Cellulose Insulation: Technical Specifications
Scope
1.1 This specification provides data related to AFT cellulose insulation. AFT provides
resistance to heat flow for thermal applications, noise control for acoustical treatments
and fire control in walls and attics of residential and commercial construction.
Materials
2.1 More than 85% of the content by weight of AFT cellulose insulation is processed from
recycled wood-based cellulose fibers. These fibers are chemically treated to create fire
resistance. The additives are non-toxic, will not irritate normal skin, will not attract
vermin or insects, and will not adversely affect other building materials. AFT complies
with Section 6002 of the Solid Waste Disposal Act, as amended by the Resource Conservation
and Recovery Act of 1976.
Functions
3.1 AFT insulation resists heat flow by
1.) trapping air within and
2.) between fibers creating significant resistance to air movement.
When applied, AFT cellulose insulation creates a "blanket" filling all spaces, which
is impractical to achieve with batt materials.
Material Characteristics
4.1 All cellulose insulation sold in the U.S. must conform to the
Consumer Products Safety Commission standards
16 CFR parts 1209 and 460. In addition, AFT meets all of the test requirements of ASTM C-739.
4.1.1 - Density
The density anticipated after long-term settling of dry applications was determined by
the following specification: ASTM C-739
4.1.2 - Thermal Resistance
The average thermal resistance per inch was determined by test method:
ASTM C518 (4 inch thick)
3.80 (R-value/inch)
4.1.3 - Surface Burning Characteristics
Two surface burning characteristics are evaluated. They are Critical Radiant Flux
using ASTM C-970 and Flame Spread using ASTM E-84. AFT meets or exceeds the
requirements for these tests.
ASTM E-970 - Greater than 0.12 watts/cm2
ASTM E-84 - Less than 25
4.1.4 - Smoke Developed Index
ASTM E-84 - Less than 50
4.1.5 - Moisture Vapor Sorption
AFT meets the ASTM C-739 requirement of less than 15% maximum weight gain.
Normal relative humidity variations will not adversely affect the insulation.
4.1.6 - Non-Corrosiveness
When in contact with steel, copper, aluminum, or galvanized materials, AFT was
determined to be non-corrosive per ASTM C739.
4.1.7 - Other Properties Tested
Additional ASTM C-739 tests passed include:
Odor Emission, Smolder Resistance and Fungi Resistance
4.2 - Building Codes
Properly installed AFT cellulose insulation meets the requirements for thermal
insulating materials as contained in BOCA, CABO, ICBO, SBCCI, ICC, IEC, IBC, IRC,
and the Model Energy Code. Complies with HH-I-515E.
4.3 - Fire Blocking
In wall cavities, AFT insulation is permitted as a fire block under Section 717.2.1
of the IBC when installed to a minimum depth of 14.5 inches.
4.4 - Sound Transmission
The installed density of any cellulose insulation creates a noise control "blanket".
Effective sound control requires wall and ceiling systems to be air tight including
entire perimeter to prevent sound flanking. Refer to Section III of GA-600-2003 Fire
Resistance Design Manual (17th Ed.) Insulation materials add 3 to 5 db of noticeable
sound resistance to uninsulated walls.
Product Certification
Product certification by an independent third party NVLAP accredited laboratory.
Installation
Installation to follow the Cellulose Insulation Manufacturers Association (CIMA)
technical bulletins #2 "Standard Practice for Installing Cellulose Building Insulation",
#3 "Standard Practice for the Installation of Sprayed Cellulosic Wall Cavity Insulation",
and #5 "Guide for Installation of Cellulosic Fiber Stabilized Thermal Insulation".
Professionally installed cellulose insulation provides:
SUPERIOR COMFORT ALL YEAR LONG
SUPERIOR ACOUSTICS
SUPERIOR ENERGY SAVINGS
SUPERIOR FIRE RATING
Cellulose....it's naturally better insulation
CIMA Technical Bulletins & Updates:
R-TEK Insulation is your insulation contractor of choice.
If you have any questions regarding commercial or home insulation please do not hesitate
to call us at: (330) 753-8394. We will be more than happy to assist you.
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