Asbestos Cement Shed Removal: A Comprehensive Guide
Asbestos was once a popular building material due to its durability, resistance to heat, and insulating properties. Unfortunately, it was later discovered that asbestos fibres are hazardous to human health, causing severe diseases like mesothelioma, lung cancer, and asbestosis when inhaled. Many older sheds, garages, and outbuildings were constructed using asbestos-containing materials (ACMs), primarily asbestos cement, as it was affordable and weather-resistant.
If you own or are responsible for a property with an asbestos shed, understanding the process of safe asbestos shed removal is crucial. This guide will walk you through the various aspects of removing asbestos safely and responsibly, including the risks, the removal process, legal regulations, and the importance of hiring professionals.
What is Asbestos?
Asbestos is a naturally occurring mineral that has been used in thousands of products, particularly in the construction industry, due to its remarkable physical properties. There are six different types of asbestos, the most common being chrysotile, crocidolite, and amosite. In the past, asbestos was widely used in roofing, siding, insulation, pipes, and cement products, including those used in shed construction.
However, prolonged exposure to asbestos fibres can be extremely dangerous. Asbestos is made up of tiny fibres that, when disturbed, can become airborne. When inhaled, these fibres can lodge in the lungs and other tissues, leading to long-term health problems. It’s essential to recognise that not all asbestos-containing materials (ACMs) are equally dangerous. Asbestos cement, often found in sheds, is generally considered less friable (less likely to release fibres) than sprayed asbestos or loose insulation. However, once asbestos cement is broken, cut, or weathered, it can still release dangerous fibres.
Why Remove an Asbestos Shed?
There are several reasons why an asbestos shed should be removed:
- Health Risks: As mentioned earlier, exposure to asbestos can cause serious health conditions. Even though asbestos cement sheeting is generally safe if undisturbed, natural wear and tear, weathering, and potential damage can cause asbestos fibres to become airborne.
- Legal and Safety Regulations: Many countries and regions have regulations that mandate the safe removal and disposal of asbestos. In some cases, leaving an asbestos structure in place may be illegal or unsafe, especially if you’re undertaking renovations or selling a property.
- Environmental Impact: Proper disposal of asbestos is essential to prevent environmental contamination. Improper handling can lead to asbestos contamination of the soil, air, or water supply, affecting surrounding areas.
- Property Value: An asbestos structure on your property may affect its resale value, as potential buyers may be concerned about the cost and health risks of removing it.
Assessing the Risk of Asbestos in Sheds
Before undertaking any asbestos removal, it’s critical to assess the condition of the asbestos in your shed. Asbestos cement sheeting in good condition may not necessarily need immediate removal. However, any signs of wear, damage, or disturbance increase the likelihood of fibre release and the need for prompt removal. Here are some key signs that your asbestos shed may need to be removed:
- Cracking or Breaking: If the asbestos cement sheets show signs of cracking or breaking, this indicates that fibres could be released into the air.
- Discolouration or Weathering: Over time, weather can erode asbestos cement, making it more friable and prone to fibre release.
- Presence of Lichen or Moss: Organic growths like moss or lichen can penetrate the surface of asbestos cement, weakening its structure and increasing the risk of fibre release.
If you’re unsure whether your shed contains asbestos or the risk level, it’s best to hire a professional asbestos surveyor who can conduct a thorough inspection.
The Asbestos Shed Removal Process
Removing asbestos sheds requires a careful, methodical approach due to the hazardous nature of the material. Here’s a step-by-step guide to the process of safely removing an asbestos shed:
1. Preparation and Risk Assessment
Before removal begins, a professional asbestos contractor will assess the shed and develop a plan for safe removal. This plan will include determining the type of asbestos present, the condition of the materials, and any potential risks associated with removal.
A risk assessment is mandatory and should cover the likelihood of asbestos fibres being released during removal, the containment measures that will be used, and the safe disposal methods.
2. Hiring Licensed Asbestos Removal Professionals
One of the most important aspects of asbestos shed removal is hiring licensed professionals. Asbestos removal is strictly regulated in many countries, requiring licensed contractors to carry out the work. These professionals have the necessary training, equipment, and safety gear to remove asbestos safely, minimising the risk to themselves and others.
3. Obtaining Permits and Notifications
Depending on where you live, local authorities may require you to obtain permits for asbestos removal. You may also need to notify your neighbours or local council before work begins. A professional asbestos removal company will usually handle these administrative tasks, ensuring compliance with all legal requirements.
4. Site Preparation
Before work begins, the site will need to be prepared to ensure that asbestos fibres don’t escape into the environment. This may include setting up containment zones, wetting down asbestos materials to minimise fibre release, and using protective sheeting to cover the surrounding area.
The team will also wear personal protective equipment (PPE), including respirators, disposable suits, and gloves, to protect against exposure to asbestos fibres.
5. Careful Removal of Asbestos Materials
The removal process must be carried out with extreme care. Asbestos cement sheets will be removed intact wherever possible to prevent the release of fibres. Any broken or damaged pieces will be handled carefully and kept wet to reduce the risk of fibre release.
Professionals will also avoid the use of power tools, as these can create dust and increase the likelihood of airborne asbestos fibres. Instead, manual tools will be used to dismantle the shed gently.
6. Bagging and Sealing the Asbestos Waste
Once the asbestos materials are removed, they must be double-bagged and sealed in heavy-duty plastic sheeting or asbestos waste bags. These bags are specially designed to prevent the escape of fibres and must be clearly labelled as containing asbestos.
7. Transporting and Disposing of Asbestos Waste
Asbestos waste cannot be disposed of in regular landfill sites. Instead, it must be taken to a licensed hazardous waste facility. A professional asbestos removal company will transport the waste using sealed vehicles to prevent any fibre release during transit.
It’s crucial to follow local guidelines for asbestos disposal, as improper disposal can result in severe penalties and fines.
8. Site Cleanup and Air Monitoring
After the asbestos shed is removed, the site must be thoroughly cleaned to ensure no asbestos fibres remain. This may involve using specialised vacuums with HEPA filters to capture any residual dust or fibres.
In some cases, air monitoring may be conducted to ensure that the area is free of airborne asbestos. This is especially important if the asbestos removal took place near inhabited areas or if the shed was in poor condition.
Legal Regulations and Requirements for Asbestos Removal
Regulations around asbestos removal vary depending on the country or region, but there are some general rules that are universally applicable. In many countries, asbestos is classified as hazardous waste, meaning its removal, transportation, and disposal are subject to strict controls.
In the UK, for example, the Health and Safety Executive (HSE) regulates asbestos removal, requiring that only licensed contractors handle high-risk asbestos materials. Similarly, in the US, the Environmental Protection Agency (EPA) and the Occupational Safety and Health Administration (OSHA) oversee asbestos regulations. Always check with your local authority for specific regulations governing asbestos removal in your area.
The Importance of Hiring Professionals
While some homeowners may be tempted to remove an asbestos shed themselves to save on costs, this is not advisable. Asbestos removal is a dangerous task that requires specialised training, equipment, and knowledge. Licensed professionals not only have the expertise to complete the removal safely but are also legally required to follow strict safety and disposal guidelines.
Hiring professionals ensures that all risks are minimised and that the asbestos is disposed of in compliance with local laws. Attempting to remove asbestos without proper training or equipment can result in exposure to hazardous fibres and legal consequences.
Conclusion
Asbestos shed removal is a necessary but complex task that must be approached with caution and care. Whether you are concerned about the health risks, need to comply with regulations, or want to enhance the value of your property, removing an asbestos shed is best left to licensed professionals. By understanding the dangers of asbestos and following the correct removal process, you can ensure a safe environment for yourself, your family, and your community.
In the end, the health and safety of everyone involved far outweigh the costs or inconveniences associated with asbestos removal. Proper handling, disposal, and adherence to legal regulations are the cornerstones of a responsible and safe asbestos shed removal process.
For more information on Asbestos Removal in St Albans contact AF Environmental Ltd.
