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HVAC » Tight Ducts
Transfer Grilles
Jump Ducts
No Kinks or Sharp Bends in Flex Duct Installation
No Excessive Coiled or Looped Flex Ducts
Sufficient Cavity Space for Flex Ducts
Support at Intervals for Flex Ducts
Building Cavities Not Used as Supply or Return Ducts
HVAC Ducts Shall Not Be Run within Exterior Walls
Sealed and Insulated Flex Ducts
Sealed and Insulated Metal Ducts
Sealed and Insulated Fiber Board Ducts
Insulation Levels for Ducts in Unconditioned Spaces
Total Duct Leakage
Duct Leakage to Outdoors