Ventilation
Minimum 5 Points Required
This section covers the mechanical ventilation systems in the home, including filtrations and heat recovery.
4:1 All ductwork joints and penetrations sealed with low toxic mastic or aerosolized sealant system (2 points)
4:6 Install permanent (de)humidification control (ERV's are considered acceptable) (1 point)
Aprilaire Model 400| Aprilaire
