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Textile Ducts
Textile ducts are used for draught-free air distribution and delivery of conditioned air instead of traditional spiral or rectangular steel ducts with grilles and diffusers. The system can be suspended on virtually any type of ceiling as the fabric only weighs approx. 300 g/m2. The system is very flexible and can be tailored to all possible dimensions, shapes and lengths for almost all types of rooms

In open ceiling architecture, traditional metal duct systems discharge air through side mounted metal diffusers usually spaced 10 to 15 feet apart. The air is directed to specific zones resulting in less efficient mixing of air in the occupied space and often causing drafting and hot or cold spots.

With a Fabric Duct System, the air is discharged more uniformly along the entire length of the DuctSox System providing consistent and uniform air dispersion in the occupied space.

Flame Spread / Smoke Development

Below are the related fire code requirements for fabric duct distribution devices. Fabriccuct systems are in accordance with the ASTM International fire test response standard E 84-01, Surface
Burning Characteristics of Building Materials, as both a duct and diffuser. The National Fire Protection
Association (NFPA) has concluded that the following fire codes have been met:

? NFPA 9OA-1993, "Installation of Air Conditioning and Ventilation Systems

? NFPA 9OB-1993, "Warm Air Heating and Air Conditioning Systems"

? NFPA 255, "Standard Method of Test of Surface Burning Characteristics of Building Materials"

Description of requirements

Flame spread/Smoke development must not exceed 25/50 rating. This rating and the ASTM E 84 test
method are typical to UBC 8-1 and UL723. These requirements are also consistent with flame/smoke
indices set by the Uniform Mechanical Code for the various pipe insulations, duct insulations, and other
combustibles used in air handling plenums.


Torsion, collapse, air leakage and impact are related only to sheet metal duct. Fire code is the only relevant
requirement in most cases, except for USDA and similar applications. UL 181 mentions fire code
and torsion/collapse/impact indices, but only the fire code is relevant in our case as Fabircduct is “a
combination flexible air duct and air diffuser for exposed-ceiling applications to be used as a positive
pressure air distribution component".
Textile (Fabric ) Duct manufacturers
KE Fibertec AS
DuctSox Systems
McGill AirFlow
HERO FabriDuct
Pavesi and Associates, Inc




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