Replacing a roof? It may contain asbestos cement.
Asbestos cement roofing, corrugated sheets, slates, and flat panels, was one of the most widely used building materials of the 20th century. Millions of buildings worldwide still have asbestos cement roofs, many of which are now reaching the end of their service life.
You cannot simply replace an asbestos roof as you would a conventional one. The material must be removed intact by licensed contractors following strict containment procedures to prevent fibre release. Breaking, cutting, or pressure-washing asbestos cement is illegal and extremely dangerous.
After removal, the asbestos waste must be transported and disposed of at licensed facilities with proper documentation. Only then can the new roofing be installed.
The Problem
Farm buildings, barns, sheds, animal housing, and storage structures, are among the most common buildings with asbestos cement roofs. These roofs are often decades old, heavily weathered, and in poor condition, making replacement both urgent and legally complex.
Agricultural asbestos removal faces unique challenges: remote locations, limited contractor access, and the need to protect livestock and feed from contamination during the removal process. Waste disposal logistics in rural areas may also be more complex.
What You Need
Frequently Asked Questions
Can you use PVA to seal asbestos?
PVA can be used as a temporary sealant for minor surface damage to low-risk ACMs. It is not a permanent solution and does not replace professional removal when materials are significantly deteriorated.
Can lungs be cleaned from asbestos?
Once asbestos fibres are embedded in lung tissue, the body cannot fully remove them. While the immune system can clear some fibres, those that remain can cause inflammation over decades, potentially leading to asbestosis or mesothelioma.
Is it okay to scrape moss off an asbestos roof?
No, scraping or pressure-washing an asbestos cement roof releases fibres and accelerates deterioration. Use a specialist biocide treatment applied gently, or consult a licensed contractor about safe cleaning methods.
Can asbestos be washed off hands?
Asbestos fibres on the skin do not penetrate and are not absorbed. Washing with soap and water is sufficient to remove surface fibres, but the main risk is inhaling fibres that may be on clothing or skin.
How much does it cost to change an asbestos roof?
The average cost for replacing an asbestos roof on a small building (garage, outbuilding) ranges from €1,400-€5,500 (£1,150-£4,500), depending on size, access, and complexity. Larger buildings cost proportionally more.
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