Blown-In Insulation

Blown-in insulation provides fast, thorough coverage for attics, wall cavities, and hard-to-reach spaces, boosting energy efficiency, comfort, and sound control. Unlike batt products, loose-fill fibers contour around wiring, pipes, and framing, creating a continuous thermal blanket that helps reduce drafts, heat loss, and summer heat gain. Whether you choose cellulose, fiberglass, or mineral wool, the goal is a higher R-value per inch and even distribution across the entire area.

This category features the tools and supplies that make the job smooth and professional. Insulation blowers with high-output motors, durable hoppers, and long hoses deliver consistent fiber flow for both open-blow and dense-pack applications. Look for contractor-grade machines with adjustable air gates, dual impellers, and remote start/stop for better control at the nozzle. Accessories such as wall fill nozzles, netting, depth markers, rulers, and attic baffles help you achieve target R-values and maintain ventilation at soffits. You’ll also find bags of cellulose and fiberglass loose-fill with clear coverage charts, along with staplers, tapes, and spray adhesives to secure netting. Many users rent an insulation blower for a day, pair it with quality PPE—N95 or P100 respirators, goggles, gloves, and coveralls—and complete an attic in hours.

For best results, air seal first around penetrations, top plates, and recessed lights, then blow to the specified depth using attic rulers. Keep insulation clear of non-IC-rated fixtures and maintain clear airflow from soffit to ridge with baffles. Measure square footage, consult the product coverage chart, and set machine feed and air to avoid over-densifying open areas. In walls, use dense-pack techniques to prevent settling. Whether improving an older home or finishing new construction, blown-in insulation tools help lower utility bills, stabilize room temperatures, and meet local energy code R-values with clean, efficient installation. They also support quick retrofits with minimal mess and tight quality control.