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
Residential garages, outbuildings, extensions, and some main roofs from before 2000 may use asbestos cement corrugated sheets or slates. Homeowners planning roof replacement must have the material tested before any contractor begins work, disturbing asbestos cement without proper procedures is illegal and dangerous.
Asbestos cement roofing must be removed intact by a licensed contractor, not broken or cut. The waste must be transported and disposed of at authorised facilities. Only after removal is complete can the new roof be installed.
What You Need
Frequently Asked Questions
How much is a tonne to get rid of asbestos?
Asbestos disposal costs typically range from €180-€500 (£150-£400) per tonne for double-bagged waste at a licensed landfill. Total removal costs including labour and equipment are considerably higher. Prices vary by region and local waste regulations.
Can I remove asbestos tile myself?
In the UK, householders can legally remove small quantities of certain chrysotile products (cement sheets, floor tiles) from their own domestic property. Strict precautions must be followed, and the waste must be taken to a licensed disposal site.
How bad is it to remove asbestos tiles?
Removing asbestos floor tiles without proper precautions can release fibres into the air. While cement-bonded tiles are lower risk than friable materials, wet methods and appropriate PPE should always be used.
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.
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