BIBS: Blown-In Blanket System
Expert Insulation Solutions
BIBS uses blown fiberglass installed behind a mesh fabric, allowing the insulation to fill wall cavities evenly and densely. Unlike batts, it conforms to wiring, pipes, and irregular shapes, improving energy performance and reducing drafts.
Why people choose it:
Higher density = fewer cold spots + better energy efficiency.
Where it’s used:
-
High-performance homes
-
New construction
-
Sound-sensitive walls (apartments, studios)
-
Deep wall cavities
Benefits:
-
Cost-effective for large areas
-
Straightforward installation
-
Mineral wool offers fire resistance and better sound absorption
-
Good performance when cavities are uniform
Best for:
People building or renovating long-term homes who want a more efficient wall system.
How it’s installed (simplified):
-
Staple mesh to studs
-
Blow fiberglass behind mesh
-
Trim and seal openings
-
Install drywall
Considerations:
-
Requires trained installers
-
Not suited for open attic floors
-
Slightly higher cost than batts





