Rome | Cartersville | Dalton | Cedartown | Adairsville   John Anderson Service Co 519 Pine St, Calhoun, GA 30701                                (706) 629-0749
Blower        Door              Testing A Home Energy Professionals (HEP) Certifications Energy Auditor can perform a blower door test during an audit of your home. (Photo by Dennis Schroeder/NREL) You may already know where some air leakage occurs in your home, such as an under- the-door draft, but you'll need to find the less obvious gaps to properly air seal your home. For a thorough and accurate measurement of air leakage in your home, hire a qualified technician to conduct an energy audit, particularly a blower door test. A blower door test, which depressurizes a home, can reveal the location of many leaks. A complete energy assessment will also help determine areas in your home that need more insulation. Visual Inspection On the outside of your house, the contractor will inspect all areas where two different building materials meet, including: All exterior corners Outdoor water faucets Where siding and chimneys meet Areas where the foundation and the bottom of exterior brick or siding meet. Inside your home, inspect around the following areas for any cracks and gaps that could cause air leaks: Electrical outlets Switch plates Door and window frames Electrical and gas service entrances Baseboards Weather stripping around doors Fireplace dampers Attic hatches Wall- or window-mounted air conditioners. Cable TV and phone lines Where dryer vents pass through walls Vents and fans. Also they will look for gaps around pipes and wires, foundation seals, and mail slots. Check to see if the caulking and weather stripping are applied properly, leaving no gaps or cracks, and are in good condition. And they will check the exterior caulking around doors and windows, and see whether exterior storm doors and primary doors seal tightly. The contractor will Inspect windows and doors for air leaks. Contractor will see if he can rattle them, since movement means possible air leaks. If he can see daylight around a door or window frame, then the door or window leaks. They can usually seal these leaks by caulking or weatherstripping them. Check the storm windows to see if they fit and are not broken. You may also wish to consider replacing your old windows and doors with newer, high-performance ones. If new factory-made doors or windows are too costly, you can install low-cost plastic sheets over the windows.
The weatherization team at John Anderson Service will use Diagnostic Tools to determine all of your air leakage. Here are some of the tools they will use.... Blower Door A blower door is a variable speed fan, mounted in a doorframe, used to pressurize and depressurize a house to measure air leakage. Duct Blower A duct blower is a variable speed fan that is attached to a duct system to measure duct air leakage. Manometer An instrument that measures the pressure differences between two locations. Flow Hood A Flow Hood is a device used to measure the amount of air flowing through a register. Infrared Camera An infrared camera (video or still) makes an image that shows surface heat variations that can be used to help detect heat losses and air leakage in buildings.