Unvented Conditioned Attic with Spray Foam Insulation Below Roof Deck Description Guide describing a method for insulating an unvented attic by spraying foam insulation along the underside of the roof deck.
Building Cavities Not Used as Supply or Return Ducts Description Guide describing the use of building cavities as supply or return ducts.
Building Science Introduction - Air Flow Description Information guide providing background information about air flow in residential buildings.