Condensation Control for Walls in Cold Weather Description Guide describing ways to construct wall assemblies in cold climates to minimize the likelihood of condensation formation inside the walls.
Ducts Buried in Attic Insulation Description This guides describes buried ducts in loose-fill attic insulation, a method that can only be used in dry climates.
Ducts Buried in Attic Insulation and Encapsulated Description This guide describes approaches to buryng and encapsulating ducts in unconditioned attics to increase the overall R-value of duct insulation.