RADON TEST REQUIREMENTS

CLOSED BUILDING CONDITIONS

WINDOWS & DOORS

• All windows in the home, on all levels, must be kept closed.
• All exterior doors must be kept closed except for normal entry and exit (60 second or less).

TEMPERATURE

• If the home is occupied, the HVAC system should be used to keep the home at a comfortable temperature for the residents. The fan status must be in the AUTO mode.
• If the home is vacant, or if the residents are out of town, the HVAC system must be set to a temperature between 67-77 F with the fan in the AUTO mode.
• If present and manually controlled, the whole house fan should be off.
• If the fireplace has a damper that is closable, the fireplace cannot be used and the damper must beClosed, if functional.
• Clothes dryers, range hoods, and bathroom exhaust fans can be used in moderation.
• Ceiling fans, portable dehumidifiers, and air cleaners are not to be used within 20 feet of a monitor.
• If the home has a radon mitigation system, it must be functioning.
• Accessible windows and exterior doors on the lowest level of the home may have been sealed withred anti-tampering tape that must remain intact for a valid test. Additional costs will be incurred toreseal windows or doors and reset the test if any tapes are disturbed.