Technical Documents

Key technical documents for all products including performance and selection information can be easily downloaded from the links on the right.  

IMPORTANT: All relevant codes applicable to the location of installation must be observed to achieve a compliant outcome. Regulators also may vary in their approach; a specific guide to the requirements in VICTORIA can be downloaded on the right. 

 Dam Buster does not provide any project advice and correct usage of our products is entirely the responsibility of the relevant installer/certifier.  

Dam Buster Quick Design Guide

Forget the confusing maze of graphs and formulas in the Australian Standards and handbooks.  The incredibly easy to use Dam Buster Quick Design Guide consolidates all of that into simple form.  It covers issues like calculating flow rates, down pipe sizes, box gutter depths and how to easily select the correct Dam Buster products you need.  It's never been this easy!!  

Performance Solution Templates

These easy to use Performance Solution templates on the right have been prepared as suggestions to assist with the Performance Solution Process for genuine, certified Dam Buster products which have known performance capabilities. For obvious reasons, none of this information nor any of the other information on this website, applies in any way to any non-genuine Dam Buster product or products. Copying these documents in whole or in part is also a breach of copyright, so please just buy the real thing from our Authorised Licensees. 

Dam Buster
takes no responsibility for any Performance Solution prepared using these templates; they are a suggested format and/or method only and must be used solely by suitably experienced and qualified persons.  Users must validate all documents, make all necessary calculations independently, and otherwise take all steps necessary, including the engagement of appropriate experts if deemed appropriate, to ensure a fully compliant outcome arises from the use and installation of all our innovative products. 

Need Help with a Dam Buster Performance Solution? 

Our handy guide will walk you though the straight forward process for genuine, fully conforming Dam Buster products; just download it below.  

Installation Manual For All Dam Buster Products

Dam Buster products are revolutionary, fully engineered designs.  Don't guess anything or make assumptions based on experience - check the Installation Manual before you start the project.

Need More Installation Help?

Our Technical Team is aways available if needed - please email 

Rainhead Overflow Performance Test Certificates

Dam Buster rainhead overflow Performance Certificates issued by the AHSCA Research Foundation can be downloaded on the right.

NB: These documents show images of rainheads with either round or rectangular secondary front overflows, however all testing conducted by the AHSCA Research Foundation and referenced in these certificates was carried out with the secondary front overflows fully blocked. This testing also confirmed the secondary front overflows were not necessary and hence have since been deleted from later production. The test certificates therefore apply to all Dam Buster rainhead products regardless of series and/or whether or not they have a secondary front overflow device fitted. 

Dam Buster Education at Work

On 13 April 2022 the Dam Buster team presented to a packed meeting of the Association of Hydraulic Services Consultants Australia (Vic).  A copy of the presentation can be downloaded on the left. 

AHSCA Research Foundation Discussion Papers

Associate Professor Terry Lucke from the AHSCA Research Foundation is one of Australia's leading hydraulic engineers.  On the left are two papers where he discusses common issues with box gutter designs.

Why Common 1 degree Roof Slopes are Generally a Bad Idea

Dam Buster Technical Manager and Civil Engineer Rowan Gregory argues the case against very low pitched metal roofs. 

There's a Trap With Lower Side Wall Slopes on Some Valleys

Dam Buster Technical Manager and Civil Engineer Rowan Gregory discusses the danger and how this can easily come about, potentially making the job non-compliant. 


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