6.3.1 Prescriptive Path: Dwelling unit ductwork meets the location and insulation requirements specified in the ENERGY STAR Multifamily Reference Design.

See the following guides for relevant information.

Sealed and Insulated Flex Ducts

Sealed and Insulated Fiber Board Ducts

Sealed and Insulated Metal Ducts

Ducts Buried in Attic Insulation and Encapsulated

Encapsulated Ducts

Ducts Buried in Attic Insulation

Unvented Attic Insulation

Unvented, Insulated Crawlspaces

Unvented Conditioned Attic with Spray Foam Insulation Below Roof Deck

Ducts in Dropped Ceilings

Ducts in Raised Ceiling Sections

No Ducts or Air Handlers Located in Garage

Ducts in Interstitial Floor Framing