What does a Home Energy Audit consist of?
2. "E" Audit - This is the post-retrofit evaluation which is performed to verify all of the recommended upgrades have been completed. This evaluation includes taking pictures of the upgrades, taking notes on the mechanical systems, and preforming a second Blower Door test to assess air sealing improvements. The 'E' Audit must be performed within 18 months of the initial 'D' Audit or by March 31st, 2011 (whichever comes first).
How Much Does a Home Energy Audit Cost?
The Blower Door Test
The Blower Door is a vital component of the Home Energy Evaluation and is used to collect information that is integral to your homeâs energy efficiency.
The test enables EnWise to asses the following two points:
Air change rate of a home - A high Air Change Rate indicates high air flow through holes in the building envelope or a leaky, drafty house.
Leakage area of a home - This indicates whether the house is tight or leaky and whether or not it requires weatherization or insulation. A leaky house may be equal to having a window open fully at all times of the year.
| Test Process: |
1. A 50Km/hr wind is simulated against the home by depressurizing the house with a Blower motor. This enables us to highlight the areas of greatest air infiltration. An EnWise EA will then enter this critical information in our Data sheets. 2. Blower door results and their implications are reviewed in the ecoEnergy report which will make recommendations on how to best improve your homeâs energy efficiency.
An EnWise EA will also conduct a consultative walk through your home and highlight ways to reduce your energy costs and increase home comfort. Some of the key indicators that will allow us to make energy efficiency recommendations come from the Blower Door Test and the walk through.
EnWise Building Science Offers licensed Home Energy Audits in the greater GTA
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