Asbestos cement roof removal in Ireland.

Identifying a suspect roof

Asbestos cement roofing was the dominant material for garage, shed, lean-to and farm outbuilding roofs in Ireland from the 1950s until the late 1990s. Visual cues:

• Corrugated profile — typically 76 mm or 146 mm pitch, regular wave pattern.
• Grey colour, weathered to a paler grey-green over time, often with moss or lichen growth.
• Slightly chalky, fibrous texture when scratched — short white fibres visible at broken edges or cut ends.
• Hard, brittle — cracks rather than bends.

A modern non-asbestos fibre-cement sheet looks almost identical. Visual resemblance is not a diagnosis. See the suspect materials guide.

The compliant removal process

Asbestos cement roof removal is a bonded-material job. It is generally less complex than friable removal (AIB, lagging, sprayed coatings) but still follows a defined regulatory pathway:

1. Survey or representative sample to confirm asbestos content.
2. Plan of Work from a competent contractor — methodology, controls, waste route.
3. HSA notification and permit if the work is notifiable. Minimum 10 working days lead time.
4. Site setup — ladder or scaffolding, exclusion zone, polythene drop sheets to catch fragments.
5. Removal — operatives in RPE wet-strip the sheets to suppress dust, lift each sheet whole rather than breaking, and stack them carefully.
6. Wrapping and waste — sheets are double-wrapped in UN-approved polythene, labelled, and removed by a Waste Collection Permit holder.
7. Site clearance — visual inspection and disposable cover removal. For non-friable bonded work, a four-stage clearance air test may not be required — but this is set by the contractor's risk assessment, not by you.

Reinstatement — the bit that doubles the cost

Removing the roof is one cost. Replacing it is another. Most homeowners doing a garage-roof asbestos removal also need a new roof, and that is a separate trade with its own materials, scaffolding and labour line. Common replacement materials:

• Box-profile steel sheeting — most common for outbuildings.
• Plastisol-coated steel — longer life, higher cost.
• Modern non-asbestos fibre cement — visually similar to the original.
• Felt + battens + tile or slate — for properties seeking a more traditional finish.

When you take quotes, make sure each one is clear about whether reinstatement is included. A "removal only" quote without reinstatement is normal — but you need a separate trade quote on top.

What to ask in a quote

• Is the work notifiable? If yes, the HSA permit number (or written confirmation it will be obtained).
• Itemised lines for: survey/sample, removal labour, waste packaging, transport, disposal.
• The disposal facility name.
• Is reinstatement included? If not, what does the surface look like when they leave?
• What happens if the sheets are more brittle than expected and crack during removal?
• Will I receive a hazardous-waste consignment note after the job?

Frequently asked questions

Is asbestos cement roofing dangerous if left alone?

Asbestos cement is non-friable when intact — the asbestos fibres are bonded into the cement matrix. An undisturbed, weathered roof in good condition does not release fibres at significant rates. Risk arises sharply when the sheets are cut, drilled, power-washed, broken (in storms or by impact), or removed without proper controls. The HSA position is that intact, well-maintained asbestos cement can often be left in place, but any disturbance triggers the full removal regime.

Do I need to remove an asbestos cement roof to install solar PV?

Most solar PV installers in Ireland will not work on an asbestos cement roof because of the disturbance risk and the liability. The standard sequence for a homeowner who wants both is: survey the roof, plan the asbestos removal, replace the roof with non-asbestos sheeting suitable for PV mounting, then install the panels. Each is a separate cost. SEAI grants do not refund the asbestos removal line. Alternatives include ground-mounted, pergola-mounted or carport-mounted PV, which avoid the roof entirely.

Can a roofer just take it off if they're careful?

No. Removing asbestos cement roofing in Ireland requires a contractor competent to do the work safely and a permitted waste collector to remove the waste. The 2025 amendments tightened both the work and waste regimes — non-compliant removal is illegal, and the legal liability for unauthorised disposal transfers to you as the property owner. A general roofer offering to "take it down for you" without the right credentials is a problem, not a saving.

Will I need a survey before removal?

For a single outbuilding roof where the material is visually consistent with asbestos cement, a contractor may quote against the description plus a confirmation sample. For larger or mixed-material jobs, a refurbishment/demolition asbestos survey (RDAS) is standard. The 2025 regulations require a survey before any refurbishment work that may disturb asbestos-containing materials in a pre-2000 building. Get the survey before you commit to the removal.