The Denver Energy Audit Process: When the AirTight Inspector shows up at your home, here is an idea of what will take place.
1. First the inspector will sit down with you the homeowner and discuss your home. They will want to get to know your home and how you use it. Do you have rooms that are always cold? or hot in the summer? If you have the previous 12 months of utility bills handy, be sure to let your auditor know so they can make a note of your usage.
2. The inspector will then walk around the home with you so you can point out specific concerns you may have. Is there an area that is particularly drafty? Where is the access to the crawl space or attic? What improvements have you done to the home since you’ve owned it? Where are the combustible appliances located? What type of heat does the home use?
3. Next the inspector will walk around the exterior of your home and look at the overall condition of the home including the walls, roof, siding, and gutters taking into account all the penetrations into the building envelope.
4. Back inside the home, the inspector will head to where the Combustible appliances are located for some initial diagnostics. The appliance model numbers will be recorded, the lines tested for gas leaks and the overall room tested for Carbon Monoxide. The model numbers and year of the appliances will help the auditor determine the efficiency of your units.
5.Next up is the blower door test. Placing the blower door in an exterior door, the inspector will begin to run the blower door fan and digital meter. With the blower door fan running at -50 CFM (cubic feet per minute) the home will be be depressurized with the air being pushed outside the home simulating a 20 mile per hour wind. The inspector will then walk throughout your home and investigate the home for leakage. The blower door dramatically accentuates the movement of air infiltrating your home allowing the inspector to pinpoint precise leakage areas. The digital readout of the blower door will provide the auditor with a numerical figure of the ACH or air changes per hour which will then determine how leaky or tight your home is.
Important: If you have a wood fireplace that is operational, be sure to extinguish all ashes 24-48 hours prior to your energy audit and remove any ashes from the fireplace. The blower door fan can ignite the ashes and/or blow them throughout the home.
6. Using an infrared camera, the inspector will then scan the walls of your home and look for further signs of air penetrating the envelope as well as any indications of misaligned insulation, missing insulation and signs of moisture. Together with the blower door, the infrared camera allows your inspector to see much more detail in the envelope. Knee walls, cathedral ceilings, skylights, soffits — are all areas that an inspector will want to take a close look at with the infrared camera for signs of poor insulation.
7. With all the data gathered, and with information in hand, the auditor will put together a comprehensive report detailing the energy efficiency of your home which will be available to you within three business days. The report will feature recommendations for improvements with the cost estimate associated with the improvement as well as the Return on your Investment (ROI) you can expect for that improvement.
AirTight Energy serves the entire Denver Metro area- Wheat Ridge, Westminster, Centennial, Lakewood, Colorado and Denver. Call us today to schedule your Denver energy audit and start saving $$ and improving the comfort of your home! 303-638-3172