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Ventilation Commissioning

Thomas Varney

Norway, Maine

BPI #5019699

SFMO #INS1116

TPI #65

Serving Parts of 

Androscoggin, Cumberland, Oxford

and Sagadahoc Counties

A test could be conducted as soon as the

house is air sealed with a continuous air barrier/smart vapor retarder membrane to assess the air tightness. The code test should be done when the building is finished.  

Save $1700 on your next blower door test by paying attention to how you build and not falling for the AeroBarrier guaranty.

CFM commissioning of exhaust fans,

  balanced whole house ventilation

and MUAS’s. Commissioning can

solve the problem of excess noise

and door slamming.

Testing can be conducted as soon

as the system is air sealed. Duct testing should be done before a blower door test as any duct leakage will add to the blower door test.

5/17/2025

One & Two Family Dwellings

Duct Leakage Testing

ASHRAE 62.2 CFM Required Rate 

Required mechanical ventilation rates for ERV's, HRV's or Kitchen and Bath fans.

Used to set CFM rate for commissioning.