Tap Draw, pick Outline (perimeter), then trace the building's outer perimeter.
You'll mark the conditioned space and other zones after.
Address keys this sketch to the assessment — it labels the printout and is written into the export so this file lines up with the walkthrough and CAZ data for the same house.
Feeds the energy-model (HPXML) export. Set which compass direction the top of the sketch faces, ceiling heights, and roof pitch. Window facings are already true compass directions and are not affected.
One row per window. Pick the facing, enter width × height in inches, and set quantity for identical units — area is computed. Per-orientation totals roll up below.
Count fixtures & penetrations — can lights, fans, registers, etc.