Recommendations
- Always complete an air seal verification at Rough – to ensure a successful blower door test result at final
Basic Guidance
Preparing Site for Duct Blaster Testing: Please ensure that the following steps have been completed before our scheduled site visit:
- Install all ducts and air handlers
- Inspect for missing / disconnected ducts
- Seal floor supply covers to subfloor with tape or mastic
Preparing Site for Blower Door Testing: Please ensure that the following steps have been completed before our scheduled site visit:
- Ensure that all caulking and sealing of interior trim, lighting, and exhaust fans (to drywall) has been completed.
Other Good Practices that we Recommend
Design
- ACCA Manual J, D, and S review - to verify that HVAC ducts and equipment are properly designed, and sized.
Rough
- Exhaust duct size and installation quality verification - to ensure that exhaust fans will perform to the design specifications (ASHRAE Standard 62.2).
- HVAC supply and return duct sizing verification – to minimize the risk of hot and cold rooms
Final
- Exhaust air flow testing - to ensure that exhaust fans will perform to the design specifications (ASHRAE Standard 62.2).
- Supply air flow testing – to minimize the risk of hot and cold rooms.
- Static pressure testing – to verify that HVAC system is operating efficiently.
- Room air balance testing - to verify that each bedroom has sufficient supply and return air flow.