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Typical Home Energy Audit
An energy audit of a home involves recording various characteristics of the building envelope including:
- Walls,
- Ceilings,
- Floors,
- Doors,
- Windows, and skylights.
For each of these components the area and resistance to heat flow (R-value) is measured or estimated.
The goal of this exercise is to quantify the building's overall thermal performance.
The audit may also assess the efficiency, physical condition, and programming of mechanical systems such as the heating, ventilation, air conditioning equipment, and thermostat.
The audit will try to define the impact of any suggested improvements and their pay back period.
The accuracy of energy estimates are greatly improved when the homeowner's billing history is available showing the quantities of electricity, natural gas, fuel oil, or other energy sources consumed over a one or two-year period.
Advanced Home Energy Audit
An advanced audit may include the effects on energy use due to user behavior, climate, and age of the home.
We will interview of the homeowners to understand their patterns of use over time.
The energy billing history from the local utility company can be calibrated using heating degree day and cooling degree day data obtained from recent, local weather data in combination with the thermal energy model of the building.
Computer-based thermal modeling can take into account many variables affecting energy use.
The leakage rate or infiltration of air through the building envelope is tested to determine quality of home construction, window construction, door seals such as weatherstripping.
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Or call 623 444 2626
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