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Ventilation Verification Services

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. 

CFM verification of exhaust fans and make up air systems.  ERV/HRV whole house ventilation determined by ASHRAE 62.2 2019 and RED Calc.  Make up air is required for range hood fans over 400 CFM if a heating appliance that does not use a fan driven exhaust is present.

REScheck Compliance Services

REScheck Energy Program can be configured to use many different paths to compliance. Each path can then be compared for the most practical and cost effective construction.

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.

ASHRAE 62.2  Services

The RED Calc Tool should be completed

before construction begins. This will give you the amount of ventilation needed to provide a rate to keep the occupants healthy. This can be through exhaust from bath fans and range hood fans. Alternately it can be through whole house balanced ventilation with an ERV. The Required mech vent above will give you the cfm rating for sizing the equipment. The sizing should account for the static pressure of the ductwork with room for the boost mode. Stand alone ductwork for the ERV is recommended. The self balancing ERV should have motorized intake/exhaust dampers that close and the ERV fan shuts off when it receives a signal from the MUA. The self-balancing MUA can adjust to supply the CFM needed for the clothes dryer and bath fans if they turn on. A heat pump clothes dryer should be considered to prevent a lack of make up air from affecting the drying time.

3/13/2025

One & Two Family Dwellings

Duct Leakage Testing

Third Party Inspections

Chapter 6: MUBEC- Energy Code

For Clients and Municipalities

MUBEC required TPI reports:

Notice of Construction Documents Approval

Notice to Proceed

Modification of Construction Documents

Inspection Reports of all Site Visits

Reports of any Noncompliance and Remediation

2021 IECC Energy Efficiency Certificate

ENERGY CODE - RADON - VENTILATION