At last spiral duct manufacturers have a one-step duct lining solution that meets their clients’ requirements for indoor air quality (IAQ), noise attenuation, and thermal efficiency. Armacell LLC’s AP Spiralflex™ is the first 100% fiber-free, elastomeric duct liner made specifically for spiral ducts. This all-inclusive solution eliminates the need for encapsulating films or heavy dual wall systems. Dual wall ducts have always been an imperfect, material-laden solution for achieving fiber-free, insulated ducts. Fibrous insulation must first be wrapped in film, and then sandwiched between an outer sheet metal duct and an inner perforated sheet metal surface to allow for sound attenuation. With AP Spiralflex neither wrap nor perforated inner duct is necessary because its thermal efficiency and sound attenuation comes without the fiber!
Made from highly conformable elastomeric foam, AP Spiralflex cuts easily with a sharp knife. Its smooth and flexible backing fits snugly against the duct wall, without the typical gaps that rob conventional insulation systems of their efficiency. Installation is a simple matter of forming a correctly sized AP Spiralflex tube with one glued and taped seam, then inserting it into spiral duct sections. The end result is a more precise insulation application that weighs 20% less than dual wall ducts with fiber-glass.
Sizes and Standards
AP Spiralflex is made in Mebane, NC and is available in 48” wide, (nominal) 1” thick rolls. It meets all of the following standards:
- ASHRAE 90.1-2010
- ASHRAE Standard 189.1
- IECC 2012
- California Title 24
- Meets ASTM E 84 25/50 flame and smoke rating
- GREENGUARD Gold Certified for low chemical emissions into indoor air during product usage
For additional information visit www.armacell.us.