RMS-MF 2018 with 12/20 Addenda

Post-mitigation 39 ANSI/AARST RMS-MF 2018 (with 1220 addenda) Radon Mitigation Standards for Multifamily Buildings 9.2.5 Additional tests As applicable when exhausts are located below the roof or when non- ASD mitigation methods include mechanically induced pressurization or dilution, testing specific locations no later than the initial retests after mitigation is required in accordance with: a) Section 6.4.11 c ( ASD exhaust— Below the roof ), and b) Section 12.3.4 (Unintentional radon transport from non- ASD pressurization of dilution methods).