| Ventilation and air distribution system: Ventilation system must be verified to comply with the ERV/HRV requirements or balanced ventilation system. Whole-house ventilation fan efficacy must be verified by visual inspection. Not less than 20% of installed automatic or gravity dampers, and a minimum of one of each type, must be visually inspected and physically tested for proper operation. |
TR-8 Ventilation and Air Distribution System(IB2)
$500.00