Conical Rainhead
The conical rainhead is a hand-formed conductor head that sits between the box gutter and the downpipe. It collects the water running off the roof and funnels it into the downpipe, while its tall shape gives the overflow outlet room to release excess water in a heavy downpour. It is made to order in Colorbond, Zincalume, copper or stainless steel, so it can match the roof finish or make a feature of the downpipe line.
Key Features
- Hand-formed steel construction with folded edges for a clean finish
- Conical shape adds overflow capacity and a distinctive look to the downpipe line
- Available in Colorbond, Zincalume, copper or stainless steel
- Includes a fitted outlet for standard downpipe connection
- Overflow provisions help meet AS/NZS 3500.3 drainage requirements
- Wide range of standard sizes, with custom dimensions on request
Specifications
- Product: conical rainhead (conductor head)
- Standard sizes: 400 x 200 x 400mm and 600 x 250 x 600mm, plus overflow variants in 300 x 350 x 450mm and 360 x 410 x 550mm
- Materials: Colorbond, Zincalume, copper, stainless steel
- Standard detail: bead height approx. 35mm, flat back, pipe outlet fitted
- Outlet and overflow style (round, square, rectangular) to be specified at order
- Compliance: suited to AS/NZS 3500.3 drain design
Installation
Fit the rainhead to the box gutter outlet so the overflow weir sits below the gutter sole, then connect the downpipe to the fitted outlet. Position the overflow spout to release excess water clear of the wall. The unit ships complete with an outlet for downpipe attachment, and the bead height and flat back give it a neat finish against the wall.
Applications
- Box gutter terminations on residential and commercial roofs
- Overflow protection for internal gutters in heavy rainfall
- Downpipe transitions where a standard outlet would overflow
- Architectural projects where the conductor head is a visible detail
What You Need To Complete The Job
Run the outlet into a round downpipe sized for the roof area, and keep the box gutter supported with box gutter brackets. Browse the full Rain Heads range for conductor heads and outlets.
Frequently Asked Questions
What does a rainhead do?
It is a conductor head that connects the box gutter to the downpipe. It collects the water and funnels it into the downpipe, and its height gives the overflow outlet room to shed excess water before the gutter backs up.
Why do I need overflow protection?
AS/NZS 3500.3 requires a way for excess water to escape when a box gutter is overwhelmed. The overflow outlet on the rainhead releases that water externally, which stops the gutter flooding inside the building during intense rain.
What materials can I get?
The conical rainhead is made to order in Colorbond, Zincalume, copper or stainless steel. Colorbond and Zincalume match the roof, while copper and stainless give a long-lived finish that ages well.
Can I order a custom size?
Yes. Standard sizes are listed in the specifications, and bespoke dimensions are available on request. Tell us the box gutter width, the downpipe size and the roof area when you order so the outlet and overflow are sized correctly.
Can I order for delivery or pickup?
Yes. You can order online and choose Australia-wide delivery or pickup from our Truganina trade counter in Melbourne’s west. Delivery windows depend on your postcode, and we send a confirmation once your order is ready. For any questions call (03) 93941400 or email orders@singhroofingsupplies.com.au.




