Can cellulose insulation be blown in?

Yes. In existing structures, cellulose is often blown into the wall cavity through the wall sheathing. For new construction, cellulose is typically damp-sprayed or installed dry behind netting. Damp-sprayed cellulose is usually ready for wall covering within 24 hours. Cellulose can also be blown dry into netting installed over building cavities. The best insulation usually has less to do with the type, and more to do with the application. Proper installation of insulation completely fills the cavity you’re insulating. Cut-rate insulation contractors may leave voids or gaps in coverage that kill your insulation’s performance.

Is blown insulation safe?

If you’re working in your attic, it’s important to take precautions to protect your eyes, skin, and lungs. Wear goggles to protect your eyes from insulation, not safety glasses, since safety glasses can let dust in. Wear gloves and a disposable dust mask, too. Fiberglass insulation is made with glass fibers that can irritate the skin.

Blown-In Insulation in Boise, ID

Blown-in insulation getting installed in an attic in Boise, ID

Looking for an affordable way to boost your home’s energy efficiency and comfort? Big City Insulation of Idaho provides professional blown-in insulation services in Boise and throughout the Treasure Valley. Our experienced insulation contractors work on older homes, new builds and commercial projects. We’ll help you improve thermal performance and lower your energy costs.

Blown-in insulation is one of the most effective solutions for attics, wall cavities, garages, crawl spaces and other hard-to-reach areas. We install it with specialized equipment, so it fills the gaps and voids that traditional insulation often misses. The result is a more complete thermal barrier.

Why Choose Blown-In Insulation?

Blown-in insulation, also called loose-fill insulation, gives you excellent coverage and energy efficiency. Traditional batt insulation comes in pre-cut panels. Blown-in fiberglass insulation is different because it conforms to irregular and hard-to-insulate spaces.

Common applications include:

Attics: Fills gaps and hard-to-reach areas for better coverage
Walls: Great for retrofit projects and new builds using BIBS (Blow-In Blanket System)
Basements & Crawl Spaces: Helps regulate temperature and moisture
Garages & Additions: Boosts comfort in under-insulated areas

Benefits of Blown-In Insulation

Homeowners and builders throughout Boise choose blown fiberglass insulation because it offers numerous benefits, including:

Lower Energy Bills: Proper insulation helps reduce heat loss during the winter and keeps unwanted heat out during the summer.
Improved Indoor Comfort: Cold spots, drafts, and temperature fluctuations can make a home uncomfortable. Blown-in insulation helps create more consistent temperatures throughout the building.
Better Sound Control: Fiberglass insulation can help reduce sound transmission between rooms and from outside noise, creating a quieter indoor environment.
Moisture Resistance: Fiberglass insulation does not absorb moisture like some other building materials, helping reduce the risk of mold and mildew growth when installed properly.
Long-Term Performance: Blown-in fiberglass insulation is durable, requires little maintenance, and continues to deliver energy-saving benefits for years.

Blown-In Insulation for Homeowners & Builders

Our team works with a wide range of customers throughout Boise, Meridian, Nampa, and nearby communities.

We provide blown-in fiberglass insulation services for:

Existing homes
Home renovations and additions
New construction homes
Multifamily properties
Commercial buildings
Metal buildings and shops

No matter the size of your project, we can recommend the right insulation solution to meet your comfort, energy-efficiency, and budget goals.

Professional BIBS Insulation Installation

For wall applications, Big City Insulation of Idaho offers the Blow-In Blanket System (BIBS). This advanced insulation method uses a fabric mesh to hold fiberglass fibers in place while filling wall cavities completely.

Because BIBS insulation conforms around electrical wiring, plumbing, and other obstructions, it creates a seamless blanket of insulation with fewer gaps than many traditional insulation systems. The result is improved thermal performance, enhanced energy efficiency, and greater comfort throughout the structure.

Tech installing insulation

Frequently Asked Questions

What’s the difference between blown-in Insulation and batt insulation?

Batt insulation comes in pre-cut panels. Blown-in insulation is loose-fill material that goes in with a blowing machine, so it fills gaps, corners and irregular spaces that batts can miss. That makes it a great fit for attics, retrofits and hard-to-reach areas in Boise homes. ENERGY STAR recommends loose-fill insulation for attic floors, existing walls and other hard-to-reach areas

Can cellulose be used for blown-in insulation instead of fiberglass?

Yes. Cellulose is another loose-fill option for blown-in insulation, and it’s often used in wall cavities. Our team will help you choose the best material for your home or building based on your space, goals and budget.

Is blown-in insulation safe?

Yes. Blown-in fiberglass insulation is non-combustible and moisture resistant. Our installers wear protective gear and follow proper safety practices, so your blown-in insulation goes in cleanly and safely.

Ready to Insulate Smarter?

Contact Big City Insulation of Idaho for a free estimate or to schedule your insulation upgrade. We proudly serve Boise, Nampa, Meridian, and surrounding communities.