Condensed Release Notes:

v3.5 includes the ability to to model IECC 2009. as well as specification of duct insulation and placement.  Some minor improvements were made to the data entry of overhang dimensions (i.e. enter inches, it converts to feet and inches for you).


v3.4 includes a selectable IECC 2006 /w Houston Amendments which includes blower door and duct blaster inputs, and includes detailed ceiling construction. v3.4 also includes everything added in v3.3 which featured 3 floors, improved ceiling models, 2 page certificates (with checklist), and external wall cladding.

Official Release Notes: