Yes, you can remove blown-in insulation by hand for very small areas like a closet or a small ceiling repair. However, for entire rooms or attics, doing it by hand is incredibly slow, dusty, and physically exhausting. It is highly recommended to use an insulation vacuum.
The easiest and cleanest way to remove blown-in insulation is by using a specialized gas-powered insulation removal vacuum (which can be rented from local tool shops or home improvement centers). This approach suctions the insulation out of your space and deposits it directly into giant disposal bags or a dumpster, eliminating the mess of scooping it by hand.
Removing blown-in insulation costs between $𝟏 and $𝟐 per square foot on average for labor and disposal, or $𝟏,𝟓𝟎𝟎 to $𝟒,𝟎𝟎𝟎 for a standard-sized attic. The process requires specialized heavy-duty vacuum equipment to safely extract and bag the loose particles.
These factors can create a task that is too much for a homeowner to take on alone. Another reason we recommend working with a professional is for air-sealing. Yes, you could technically install blown-in insulation yourself. But if you work with a professional contractor, you could have your attic air-sealed.
Not always made with zonolite, vermiculite, or asbestos, manufacturers also made loose-fill and blown-in insulation with other materials. Sometimes it contains cellulose, fiberglass, and mineral wool.
While there is no completely safe level of asbestos exposure, a single 30-minute exposure is generally considered low-risk and highly unlikely to cause illness. Asbestos-related diseases, such as mesothelioma and lung cancer, are typically linked to heavy, long-term or repeated occupational exposure over many years.
Potential Allergy and Irritation Concerns – For individuals who are allergic or sensitive to newspaper ink or chemical fire retardants, blown-in cellulose can cause irritation. Blown-in cellulose's potential for mold and mildew can also lead to health issues and discomfort.
Mice are curious and always searching for safe, snug, and warm nesting sites. Attics filled with blown-in insulation provide an excellent option–from the mice's point of view. As long as there is a ready food source. Mice are omnivorous and will eat and chew on almost anything including wood and electrical wires.
In a 1,500-square-foot attic, it could take 6 to 15 hours to remove the cellulose with the proper equipment. It's going to be an extremely long and dirty process. With every bag you fill, make sure to squeeze out the air inside before tying the bag shut.
Ten inches of cellulose insulation yields a total R-value between R-32 and R-38. This is because loose-fill cellulose typically provides between R-3.2 and R-3.8 per inch, though some premium dense-pack products can reach R-4.0 per inch.
What time of year is Insulation cheapest?
If your old blown-in insulation is contaminated, water-damaged, or underperforming, removal is not only wise—it's necessary. Even if it appears intact, an assessment may reveal that replacement would yield much better thermal and energy results in the long run.
Most homeowner's insurance policies generally do not cover the expenses of regular maintenance or voluntary attic restoration for non-insurable reasons, such as adding living space or increasing the home's value. Your homeowner's insurance policy may provide specific coverage limits for certain types of damage.
We use a product called DSV for this important step. DSV is a Disinfectant, Sanitizer, and Virucide. When sprayed or fogged in your attic, it kills the odors left behind from the urine, feces, and afterbirth of rats, mice, squirrels, and bats.
Because spray foam can trap moisture, hide the condition of the roof, make it difficult for surveyors to inspect, which means risks like timber decay, dry rot, and not forgetting increased fire risk. If you've got it or you're buying a property that does, this is something you need to know upfront.
Fiberglass particles typically stay airborne for 1 to 2 hours in still air. However, smaller particles or those caught in drafts can remain suspended much longer. The glass fibers will quickly fall out of the air if not disturbed, but they can be easily kicked back up if they settle onto floors or furniture.
Blown-in attic insulation should generally be 10 to 14 inches deep to achieve an R-38 value, or up to 16 to 18 inches deep to reach an R-49 value. The exact depth depends on your local climate, whether you are using cellulose or fiberglass, and if you are topping off existing insulation.
Ultimately, while spray polyurethane foam itself does not feed mold and mildew, results depend on how well the entire building envelope manages moisture. Preventing mold issues isn't just about choosing the right insulation material – it's about ensuring proper design, installation, and ongoing maintenance.
If you're dealing with blown-in insulation, a vacuum designed for insulation removal will be useful. Carefully suction out the insulation using the vacuum, making sure to collect it in sealed bags. This keeps your attic clean and prevents debris from spreading.
The Amish control mice through non-chemical, self-sustaining methods, relying on active trapping, natural scent repellents, and structural exclusion. Rather than using commercial poisons, they focus on physical barriers and natural predators to keep rodent populations in check.
Potential problems with spray foam insulation
reduce air circulation and ventilation within a roof space. lead to dampness and condensation on the underside of a roof because it forms an air barrier and stops moisture from escaping. place timber-framed roofs at risk of decay.
Closed-cell spray foam and rigid foam board are hard, unattractive to rodents, and double as air barriers. Mineral wool is dense enough to discourage nesting. Fiberglass batts, especially in crawl spaces and attics, are essentially an open invitation.
The healthiest, non-toxic insulation for your home is natural sheep's wool or hemp insulation. These materials contain no chemical binders or formaldehyde, actively regulate indoor humidity to prevent mold, and do not off-gas.
Yes, cellulose insulation significantly deters mice when compared to traditional materials like fiberglass. It acts as a physical and chemical barrier in a few key ways:
Direct contact with fiberglass or breathing airborne dust containing fiberglass may irritate the skin, eyes, nose, and throat. The symptoms of irritation are often nonspecific, temporary, and may include itching, coughing, or wheezing.