Radon Discharge

[Buck Hartley, CMI]

Should the radon discharge pipe extend above the roof line? Should all systems have man-o-meter gauge? What is this pipe I found in the attic, it is at least 75 ft away from the system?

Thanks, for your input.

[Michael Larson]

Originally Posted by bhartley

Should the radon discharge pipe extend above the roof line? Should all systems have man-o-meter gauge? What is this pipe I found in the attic, it is at least 75 ft away from the system?

Thanks, for your input.

Yes it needs to discharge above the roof line.

Yes it needs a visible indicating device for the home owner to observe that the blower is working and moving air.

The pipe may serve as a chase for cable and satellite dish wiring.
Where you able to find the other end?

[David P. OKeefe]

The pipe in the attic that says radon mitigation, What's that for?

[Michael Larson]

Originally Posted by dokeefe

The pipe in the attic that says radon mitigation, What's that for?

Then it appears the builder provided a pipe between the attic and the lowest level that someone chose not to use.

[Nick Gromicko]

http://www.nachi.org/comsop.htm#18

[David A. Andersen]

It is a pre-piped connection in an attic (it appears) to hook up the fan to a pre-installed radon piping system.

They did not use it for this application. They put it outdoors instead.

EPA says 2" over the eave. Where is the nearest openable window?

Yes a manometer is required to determine if the fan is working.