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InsulTEK1 fiberglass unbonded blowing insulation is designed as a loose-fill insulating system that is effective when installed in attics, walls and subfloors. It is also used in other spaces that are hard to work in or reach.

InsulTEK1 is formaldehyde free, non-corrosive, non-combustible and highly resistant to the growth of mold and fungi.

As a professional product, InsulTEK1 is installed using large, high volume blowing wool machines mounted on vans and trucks.


S P E C I F I C A T I O N S 

ASTM C 764, Type I, Category 1
Density (ASTM C 519)
Burning Classification (ASTM E 84)
Flame Spread < 25
Smoke Developed < 50
Water Vapor Sorption (ASTM C 1104)
5% or less by weight
Non-Corrosive (ASTM C 665, 13.8: pass)
Non-combustible ( ASTM E 136: pass)
Fungi Resistant (ASTM C 1338: pass)
Critical Radiant Flux >0.12 (ASTM E 970)
Odor Emmision (ASTM C 1304: pass)

 

 

FiberTEKInsulTEK1® Unbonded Loosefill Insulation

APPLICATION COVERAGE CHART FOR OPEN BLOW ATTIC: To get the desired R-Valueit is important that this product be installed in accordance with the manufacturers instructions using the correct pneumatic equipment and the required number of bags at or above the labeled minimum thickness. Failure to install the required number of bags and at least the minimum installed thickness will result in a lower insulation R-value.

R-Value
Minimum Bags
per 1,000 sq ft
Max Coverge in
sq ft per bag
Min Weight in
lbs per sq ft
Minimum Initial
Installed Thickness
Minimum
Settled Thickness

To obtain a thermal
resistance (R) of:

Bags per 1,000
sq. ft.
of net area

Contents of bag
should not cover
more than (sq. ft.):

Weight per sq. ft. 
of installed insulation 
should not be less
than (lbs):

Installed insulation
should not be
less than (inches):

Installed insulation
should not be
less than (inches):

 60

36.6 

27 

 0.990

22.00 

 22.00

 49

 29.8

 34

 0.805

 18.50

 18.5

 44

 26.6

 38

 0.720

 16.75

 16.75

 38

 22.8

 44

 0.620

 14.75

 14.75

 30

 18.

 56

 0.486

 12.00

 12.00

 26

 15.6

 65

 0.420

 10.50

 10.5

 22

 13.1

 76

 0.355

 9.00

 9.00

 19

 11.1

 89

 0.301

 7.75

 7.75

 13

 7.8

 129

 0.210

 5.50

 5.50

 11

 6.6

 150

 0.180

 4.75

 4.75