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How long prior to the start of a test should a mitigation system be in operation?
Radon resistant new construction features include all but which of the following?
What would be the most effective mitigation technique for a house built over a crawlspace foundation?
Which of the following descriptions would be a proper installation of an ASD system?
Which of the following descriptions would be an improper installation of an ASD system?
A Sump pit can not be used as the primary suction point for mitigation systems.
In a crawlspace application, the high density plastic used to cover the gravel or dirt floor must be sealed to the foundation walls to create a pressure field for the system to work properly.
Vent discharge points are to be directly vertically with no obstruction except for rain caps.