCC) into a great looking, top quality product that actually works straight out of the box and is specifically designed to cope with even the toughest 1:100 year ARI conditions ANYWHERE in Australia

Fitting non-compliant and untested products creates an unacceptable risk of internal building flooding during even modest storm conditions.  If in doubt, ask your current rain head supplier for a copy of the hydraulic engineers compliance certificate for their product. 

For Architects and Designers, Dam Buster rain heads substantially minimise the impact of box gutters on the form of a building by making the rain head size as small as possible while still ensuring 100% compliance. The extremely high performance of all Dam Buster rain head also directly provides the opportunity to reduce the size of box gutters in many applications and also to design buildings with fewer box gutters.   

If you'd like to find out more about our award winning rain heads, please read our Further Information page.

Now recognized across the country and protected by various Australian and International Patents, Dam Buster rain heads won an Australian Good Design Award in 2018 and were also featured on Australia By Design Innovations Series 2, 10 Network Australia, 2018.



Models are available to suit all box gutters from 200mm up to 600mm wide.  The unique retrofit panel (supplied) also adjusts to odd sizes and configurations if required. 

Every Dam Buster has independent hydraulic engineer certified overflow capacity of at least 16 litres per second. 

Naturally Dam Buster rain heads must be correctly sized according to the roof area using the 1:100 year ARI for the location of installation.  

Custom designs can be catered for - please Contact Us for details. 


Standard Range:  Zincalume is the standard material in all sizes between 200mm and 600mm. Colorbond colours are at this stage only available in 200mm and 300mm sizes: those colours are Monument, Woodland Grey, Surfmist, Dune and Night Sky. All Dam Buster products can however be easily powder coated at extra charge to any colour in the Dulux range including all Colorbond colours.

Custom Order: Stainless steel 304, stainless steel 316 marine, Corten steel, copper etc.  Almost any flat metal can be used to suit your personal project requirements - ask us for a quote


Contemporary, Traditional, Round Fronted or Fully Customised designs are available to suit your individual requirements.  

Our optional top trim piece also provides a more traditional appearance and is simply fixed over the top of the contemporary rain head by the installing plumber (not available for curved front models). 

For maximum flexibility, Dam Buster rain heads can also be simply converted on site to suit eves gutter installations.

Curved front option

Looks Fantastic

Curved front option - Looks Fantastic
Top view

With Decorative Trim Piece Fitted

Top view - With Decorative Trim Piece Fitted
Looks great installed
Looks great installed

Cheap Rainheads = Disaster - Don't end up like this home owner - a single defective rain head caused this mess.
Cheap Rainheads = Disaster

Don't end up like this home owner - a single defective rain head caused this mess.

Easy Compliance

DAM BUSTER is the only Deemed to Satisfy box gutter rain head available in Australia that is FULLY ENGINEER CERTIFIED COMPLIANT to meet or exceed the performance and overflow requirements of AS/NZS 3500.3, SA-HB39 and SA-HB114.  Dam Buster rain heads also fully meet the requirements of National Construction Code (NCC).

This absolutely unique product protects buildings from flooding internally due to over topping or back flooding of box gutters in severe storm conditions and also ensures a leak free seal between the box gutter and the rain head.  All Dam Buster rain heads also achieve extremely high flow rates during normal operation, making them the obvious choice to protect any building.    

For the plumber, Dam Busters are very high performance roof plumbing products which fully meet all legal requirements and also critically do not require any type of a Performance Solution. 

Fully and independently engineer tested to the limit of Australian Standards and far beyond, Dam Busters are  a totally unique Australian invention and the biggest step forward in rain head design for well over 100 years.  

Australian design winner 2018
Australian design winner 2018




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