RMS-LB-2018

Introduction 2
Table of Contents 4
1 Scope 5
2 Applicability 5
3 Qualified Professionals 6
3.1 Trained Professionals 6
3.2 Contractors, Teams and Qualifications 6
3.3 Quality Assurance 6
4 General Practices 6
4.1 Existing Measurements 6
4.2 Building Specifications 7
4.3 Known Hazards 7
4.4 Communication 7
4.5 Access Notices 7
4.6 Safety Data Sheets 7
4.7 Proposals 8
4.8 Jurisdictional Authorities 8
5 Systems Design 8
5.1 Health and Safety 8
5.2 Long-term Considerations 8
5.3 Appropriate Systems 8
5.4 Other Building Systems 9
5.5 Adjoining Units 9
Permanent Systems 9
6 Building Investigations 10
6.1 Nondestructive Investigations 10
6.2 Diagnostic Investigations 14
6.2 Design Decisions 14
6.3 Decision Flowchart 15
7 ASD System Installation 17
7.1 ASD Suction Points 17
7.2 ASD Piping 19
7.3 ASD Pipe Sizing 21
7.4 ASD Exhaust 22
7.5 ASD Fan installation 25
8 Sealing 26
8.1 Background and Accessibility 26
8.2 Sealand Materials 26
8.3 Accessible Cracks 26
8.4 Other Openings 26
8.5 Sumps 27
8.6 Membranes Over Open Soil 27
8.7 Sub-membrane Depressurization 27
8.8 Drains 28
8.9 Sealed Isolation Assemblies 28
9 Required for All Systems 29
9.1 Long-term OM&M Plan 29
9.2 Fan Monitors 29
9.3 Electrical 29
9.4 Labeling Required 30
10 Non-ASD Methods 31
10.1 All Non-ASD Methods 31
10.2 Indoor Air Pressurization 32
10.3 Indoor Air Dilution 33
10.4 Soil Airspace Pressurization 33
10.5 Soil Gas Dilution 33
10.6 Sources of Air 34
10.7 Controls 35
10.8 HVAC Repairs or Modifications 35
10.9 Radon from Building Materials 35
10.10 Radon from Water 35
10.11 Air Cleaning 35
10.12 Other Methods 35
11 Post-mitigation 36
11.1 Funtional Inspection 36
11.2 Radon Retests 36
12 Documentation 37
12.1 Essential Information 37
12.2 When Owner/Occupied 37
12.3 Inadvertent Collateral Mitigation 37
12.4 When Not Owner/Occupied 38
Table 12.4 OM&M Plan 39
12.5 Review with Client 40
12.6 Retention of Records 40
13 Health and Safety 40
13.1 Installers 40
13.2 Workers and Occupants 41
Flue gas 41
Asbestos 41
Lead-based paint 42
14 Description of Terms 43
Exhibits 46
A-1: Client Notice—Intention to Enter the Building 46
A-2: Staff Notice—Intention to Enter the Building 47
A-3: Occupant Notice—Intention to Enter the Building 48
B: Occupant Notice—Sealant Warning 49
C: Temporary Systems 50
D: Referenced Publications 51
RMS-LB Consensus Body 52
RMS-LB Companion Guidance 53
CG A: Guidance for property owners 54
CG B: When considering non-ASD methods 55
CG C: Heating, Cooling and Ventilation Systems 56
CG D: Quality management 58
CG E: Normal Average Operating Conditions 60
CG F1: ASD Mainenance Log 64
CG F2: HVAC Maintanence Log 65
CG F3: HVAC Inspection Checklist 66
AG F4: HVAC Diagnostic - Repair Checklist 67

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