MALB_2014 with 1-21 Revisions

Normative Appendix A ANSI/AARST MALB-2014 with 1/21 Revisions A— Reporting Building Operating Conditions 2 A-1.0 Reporting Operating Condition Comparisons Data from the applicable climate table(s) in this Appendix A , Tables A-1 through A-8 , shall be provided for reporting the normal occupied building operating condition(s) for buildings and unique sectors within a building. Exception: Calculations based on Section CG-5 of the Companion Guidance are permitted. A- 1.1 Data and format Table A-1 specifies data and information that shall be reported. Information that compares normal occupied building operating conditions to the operating conditions that occurred during a test shall be portrayed together for easy comparison, such as in Table A . Table A Comparison of building operating conditions * Required data Outdoor Temperatures Prevailing Annually Prevailing During the Test Average Avg. annual outdoor temperature * Average temperature during test * Operating Condition Heating Conditions percentage of year * percentage during test * Cooling Conditions percentage of year * percentage during test * Mixed Conditions percentage of year * percentage during test * Prevailing Operating Condition Average prevailing operating condition * prevailing condition during test * Condition less likely to inhibit characterization of a radon hazard conditions for clear characterization * conditions during test * A-2.0 Calculating test conditions Note— Table A-0 provides a quick reference for expected building operating conditions relative to average outdoor temperatures during a test that complies with requirements of this Section A 2 . A-2.1 Operating Conditions Outdoor temperature conditions that dictate the building operation condition at any point in time shall be used to report the percentage of time that each building operation condition occurs during a test, or time period of interest, as required in provisions a), b) and c) of this Section A 2.1 . a) Heating conditions shall be expressed based on durations when outdoor temperatures are less than 65°F (18° C). b) Cooling conditions shall be expressed based on durations when outdoor temperatures exceed 83° F (28° C). c) Mixed conditions, where neither heating nor cooling conditions prevail, shall be expressed based on durations when outdoor temperatures are in the range of 65°F (18° C) to 83° F (28° C). Outdoor air ventilation systems with fixed minimum settings or conditions as they will be at all times of the year shall be regarded as an “as is” condition, much the same as small gaps to outside air around windows and doors that allow infiltration of outside air.