Minimum 5 Points Required
Platinum Level Note: Platinum level homes must use item 4.7 as well as 4 additional points from this section.

This section covers the mechanical ventilation systems in the home, including filtrations and heat recovery.


4.1   All ductwork is thoroughly sealed along all seams, joints, connections, penetrations, etc., in accordance with local prevailing code and industry best practice (2 points) and test/verify duct leakage to be less than 8 cfm (at 25 Pa) per 100 ft2 of conditioned floor area (2 additional points).



4.6   Install permanent (de)humidification control (ERVs are considered acceptable) (1 point).

Aprilaire Model 400 | Aprilaire

Pulse Humidifier System  | Desert Spring Products