Radon 202: Inspecting Mitigation Systems
I. General Overview
5 Topics
Definition of Mitigation System
Goals of Radon Mitigation Systems
Additional Benefits of Mitigation Systems
Mitigation System Compliance
Post Mitigation Testing Requirements
II. Active Mitigation Systems
10 Topics
Types of Active Mitigation Systems
Sub-Membrane Depressurization (SMD)
Understanding Systems With Multiple Suction Points
Vent Pipe Requirements
Variances
Entry Routes and Sealing Requirement for Active Systems
Fan Location Criteria
Exterior Fan Installation
Electrical Requirements
Required Labeling of Active System Pipes
III. Passive System Installation
9 Topics
The Radon Resistant Construction Act
Passive Pipe Installation
Vents In Crawlspaces
Soil Gas Retarders
Proactive New Construction Design Requirements
Required Labeling of Passive Pipes
Combination Foundations
Joints in Air Ducts and Plenums
Activation of Passive Systems
Radon 202: Inspecting Mitigation Systems Final Exam
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Fan Location Criteria
Radon 202: Inspecting Mitigation Systems
II. Active Mitigation Systems
Fan Location Criteria
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Acceptable locations
Unoccupied attic
Outside of home
Garage (unless there is livable space above)
Unacceptable locations
In the conditioned space of home
In an occupied attic
Under any conditioned spaces of the home
Crawl space beneath home
Garage with living space above
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