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Thermal and Acoustical Product Information

Thermal Resistivity

The primary property of all thermal insulation, cellulose fibre provides greater energy savings over other products since it is made with natural wood fibre. By virtue of the fact that wood fibre is organic (i.e. poor conductor) and the fact that the fibre is also hollow (i.e. entraps air within its structure), the product is naturally resistant to heat loses through conduction and convection. The product also has the unique ability to perform better under extreme cold temperature. Specifically, it has been shown that R-values can increase as much as much as 7% under extreme cold conditions whereas fibreglass can lose as much as 21% under the same conditions (ASHRAE “Handbook of Fundamentals”, BNL 50862). Similarly, cellulose fibre’s basic R-Value is superior to mineral fibre in the higher ambient temperature range and thus makes it a preferred insulation for reducing summer cooling costs. Cellulose fibre maintains an almost constant R-Value over the full range of densities at which it can be installed, whereas mineral fibre products suffer dramatic losses in R-Value as the installed density decreases.

Infiltration/Convection Properties

(Natural movement of air either by convection of air from warm to cold environments or movement by pressure differential). Cellulose fibre, due to its perfect fit and greater density, inhibits air movement; whereas tests have proven that air movement through and around light density, poorly fitted fibre glass insulation can reduce its thermal effectiveness by up to 50%.

Fire Resistance

Cellulose fibre exhibits a fire resistance capability identified in the physical properties chart. Cellulose fibre will not melt or degrade as most other insulation will when exposed to flame or high temperatures. Because cellulose fibre will only char under direct fire exposure it will provide longer heat protection to adjacent building materials, and therefore allow building occupants more time to escape than would be the case with most other insulation materials.

Moisture

Cellulose fibre has the unique ability to slowly absorb and dissipate excess moisture thereby reducing the risk of potential condensation problems. Canadian homes and buildings can experience loss of warm moist air from interior environment to the colder exterior air by several means such as ripped, unsealed or discontinuous vapour barrier, or by piping or electrical wiring and boxes penetrating the vapour barrier. During the heating season, these disruptions to the vapour barrier permit escaping warm air to condense within the insulation layer or on the cold roof or wall sheathing. To combat this occurrence, insulation should be used which exhibit an ability to absorb and slowly dissipate that moisture. Cellulose fibre’s ability to transport moisture to a surface where it can evaporate is most important in keeping moisture levels low and insulation effectiveness high.

Acoustical (Sound) Properties

Cellulose fibre, compared to other insulation products, has superior properties for improving noise suppression in wall, floor or ceiling construction. There are four performance factors to consider; mass, damping, absorption and sealing.

(a) Mass (Density): Increased mass per unit thickness of cellulose fibre compared to other fibrous or foam insulation adds to the overall effectiveness of a wall, floor or ceiling assembly by reducing the transmission of lower octave sounds.

(b) Damping: Unlike fibrous batts or foam boards, cellulose fibre incorporates itself as an integral part of a wall, roof or ceiling assembly. The natural ability for cellulose fibre to fill crevices and gaps produces a significant improvement in the sound damping characteristics of the assembly.

(c) Absorption: Cellulose fibre, because of the unique porosity of its interwoven fibres, will exhibit a NRC (Noise Reduction Coefficient) of 0.75 at a 25 mm (1 inch) thickness. Increased attenuation in both low and high frequency range is achieved due to absorption within an enclosed wall or ceiling cavity.

(d) Sealing: Field reliability of cellulose fibre natural noise reduction capabilities is realized through its natural ability to fill crevices and voids normally occurring in wall, floor, ceiling or attic construction. Cellulose fibre will completely seal around complex shapes such as pipes, conduit and electrical boxes thereby ensuring its ability to minimize sound transmission through such interruptions.

THERMO-O-SPRAY PRODUCT DATA (click here to open in .pdf format)

Solubility: Paper fibre negligible, borates moderate Fire or Explosion: Not applicable Hazard:

Primary routes of entry: Inhalation, skin and eye contact Effects of Exposure (Symptoms)

Conditions to avoid: - Contact with acetic anhydride, elemental potassium or zirconium

The information and recommendations contained herein are based upon data believed to be correct. However, no guarantee or warranty of any kind expressed or implied is made with respect to the information contained herein.

For a FREE Rough Estimate Over the Phone Call Rich At:

Tel: 613-385-1109 or Toll Free: 1-800-263-2768

Cellulose Insulation Manufacturers Association of Canada
38-10, Place du Commerce, #255,
Îles des Soeurs
Montreal, Quebec H3E 1T8
1-800-515-1024
www.cellulose.ca

Cellulose Insulation Manufacturers Association (USA)
136 S. Keowee St.
Dayton, OH 45402
U.S.A.
1-888-881-2462 or 1-937-222-2462
www.cellulose.org

National Research Council of Canada (NRC-CNRC)
1200 Montreal Road
Ottawa, Ontario
K1A 0R6
Phone: 1-877-672-2672
Registry of Product Evaluations

Kingston Home Builders Association
1575 John Counter Blvd.
Kingston, Ontario
K7M 3L5
Phone: 613-547-0986
www.khba.ca