MALB_2014 with 1-21 Revisions

Conducting Measurements of Radon and Radon ANSI/AARST MALB-2014 with 1/21 Revisions Decay Products in Schools and Large Buildings 13 Table 4-B ADDITIONAL REQUIREMENTS FOR NEW CONSTRUCTION, RENOVATIONS AND REPAIRS All openings to the exterior (due to incomplete construction, structural defect or disrepair) These openings to the exterior shall be closed or sealed at least 12 hours prior to initiating the test Heating/cooling systems active and set to a normal occupiable temperature These items shall be completed or installed at least 12 hours prior to initiating the test All windows and exterior doors installed with hardware and seals All insulation and exterior siding All wall and ceiling coverings to be completed including interior drywall or paneling but does not include decorative finishing of walls, floors or ceilings All fireplaces and fireplace dampers installed Table 4-C ADDITIONAL CLARIFICATION ON CLOSED BUILDING PROTOCOL REQUIREMENTS FOR SPECIFIC COMPONENTS Windows and Doors on all levels of the building including areas not being tested Broken windows or doors Seal closed Interior partition or stairway doors No special requirements Exterior doors into non-residential rooms Keep closed (except for momentary entry and exit of individuals who customarily enter the building) Garage doors and doors leading into a garage Keep closed (except for momentary entry and exit). Small Appliances Ceiling fans and portable fans Do not blow fans directly towards testing devices Window fans Remove or seal shut and do not operate Humidifiers and dehumidifiers Operate normally Crawl Spaces Passive crawl space vents Set vents to the condition that prevails during the greatest amount of time each year Crawl space humidity control systems Operate normally Mechanical Systems Passive vents for combustion air makeup Leave open Combustion appliance fans Operate normally Fans installed in attics to ventilate only attic air Window air conditioners Operate in recirculation mode only Evaporative cooling systems Do not operate and do not cover