Sound Control
Celbar wall insulation effectively reduces sound transmission from walls or ceilings adjacent to entertainment centers, surround sound systems, bathrooms, and bedrooms to other rooms. The high-density insulation fills voids and creates a monolithic seal resulting in a quieter, more peaceful home. Celbar also provides a very high R-value making a home more energy efficient. Celbar is classified as a green building material, is designed to resist fire, mold, mildew and insects. Celbar has always been formulated with 100% Borate additives and is free of all Ammonia additives.
System Description
Celbar is a blend of specially prepared cellulose fibers, organic in nature, treated with adhesive and fire resistant chemicals. When sprayed in place, the interlocking fibers result in a mass that produces excellent sound and thermal properties.
Celbar is pneumatically spray-applied in wall and floor/ceiling cavities to form a monolithic coating. This process seals cracks and holes in the wallboard, around plumbing and electrical outlets, vent ducts and other irregularities. There are no compressed areas or voids to allow sound leaks, R-value reduction, or air infiltration.
Performance Where It Counts
Celbar provides superior sound transfer control demanded by building designers, owners and occupants. Celbar assemblies perform closer to lab tested STC ratings in the field than do other conventional batt and sound board systems. This is due to the complete coverage and the sealing action of Celbar.
Avoid Embarassment
Another very commonly overlooked interior application is
controlling sound transmission of falling water, running
water or other embarrassing noises. Lavatories, water
closets, utility rooms, plumbing lines can be easily insulated
against noise during initial construction.
Reduce Noise Between Floors
Celbar Wall Spray, applied between floors
of multilevel dwellings helps reduce
airborne noise such as voices, radios,
televisions and other annoying sounds.
In combination with resilient channels,
Celbar Wall Spray reduces the impact or
foot-fall noises very common in today’s
homes.
The performance of Celbar compared to other identically constructed wall systems, as documented by laboratory tests is shown below.
METAL STUD CONSTRUCTION |
| 55 |
2 ⅝" metal studs, 2 layers ⅝" gypsum board
on one side, 1 layer ⅝" gypsum board on the
opposite side: 2 ½" Celbar |
| 53 |
3" metal studs, 1 layer ⅝" gypsum board on
each side: 2" Celbar |
| 51 |
2½" metal stud 24" O.C. faced both sides with
⅝" gypsum wallboard: 1½" Celbar |
WOOD STUD ASSEMBLIES |
| 51 |
2"x4" wood studs, 1 layer ⅝" gypsum board
on each side: 3½" Celbar |
| 50 |
2"x4" wood studs, 1 layer ⅝" gypsum board
on each side: 2" Celbar |
 |

Between Floor application of Celbar |
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