RRNC-2.0

Introduction 2
Acknowledgements 3
Introduction: Informational background 4
Table of Contents 6
101 General 8
Purpose 8
Scope 8
102 Limitations 8
201 Definitions 9
301 Mitigation System 12
302 Rough-in installation 13
401 Soil Gas Collection Plenums 13
402 Sub-Membrane 14
403 Subslab 16
404 Sealing 19
501 System piping 20
601 System termination 22
701 Active Soil Depressurization (ASD) system fan 22
801 Test kit 23
901 ASD finish 23
1001 System monitors & Occupant information 25
1101 Radon testing 26
1201 Radon potential zones 26
Zone Map 27
Table: Zone 1-2 Counties 28
Exhibit 1: Understanding radon systems 36
Appendices 38
A: Inspection checklist 38
B: Understanding ASD 40
C: Radon references 42
D: ASTM references 44

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