Apr 1, 2014 · It should be “safe” to terminate the radon pipe 15 or 20 feet above the ground (which exceeds the 10 foot minimum height standard). It is also well over 10 feet horizontal distance from any windows or vents to the sides or above …

Dec 13, 2017 · The vent pipe is directly above the garage and outdoor courtyard where we spend a lot of time in the summer. The roof line is about 3.5 m (at the gutter) above the courtyard, and the pipe vent exit is about 1.5 m above the gutter. So the exit point is …

Sep 3, 2024 · When radon gas is discharged via a radon mitigation system above the roof, the radon concentration falls off dramatically with distance from the point of discharge. In fact, the radon gas concentration approaches background levels at 3-4 feet from the discharge point.

Apr 18, 2013 · I just purchased a home with a recently installed radon mitigation system. The system vents through the basement and then upwards in a PVC pipe on the side of the house. The problem is that the vent terminates about 2/3rds of the way up, whereas my understanding is that according to EPA code it should extend at least a couple feet above the ...

Oct 8, 2023 · In theory when you are using your drains to flush, shower, do laundry you could be drawing radon back down into the plumbing stack and expose yourself to an interior breach. Is it safe or possible for the existing plumbing vent pipe to …

Install a passive radon ventilation system consisting of a vertical vent pipe extending up from a sub-slab collection pipe or mat through the conditioned space of the home and through the roof that uses the natural stack effect to pull soil gases up and out of the house.

Sep 3, 2024 · A Vent Pipe: Run a 3-inch or 4-inch solid PVC Schedule 40 pipe, like the ones commonly used for plumbing, vertically from the gravel layer (stubbed up when the slab is poured) through the house’s conditioned space and roof to safely vent radon and other soil gases outside above the house.

Feb 1, 2006 · Attic and external piping runs in areas subject to subfreezing conditions should be protected to avoid the risk of vent pipe freeze-up. 14.2.3 Radon vent pipes shall be fastened to the structure of the building with hangers, strapping, or other supports that will adequately secure the vent material.

Where should the radon vent pipe be placed? The vent pipe should exit the roof or the side of the building at least 12 inches above the roofline to prevent radon from re-entering through windows or vents.

Vents ending under eves can have a similar effect as pipes placed down low. They also can produce moisture and ice on soffits and the side of the house. When planning your radon exhaust location be sure that windows on a 2nd or 3rd story that over look the vent are at least 10' feet away. Don't forget a cap for the pipe.