Blown-in insulation is a type of insulation material that is blown into cavities in walls, attics, and other spaces using a special machine. It consists of loose, small particles such as cellulose, fiberglass, or mineral wool that settle to form a dense layer, providing thermal resistance.

The most common types of blown-in insulation are:

• Fiberglass: Made from glass fibers, it is non-combustible and moisture-resistant.
• Cellulose: Made from recycled paper products, it is eco-friendly and provides good thermal resistance.
• Mineral Wool (Rock Wool): Made from natural rocks or minerals, it has excellent fire-resistant properties.

Blown-in insulation can be more effective than fiberglass batts because it fills gaps and hard-to-reach areas more completely. It also has fewer seams, reducing the risk of air leaks. However, fiberglass batts may still be more suitable in certain applications like between wall studs.

Blown-in insulation is commonly used in attics, wall cavities, floors, and other hard-to-reach spaces. It’s ideal for retrofitting existing homes where removing drywall or other materials to install batt insulation would be difficult or costly.

Yes, blown-in insulation can significantly reduce noise between rooms and from outside. Its density and ability to fill small gaps make it effective at dampening sound, which can be a big advantage in noisy environments.