Fiberglass BIBS Insulation System Cost Comparison
When compared to standard fiberglass batt, BIBS offers higher R-values and consistent coverage, which can make BIBS slightly more expensive to install. When considering long-term energy savings, however, a BIBS insulation system can easily provide a positive return on investment. BIBS is usually less expensive than spray foam insulation. As a cost-effective high-density option, BIBS is a good option for large insulation projects.
Fiberglass BIBS Insulation vs. Blown-In Cellulose
Another form of blown-in insulation uses plant-based cellulose fibers, an eco-friendly insulation option. Blown-in cellulose has a slightly higher R-value and better air filtration rate than its fiberglass counterpart. Fiberglass BIBS, however, offers cost savings and may hold up better over time.
Fiberglass is cleaner to install and any dust created during installation is much easier to manage. Fiberglass BIBS also installs faster and blows further than cellulose, which means installers can reach difficult areas of your attic more easily. Fiberglass BIBS holds its shape and won’t shift over time, while cellulose may shift over time, causing gaps or uneven coverage in your insulation.
Blow-In Blanket Systems are a popular choice for sidewalls, floors, and cathedral ceilings. BIBS is installed in new construction or existing homes with exposed wall stud cavities. Homes can be retrofitted to accommodate BIBS insulation, though this may require some light wall renovation, old insulation removal, and interior wall cleaning.
BIBS requires special equipment to blow the fiberglass wool into a pre-installed insulation fabric “netting.” The insulation fabric is fixed around the frame of the wall or cathedral ceiling to be filled. Technicians make an installation hole in the barrier fabric to fill the cavity. Using a pneumatic blowing system, technicians then fill the entire cavity, including behind and around electrical wires, plumbing, and other obstructions. This process reduces the need for measuring, cutting, and seaming rigid insulation or batt pieces. The fabric insulation netting also reduces installation mess and simplifies contractor cleanup.