Like batts, compressing blown-in fiberglass insulation improves the R-value per square inch while diminishing the overall R-value. Also like fiberglass batts, some amount of compression is OK if the cavity is completely filled.
While fiber glass insulation can be compressed below labeled thickness and still achieve Grade I installation, manufacturers' instructions specify installation without compression to achieve labeled R-value.
Don't squash the insulation as this can reduce its thermal performance by over 50%. Don't install loft boards directly to joists or trusses. Don't remove any insulation as this can reduce the thermal performance of the loft.
A rash can appear when the fibers become embedded in the outer layer of the skin. No long-term health effects should occur from touching fiberglass. Eyes may become red and irritated after exposure to fiberglass. Soreness in the nose and throat can result when fibers are inhaled.
Yes, uncovered fiberglass insulation can be dangerous to breathe. The tiny glass fibers can become airborne and irritate the respiratory system if inhaled. Exposure may lead to coughing, throat irritation, and other respiratory issues. Prolonged exposure can potentially cause more serious health problems.
Short-term Exposure
The symptoms of irritation are often nonspecific, temporary, and may include itching, coughing, or wheezing. High levels of exposure to airborne fiberglass may aggravate existing asthma or bronchitis-like conditions.
Another good reason to remove that old, ineffective insulation in your home has everything to do with keeping your family healthy. Fibreglass and cellulose are known to retain allergens. These issues can lead to health problems, which is something you want to avoid.
Any exposed skin area should be washed with soap and warm water to remove fibers. Clothing worn while working with fiberglass should be removed and washed separately from other clothing. The washing machine should be rinsed thoroughly after the exposed clothing has been washed.
Air Leakage
Fiberglass insulation is less dense than other types of insulation and does not create an airtight seal, which means air can travel freely through the insulation. This is called air leakage and it's one of the most common sources of energy loss in a house.
Health hazards of interacting with exposed insulation include: Risks of skin, eye and lung irritation. Potential for mold and mildew growth. Risk of increased health problems for kids, as uncovered insulation isn't child-proof.
Squashing your insulation reduces its effectiveness by 50%
Numerous studies on the topic have indicated that there's a huge number of Britons who don't understand why doing this is so problematic. Mineral wool type insulation (the most common loft insulation) needs to retain its full depth in order to work effectively.
While touching fiberglass doesn't usually lead to long-term effects on your health, exposure to it may cause intense itching, redness, or a rash. So, it's important to remove fiberglass from your skin as soon as possible so it doesn't come in contact with your eyes, nose, or throat.
Like batts, compressing blown-in fiberglass insulation improves the R-value per square inch while diminishing the overall R-value. Also like fiberglass batts, some amount of compression is OK if the cavity is completely filled.
Avoid aggressive scraping or pulling that could create dust. Also, avoid pulling or lifting the insulation towards you. We recommend using a vacuum specialized for removing loose fill insulation.
8¼ ” thick, R-30C EcoTouch® Thermal Batt insulation prevents moisture damage and helps assure long roof life by providing 1" of ventilation air space between the insulation and roof deck. Easy Installation R-30C EcoTouch® Thermal Batt insulation is easy to handle and install.
Fiberglass insulation can deteriorate and release tiny airborne fibers into the surrounding environment as it ages. These microscopic fibers can quickly become airborne and be inhaled or settle on surfaces, posing a risk of inhalation or skin irritation.
Common Lifespans of Different Attic Insulation
Natural materials will inevitably degrade faster than synthetics, and some high grade synthetic materials can last virtually indefinitely if well taken care of. Fiberglass Insulation--The actual lifespan of this commonly used attic insulation is from 80-100 years.
In general, the color of insulation doesn't equal better performance over another color. Whether it's pink, white, brown, or yellow—color doesn't influence dependability, reliability, or the products effectiveness.
Like asbestos, fiberglass poses some health risks, but these are less serious than those associated with asbestos. Asbestos is widely recognized as a carcinogen and a leading cause of mesothelioma. Whether or not fiberglass is carcinogenic has been debated for decades.
A fiberglass rash typically looks like a patch of small blisters with dry, flaky skin. On pale skin, the inflammation will be red. If long glass fibers get stuck in the skin, a person may see them protrude from the surface.
Brushing against, moving or touching the insulation can dislodge those glass fibers, allowing them to lodge into skin, eyes, and be breathed in to irritate the throat and lungs.
You cannot throw old insulation away because you need to dispose of it properly so you don't cause environmental harm. Fortunately, many waste management companies will relieve you of your old insulation and dispose of it safely. You may have to pay a processing and handling fee, but these are usually minimal.
Misused & Susceptible to Water
Often fiberglass insulation is misused when it's installed. An example of misuse is when it is installed in a basement ceiling. Fiberglass insulation is easy for air to move through and it loses a high percentage of its R-value when it gets water into it.
Most insulation materials cannot be disposed of in regular waste or recycling, you'll instead need to find your local household waste recycling centre and take it there. In some cases, you may have to engage the services of a professional waste remover.