The best painters for fibro and cement sheet cladding are the ones who ask how old the sheeting is before they touch it. Fibro manufactured in Australia before about 1990 may contain asbestos, and while sound, intact sheeting can generally be painted safely, it must never be sanded, water-blasted, drilled or cut. If your painter reaches for an orbital sander or a pressure wand on old fibro, stop the job.
Why this matters on the Peninsula
The southern Peninsula is full of it. Housing stock in Rye, Sorrento, Blairgowrie and Flinders is overwhelmingly detached timber and fibro, much of it built as holiday shacks from the 1950s through the 1970s. A great deal of that original cement sheet is still on the walls, in eaves, and lining bathrooms and laundries.
Asbestos cement was phased out of Australian building products through the 1980s, with a national ban from the end of 2003. As a working rule, sheeting installed before 1990 should be treated as potentially containing asbestos unless it has been tested and cleared.
What must never happen to old fibro
- No sanding. Not by hand, not with power tools. Sanding creates respirable dust, which is the entire hazard.
- No high-pressure water cleaning. Pressure blasting erodes the surface and spreads contaminated slurry across the site.
- No drilling, cutting or grinding. That includes screwing in a new downpipe bracket or cutting a vent.
- No dry scraping of flaking paint. Loose paint on fibro needs a wet, low-abrasion approach.
- No demolition or sheet removal by a painter. That is licensed removalist work.
Where sheeting is cracked, broken, crumbling or has damaged edges, painting is not the answer. It needs assessment by a licensed asbestos assessor, and any removal needs a licensed removalist. The best painters know where their scope ends: they are not asbestos professionals, and anyone telling you otherwise is overreaching.
What can be done safely
Painting is actually one of the better outcomes for sound asbestos cement, because a well-maintained coating encapsulates the surface and reduces fibre release. The approach is deliberately gentle.
- Establish the age of the sheeting. Where the age is unknown, arrange testing before work starts.
- Inspect for cracks, breaks, delamination and damaged edges. Anything damaged goes to an assessor, not a paintbrush.
- Clean using a low-pressure wash or hand washing with a soft brush and a mild detergent, keeping the surface wet.
- Remove loose flaking paint by wet methods only, with debris captured on drop sheets and disposed of correctly.
- Seal with a good-quality adhesion or binding primer suited to chalky mineral surfaces.
- Apply two full topcoats of a flexible exterior acrylic, so the film can bridge the small movement at sheet joints.
The details that actually fail
On fibro exteriors, the coating almost never fails in the middle of a sheet. It fails at the timber cover strips, at the sheet joints, and around window and door reveals where movement is greatest. Cover battens are usually timber and need their own attention: sanding a timber batten is fine, sanding the sheet next to it is not.
Eaves are the other common trouble spot. Fibro eave linings collect salt and mould, sag where fixings have corroded, and are often the first thing a buyer looks at.
Timeframes and costs
A single-storey fibro home typically takes four to seven working days for a full exterior repaint, because the wall surfaces themselves are fast and the time goes into careful washing, cover strips and trim. A full exterior repaint generally falls between $6,000 and $15,000, and a soft wash before painting runs roughly $260 to $735.
Testing, assessment or removal by licensed contractors sits outside a painting quote and is billed separately by those specialists. As always, these are ranges and a site inspection is needed for an accurate figure.
Who to hire
The best painters raise asbestos before you do, specify wet cleaning rather than blasting, and put the exclusions in writing. That combination tells you they have done this before. SG Coatings is Dulux Accredited and a Master Painters Australia member with more than twenty years of industry experience across Peninsula housing stock.
Much of the fibro we work on belongs to owners who are only down at weekends, which is why painting for coastal second homes includes inspection, access and photographic reporting. For gentle cleaning that will not damage old sheeting, see our soft washing service, and for the broader scope look at exterior painting. If you are unsure what you have, book an inspection through our contact page and we will assess it before recommending anything.
Frequently Asked Questions
Can you paint over asbestos fibro?
Sound, intact asbestos cement sheeting can generally be painted safely, and a well-maintained coating helps encapsulate the surface. The sheeting must never be sanded, water-blasted, drilled or cut, and cleaning has to be done wet at low pressure. Damaged or crumbling sheeting must be assessed by a licensed asbestos assessor instead.
How do I know if my fibro contains asbestos?
Age is the best first indicator. Cement sheeting installed in Australia before about 1990 should be treated as potentially containing asbestos unless testing proves otherwise. Only laboratory analysis of a properly collected sample can confirm it. If the history of your house is unknown, arrange testing before any work is scheduled.
What happens if the fibro is cracked or broken?
Stop and get it assessed. Damaged sheeting can release fibres and is outside what a painting contractor should handle. A licensed asbestos assessor will advise on condition, and removal or replacement must be carried out by a licensed removalist. Painting can proceed on the remaining sound areas once that work is complete.
How long does a fibro exterior repaint take?
Four to seven working days is typical for a single-storey home in sound condition. Wall surfaces coat quickly, so most of the time goes into careful low-pressure washing, timber cover strips, eaves and trim. Two-storey access, extensive flaking or repairs to timber battens will extend that program.
