Preparing for an Energy Audit Assessment
Before J Ferg Energy Pros visits your home, make a list of any existing problems such as condensation and uncomfortable or drafty rooms. Have copies or a summary of your homes yearly energy bills. We use this information to establish what to look for during the energy audit. First, we examine the outside of the home to determine the size of the house and its features.
Below are types of assessments we will offer during a home energy audit.
The higher the R-value, the greater the insulating effectiveness. The R-value depends on the type of insulation, its thickness, and its density. We are mainly looking for the condition and type of levels in your insulation. Different insulation has different R-Values. Most people have inadequate insulation and do not even know it. Also, remember that air sealing and moisture control are important to home energy efficiency, health, and comfort.
To avoid damage to your roof you will need to keep your home ambiance in top condition. An assessment of the condition of your attic ventilation may be needed. Below are some steps to assess your attic.
- Look at your roof and eaves.
- Living in West Texas, we experience snow. You may discover ridges of ice buildup at the eaves. Which means your attic is not ventilated properly because warm air is getting trapped. Trapped warm air causes snow to melt and then it refreezes as it reaches the eave.
- Check your home roof during hot days. An extremely hot roof tells you that too much air is being trapped in your attic. Which will cause your shingles to be cooked.
- Warm air rises from the lower living spaces if not allowed access to the outside will condense on rafters in the attic. Grab a light and look at the attic during the winter. If you notice moisture on the rafters, then air is not being allowed to escape sufficiently.
Poorly fitted or sealed windows can be frustrating during the winter months. Letting in cold drafts that blur the lines between indoors and out. Unfortunately, this isn’t just an issue of comfort. Windows with air leaks show an energy efficiency problem. Not only does the cold air that seeps into your home through these leaks. It forces your heating system to work that much harder to maintain a stable and comfortable temperature.
Poorly fitted and sealed windows also make it that much easier for the warm air inside your home to get out. In fact, the Energy Information Administration estimates that as much as one third of the average home’s heat loss occurs through windows and doors.
Blower Door Assessment
A blower door is a powerful fan that mounts into the frame of an exterior door. The fan will then take air out of the house. Lowering the air pressure inside. The outside air pressure then flows in through all unsealed cracks and openings.
Blower doors consist of a frame and flexible panel which fit in a doorway. A variable-speed fan, a pressure gauge to measure the pressure differences inside and outside the home, and an airflow manometer and hoses for measuring airflow.
Air Infiltration Assessment
To pass this test, a residential product must not allow more than 0.3 cubic feet of air to pass through the entire manufactured unit per minute, per square foot. At an accredited test laboratory, a new product sample is subjected to constant air pressure to simulate 25 mph winds, which represents a time-averaged weather condition. Because air flow depends upon temperature and atmospheric pressure. These are also taken in account to determine total air infiltration.
Another process of our home energy audit, is checking what types of lights you have. We offer LEDs and many people still run incandescent bulbs. These bulbs cost too much to run, give off heat, and will not last long.
Infrared Scan Assessment
Infrared scan is either an interior or exterior survey. J Ferg Energy Pros will decide which method would give the best results under certain weather conditions. Interior scans are more common. Because warm air leaking from a building does not always move through walls in a straight line. Heat loss identified in one area of the outside wall may originate from another location on the inside of the wall. It’s typically harder to distinguish temperature differences on the outside surface of the building during windy weather. Because of unpredictable weather. Interior surveys are generally more accurate because they benefit from reduced air movement.
Infrared scanning allows us to check the effectiveness of insulation in a buildings construction. The resulting infrared scan helps us determine whether a building needs insulation and where in the building it should go. Because wet insulation conducts heat faster than dry insulation, infrared scans of roofs can often detect roof leaks.
For more information on how much you can save with your home energy audit, please visit Energy Gov.