Green Construction Tackles Asbestos Removal: How Builders Use Sustainability to Create Healthier Spaces
Sustainability is non-negotiable in the construction sector. Today, builders use reclaimed wood, bamboo, low-VOC paints, and recycled steel. They are also transforming older buildings into energy-efficient and sustainable homes and offices. But inside aging structures lurks a significant challenge. Asbestos.
In a report by the World Health Organization, asbestos is responsible for over 200,000 deaths in the workplace, including construction sites. Of all these deaths, 70% are work-related cancers, while exposure to asbestos outside the workplace causes about four million disability-adjusted life years and deaths.
This data indicates that the safe removal of this toxic material is necessary to prevent chronic respiratory diseases and death. And builders are realizing the potential green construction has in tackling asbestos abatement or removal, as it focuses on sustainable demolition techniques for environmentally responsible gutting, worker and occupant safety, and waste reduction.
Let’s dig deeper into ways green construction manages asbestos removal.
Conducting Thorough Asbestos Testing
Neglecting this step results in asbestos-containing fibers, which are toxic and nonbiodegradable, spreading into the surrounding environment, causing serious harm to the environment and individuals. When inhaled, for instance, asbestos fibers cause permanent scarring on respiratory organs, thus increasing the risk of lung cancer, asbestosis, and mesothelioma.
This material also alters soil porosity and texture, stunting root growth and microbial activity. Early detection is vital for the development of safe abatement plans to prevent the accidental release of ACMs or asbestos-containing materials.
Builders often seal the harmful materials and dispose of them safely to keep the surrounding ecosystems free from contamination. Remember, passing an asbestos inspection, which translates to healthy indoor air quality, is crucial for buildings to qualify as green or sustainable as per LEED and WELL building standards. So, testing and removing it early helps buildings gain sustainability and wellness certifications.
Prioritize Employee Training and Safe Containment
Handling asbestos-containing components sustainably requires knowledge and expertise. Even the smallest mistake can put workers, public health, and the environment in jeopardy, something that’s against green construction principles, which focus on reducing environmental harm. That said, the importance of building experts enrolling in an asbestos awareness course can’t be overstated.
Training helps workers identify asbestos, avoid disturbing ACMs on site, and understand their responsibility for eco-friendly containment and disposal. There are several green approaches to removing asbestos. One is the use of water-based biodegradable solutions instead of harsh chemicals. Builders also rely on renewable energy, negative air pressure, robotics, and HEPA filtration for containment.
The application of organic mist on pipe insulation, walls, and ceilings, for example, stops asbestos particles from spreading because water binds the fibers together. And when it breaks down, it doesn’t harm soil or water.
Workers seal off removal zones as well, using negative pressure and HEPA filtration to contain poisonous fibers released by ACMs. Using fans, constructors draw in air from filter units to pull contaminants away from living spaces while HEPA filters trap the microscopic fibers. Doing this prevents toxic dust from escaping and protects occupants in the building and the environment.
Since robots have sensors and cameras and can be controlled remotely, they limit human exposure to hazardous zones. Plus, their compact design and arms allow them to navigate tight spaces without causing structural damage and scoop heavy panels containing asbestos. Then seal them with water-based sealants. Besides eliminating human error and exposure, robotics cuts waste from repeated cleaning.
To maintain a negative-pressure environment and keep carcinogenic fibers locked away from occupied areas, intensive energy is required. Here’s where solar-powered energy comes in: it runs off-grid, lowering electricity bills and carbon footprints, and saving energy.
Responsible Waste Management and Using Greener Materials
The objective of eco-conscious construction is to reduce the burden on disposal facilities from asbestos waste. So, constructors perform selective abatement. That’s only the removal and disposal of contaminated materials.
Rather than demolishing an entire building, they search for ACMs and remove them while the non-asbestos portion remains intact. Note: Asbestos isn’t buried. The hazardous component is packed in double plastic bags, sealed, and labeled before being transported to approved landfills.
At the disposal facility, asbestos is thermally degraded into chemical-free by-products (stoneware and ceramic). Another alternative is to transform asbestos into porcelain tiles or ceramic blocks using microwave thermal treatment, or into inert particles with a high-speed milling machine.
Once it’s removed, builders replace it with greener materials to keep homes and business premises free from harmful fibers. Green alternatives to asbestos include mineral wool, fiberglass, polyurethane foam, cellular fiber, and natural fiber insulation.
Green construction isn’t only about using natural materials in new buildings. It also focuses on the safe removal of asbestos, a hazardous insulation material found in older structures. The process involves fostering asbestos awareness among construction workers and rigorous testing of ACMs within properties.
Builders then remove affected areas only instead of knocking down all the walls and ceilings in a building to reduce resource wastage. After removal, asbestos is transported to landfill facilities, where it’s recycled using innovative methods such as thermal degradation and high-speed milling.