How to Remove Asbestos Siding Safely in 9 Steps

Before you begin the process of removing asbestos, it is mandatory that you obtain a permit. This permit is typically issued by your local building permit officer, or another relevant agency. The cost of the permit will vary based on where you live, and the nature of your project. Generally, the fee is based on an estimate of the amount of debris to be removed. Additionally, the permit application process may require notifying your state’s Department of Health.

To ensure the safety of everyone who could be impacted by the asbestos–and to reduce the risk of releasing asbestos fibers into the air–properly prep the area. You can post signs for family, friends, neighbors, and others that notify them of the work taking place, and advise them to steer clear of the work area. Also, place a 6-foot wide strip of 6-mil sheet plastic in the shade, running along the removal site, to maintain moisture in the siding. Set up a transitional zone for entry and exit beside the plastic strip, and equip it with a plastic disposal bag.

Full personal protective equipment (PPE) is required before working with asbestos siding. Every person working on the project must wear the PPE gear. This includes safety glasses, rubber gloves, and disposable coveralls. 

A purple, half-face dual-cartridge respirator with a high efficiency particulate air (HEPA) filter is recommended to protect the lungs. A proper fit is crucial for maximum protection, and you should request a fit test from the vendor. If the respirator doesn't fit properly, it won't provide adequate protection. It's important to note that individuals with beards may not be fitted properly with this type of respirator, and should avoid asbestos abatement work if they choose not to shave their facial hair.

Start the removal process by drenching approximately 50 square feet of siding. To prepare a solution, blend ½ cup of liquid dish-washing detergent with water in a garden pump sprayer. Continue spraying the solution on the siding as you work, as wetting the siding can prevent the spread of asbestos fibers. 

During the removal of asbestos, exercise caution to prevent the release of asbestos fibers. To minimize breakage, the siding pieces should be removed by either pulling out nails or cutting nail heads. If necessary, a pry tool can be used to carefully lift the siding and expose nail heads.

Immediately address any cracking or crumbling by wetting the affected areas with a garden pump sprayer on the front and back sides of the siding. When lowering the siding, care should be taken to avoid throwing or dropping it, as breakage can release asbestos fibers. All debris should be confined to the plastic strip at the base of the wall and kept wet until it is packaged and sealed.

To maintain safety standards, remove your disposable coveralls and other protective equipment in the transition zone–before leaving the work area. You should don a new set of coveralls and gloves each time you re-enter the work area.

To safely dispose of wetted debris and other contaminated materials, load them into sturdy containers, such as steel drums, cardboard boxes, or burlap sacks. These containers should be lined with 6-mil polyethylene bags or sheets, ensuring that there is enough excess plastic to cover the debris. Seal the containers with duct tape. For boxes, wrap them in an additional layer of 6-mil plastic or insert them into a pre-marked asbestos waste disposal bag.

For other filled containers, double-bag or double-wrap them in pre-marked 6 mil asbestos waste disposal bags. Twist the top of each filled bag, bend the twisted part in half, and seal it closed with duct tape. If containers are wrapped, use 6-mil polyethylene plastic and ensure all seams are sealed with duct tape. Each sealed package should have an asbestos warning label attached.

Once you're standing on the last piece of plastic, spray water onto any asbestos debris or fibers that are on the outside of your respirator and disposable coveralls. Peel off your boots, coveralls, and gloves while turning them inside out, stepping off the plastic sheet as you do so. Discard the filters from your respirator and dispose of them. Clean tools, respirators, goggles, and boots, removing each item from the plastic as you finish.

Place any remaining debris and disposal items in bags that are labeled for asbestos disposal, or wrap them twice in the 6-mil thick plastic sheets, and seal each bag or package tightly with duct tape. Label every airtight container immediately after sealing. To clean up additional areas, use damp rags rather than a vacuum or broom to avoid releasing asbestos fibers. Finally, shower to ensure that you're personally decontaminated.

The total project will span 2–4 days. Repeat these steps each day until completed. 

Proper disposal of asbestos debris is essential, and it must only be carried out at authorized disposal sites or transfer stations equipped to handle such waste. To locate licensed sites and obtain information on disposal fees, you may contact your local clean air agency. Disposal requires a waste manifest, and the necessary forms are available at the disposal sites.

Proper labeling is required for each container, which must include your last name, address, and date of removal. It is crucial to legally dispose of debris within 10 calendar days of its removal,  and keep it stored in a secure area such as a garage before disposal. When transporting double-bagged or wrapped debris, ensure that it is done in a covered vehicle to comply with disposal regulations.