The Hidden Dangers of Traditional Fiberglass or Blown-In Insulation

Did you know that the insulation material used in your home could potentially pose health hazards? Many homeowners are unaware of the hidden dangers lurking within their walls, particularly when it comes to traditional fiberglass or blown-in insulation. While these insulation methods have been widely used for decades, there is mounting evidence suggesting that they may not be as safe as once believed.

What Are the Fiberglass Insulation Hazards? 

Fiberglass insulation has been widely used for decades in residential and commercial buildings due to its affordability and insulating properties. However, concerns regarding the potential health hazards associated with traditional fiberglass or blown-in insulation have been raised.

Traditionally, homes have been insulated with fiberglass insulation called batts or by blowing in loose fiberglass material into the desired area, such as the attic. However, just because a material has been used for a long time does not necessarily mean it is safe. Fiberglass insulation contains tiny glass fibers that can become airborne and potentially be inhaled or come into contact with the skin. These fibers can cause skin irritation, respiratory ailments, and other health issues.

In this blog, we will explore the hidden dangers of these insulation types.

Health Concerns

One of the primary concerns associated with traditional fiberglass insulation is the potential for health issues. Fiberglass consists of small glass fibers that can become airborne and irritate the skin, eyes, and respiratory system when not handled properly. Exposure to fiberglass insulation can lead to skin irritation, itching, redness, and even respiratory ailments when the glass fibers are inhaled. However, it is important to note that the health effects of fiberglass are generally considered to be less severe compared to hazardous materials like asbestos.

Various studies have been conducted to determine the potential health hazards associated with fiberglass insulation. While fiberglass is generally considered an irritant, the extent of its health risks is still a topic of discussion. The International Agency for Research on Cancer (IARC) acknowledges that fiberglass insulation, among other man-made vitreous fibers, can cause irritation but does not classify it as a known human carcinogen. However, it is important to note that fiberglass insulation should be handled with care and the proper protective gear to minimize potential risks.

Installation Hazards

Installing traditional fiberglass insulation can pose certain risks. The small glass fibers can cause skin irritation and itching when they come into direct contact with the skin. In addition, fiberglass particles may become airborne during installation, leading to the risk of inhalation if proper protective gear is not used. Therefore, it is crucial to wear appropriate protective clothing, including gloves, masks, and goggles, to minimize potential health risks.

Environmental Impact

Another aspect to consider when discussing traditional fiberglass insulation is its environmental impact. Fiberglass is not biodegradable and can contribute to waste accumulation in landfills. Furthermore, the manufacturing process of fiberglass insulation involves the use of energy-intensive procedures and the release of greenhouse gasses. As a result, there is growing interest in exploring alternative, eco-friendly insulation materials that are more sustainable and have a lower environmental footprint.

Safety during Removal

In cases where the removal of fiberglass insulation is necessary, caution must be exercised to prevent potential health hazards. Disturbing fiberglass insulation can release small glass fibers into the air, increasing the risk of inhalation. It is recommended to hire professionals who are equipped with the necessary expertise and protective gear to safely remove and dispose of fiberglass insulation.

Alternative Insulation Options

Fortunately, there are alternative insulation options available that offer improved safety and environmental benefits. These include soy-based materials, foam, wool, hemp, and recycled denim. These eco-friendly materials not only provide effective insulation but also offer reduced health risks and a smaller environmental footprint.

Read More: Shielding Your Property: The Power of Proper Insulation in Warding Off Summer Pests


While traditional fiberglass or blown-in insulation has been widely used for its affordability and insulating properties, it is essential to be aware of the potential health risks associated with these materials. The small glass fibers in fiberglass insulation can cause skin irritation and respiratory ailments if mishandled or not properly protected against during installation. Additionally, the environmental impact of fiberglass, including waste accumulation and energy-intensive manufacturing processes, raises concerns about sustainability. Exploring alternative insulation materials that are safer and more environmentally friendly can help mitigate these hidden dangers.

In summary, while traditional fiberglass insulation has its advantages, it is crucial to take necessary precautions during installation, removal, and disposal. By considering alternative eco-friendly insulation options, we can prioritize both our health and the environment’s well-being.

Contact Foam Insulation Solution at 888-616-8704 for the best spray foam insulation services in NJ. Say goodbye to moisture and hello to a dry and comfortable home. 


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