How long does a Colorbond roof last in Brisbane, and when do you need Colorbond Ultra?

Published 23 October 2026

How long Colorbond lasts: warranty versus life

A warranty is a written promise with conditions; it isn’t a prediction of how long the roof will last. BlueScope says it “provides warranties periods for COLORBOND® steel based on the end use and the location of the project” and offers “a variety of warranties subject to application and eligibility criteria”. You “register and apply for a warranty using our Warranty Management System, for up to 12 months from the date of installation”.

Ask the roofer who registers the warranty for your address and when, and keep the confirmation with the invoice. BlueScope says a warranty claim needs “documentation to show your product’s age, proof of product purchase and photos”.

How long a particular roof lasts depends on where it is, how it was installed and how it’s looked after. BlueScope names local conditions, including prevailing winds and areas the rain doesn’t wash.

Colorbond steel or Colorbond Ultra: BlueScope’s distance guide

Colorbond Ultra is BlueScope’s product for sites closer to salt water. Its consumer site gives a simple guide by distance from breaking surf, separately for roofs and walls:

BlueScope’s simple guide to Colorbond steel and Colorbond Ultra

colorbond.com FAQ (BlueScope, updated 10 September 2026), checked 23 October 2026. BlueScope says “Distance is as measured from the high water/tide mark” and that the guide “Applies to salt marine influences only”. For other distances and other marine conditions, including calm water, it refers to its Technical Bulletin TB-01A.

The simple guide covers breaking surf only. For “other marine conditions”, BlueScope refers to TB-01A, and it defines surf, exposed and calm marine conditions in a separate bulletin, TB-35.

Colorbond near the Brisbane River at Hamilton, Bulimba and Newstead

The Brisbane River is tidal well past the inner north. The Bureau of Meteorology says “Tidal influences also affect much of the Lower Brisbane River and extend inland as far as Mount Crosby.”

By our own rough measurement on a map, Hamilton and Ascot are about 46 km from the ocean coast of North Stradbroke Island and about 10 km from Moreton Bay at Nudgee Beach. These are straight-line estimates, accurate to a kilometre or two. So breaking surf, the distance in BlueScope’s simple guide, doesn’t come into it for the inner north.

Riverfront streets in Hamilton, Bulimba, Newstead and Teneriffe are a different question: they sit metres from tidal water. Whether BlueScope treats the tidal river at your address as a marine condition, and which product it recommends there, is a question for BlueScope itself, so for a home on or near the river, check before choosing:

• Call BlueScope Steel Direct on 1800 800 789 with your address and ask which product and warranty it recommends for the roof and any wall cladding.
• Ask the roofer to quote both Colorbond steel and Colorbond Ultra, itemised, and to name the product on the quote and invoice.
• Ask the roofer to register the warranty for your address within 12 months of installation.

Looking after a Colorbond roof

BlueScope says Colorbond “requires minimal maintenance – the wash of natural rain water will help keep it looking good for many years.” The parts rain doesn’t reach are the ones to watch: “Areas not regularly washed by rain water, such as wall cladding under eaves, garage doors and the underside of eave gutters, should be hosed down at least every six months and more frequently in coastal areas.”

Washing

Where hosing doesn’t shift the dirt, BlueScope recommends “a mild solution of pure soap or non-abrasive dishwashing detergent in warm water”, rinsed off thoroughly, and no abrasive scourers or steel wool.

Swarf after installation

Swarf is the steel filings left by cutting and drilling. BlueScope says “Swarf particles can corrode rapidly and cause unsightly stains” and that “Prevention of swarf staining is the responsibility of the installer and following trades”. Our advice: ask anyone who drills the roof later, such as solar or air-conditioning installers, to sweep off their filings too.

Wood fires and flues

BlueScope says fallout from chimneys and wood-fired heaters “can be unsightly and, if neglected, can damage the surface on which it falls.”

Hail dents

On hail, BlueScope says “hail indentations do not typically affect the lifespan of a roof made from COLORBOND® steel”, but that problems can arise on low-pitched roofs where deep dents hold water and dirt, or where sheet laps are deformed enough to draw water in. Insurance questions are covered in the hail damage and roof insurance guide.

Choosing and pricing a Colorbond re-roof

No Brisbane roofer publishes the price difference between Colorbond steel and Colorbond Ultra, so ask for both, itemised on the same quote, before deciding. Published Brisbane prices per square metre for metal and tile-to-Colorbond re-roofs are in the roof replacement cost guide, and changing from tiles is covered on the tile to Colorbond page.

Metal roofing work sits in the QBCC’s roof and wall cladding licence. Building work valued over $3,300 needs a QBCC licence; check the roofer on the QBCC licensee register.

Common questions