The fiberglass connection to mesothelioma is a concern as this material has replaced asbestos in insulation. While not nearly as dangerous to human health, fibers of glass can still cause harm to the body’s tissues; additionally, insulators working today may come in contact with old asbestos insulation.
What Is Fiberglass?
Fiberglass is a synthetic mineral fiber made of silica compounds. Other names include glass wool, fibrous glass, and glass-reinforced plastic. Manufacturers first started making fiberglass in the 1930s. Fibers in this material are long, thin, and tiny.
Fiberglass has many valuable properties. It is flexible and strong. It insulates well and is useful in soundproofing. Fiberglass can also be molded into various shapes when mixed with plastics.
One of the most common uses of fiberglass is as insulation in buildings, ships, and aircraft. Fiberglass can also be used as a material for car bodies, swimming pools, bathtubs, hot water tanks, pipes, and other products that need to be both strong and lightweight.
Fiberglass Compared to Asbestos Insulation
By the 1950s, the health effects of asbestos began to come to light. At that time, fiberglass became an obvious replacement.
Like asbestos, fiberglass insulates, resists heat, and is strong, durable, and flexible. The fibers of fiberglass are made of glass and created synthetically, while asbestos fibers are natural and form in the ground.
While the health risks of asbestos fibers are well documented, fiberglass is less understood; however, it is known that fiberglass poses some risk, but these are less serious than those associated with asbestos.
Whether or not the fibers of fiberglass could be carcinogenic has been debated for decades. Many years ago, studies with laboratory animals indicated that glass fibers are carcinogens, but researchers have struggled to replicate those results.
Today, research seems to indicate they do not cause cancer. In 2012, the North American Insulation Manufacturers Association member companies removed cancer warning labels from fiberglass products.
Fiberglass Exposure and Health Risks
Fiberglass is safer than asbestos, but there are still some health risks, especially for insulation workers. As with asbestos, when fiberglass is disturbed, especially during installation or removal, the glass fibers become part of the dust that floats in the air and settles on surfaces.
Insulation workers and others in the area may inhale or ingest fibers from fiberglass materials. One of the common impacts of exposure is irritation. Fibers can cause redness, rash, or itchiness on the skin, as well as in the eyes and respiratory tract.
A worker with asthma or other respiratory illness may see symptoms worsen after exposure. If swallowed, fibers can cause stomach irritation and distress.
While fiberglass exposure is generally not considered cancer-causing, there is no definitive answer. The International Agency for Research on Cancer listed fiberglass as “possibly carcinogenic to humans” in 1987 but removed that classification in 2001. Several years of research found it could cause cancer, including mesothelioma, only in animals in laboratory settings.
Asbestos Risks for Insulators
The construction industry used asbestos in many building materials into the 1970s. Insulation was a major application for asbestos. In the past, insulators and other construction workers experienced exposure to asbestos. Many became sick with mesothelioma as a result of this exposure.
Construction is a safer industry today. Asbestos use is limited to few specialty products, and laws protect workers, mandating safety training and gear. Some risk remains, however. Insulators working in older buildings may still come in contact with asbestos.
Old insulation may need to be removed. Workers may also need to cut around this old insulation to do other jobs. This older insulation could contain dangerous asbestos. Disturbing it could loosen fibers causing them to become airborne. Without proper safety gear and procedures for dealing with the material, workers may inhale or ingest the fibers.
Safe Practices with Insulation
Insulators and others in the construction industry deserve safe workplaces. This includes appropriate training and safety gear for situations in which asbestos may be present. Workers also need training to reduce exposure to fiberglass. Proper gear to prevent inhalation and irritation from glass fibers is also a necessity.
Homeowners and people doing DIY work on older buildings have an increased risk of exposure to asbestos or glass fibers. This is because federal workplace safety rules do not regulate small jobs.
If your renovation project involves insulation, safety precautions are essential for your safety. Take these steps to reduce risks of exposure to fiberglass or asbestos:
- Wear long sleeves and pants. Clothing should be loose-fitting to reduce skin irritation.
- Wear a hat and gloves.
- Use a mask to avoid inhaling fibers.
- Wear safety goggles for eye protection.
- Ensure adequate ventilation with vents or an open window.
- Wet loose fibers after work to keep them from floating in the air.
- Vacuum your work space thoroughly.
If there is a possibility of asbestos insulation in the home, hire a professional abatement service to check for it. Never attempt to manage, remove, alter, or replace asbestos insulation on your own. This dangerous job is best left to professionals.
Fiberglass materials have improved the safety of the construction industry. Insulators, once hit so hard by asbestos exposure and illness, now work with much safer materials. Despite this, risks remain.
Fiberglass can cause irritation and possible harm, and dangerous asbestos still lurks in many older buildings. If you got sick because of working with insulation, contact an experienced asbestos lawyer to help you find compensation for medical bills.Get Your FREE Mesothelioma Packet
Page Edited by Patient Advocate Dave Foster
Dave has been a mesothelioma Patient Advocate for over 10 years. He consistently attends all major national and international mesothelioma meetings. In doing so, he is able to stay on top of the latest treatments, clinical trials, and research results. He also personally meets with mesothelioma patients and their families and connects them with the best medical specialists and legal representatives available.