In FabFlow™ the air exits the duct through the permeable fabric surface. The air is driven by thermodynamic forces preventing drafts in the occupied zone, which results in a high level of comfort.
Surface flow models distribute the air through the surface of the duct either through permeable fabrics or microperforations covering a minimum of 25% of the surface.
These flow models are often used as secondary flow in combination with a directional flow model.
Microperforations may cover between 25% to 100% of the duct’s surface area.
Surface flow technology is often used to prevent dust and other particles from accumulating inside or on the duct’s surface, making it virtually maintenance-free.
Surface technology also prevents condensation from forming in or around the duct’s near zone.