Radon Pipe Specs
Hey All,
I found similar questions but couldn’t find the exact info… I’m about to start prepping the basement slab with plumbing, radon pipes, insulation, VB etc. Radon system will be passive with the opportunity to add an inline-fan in the future if needed.
It looks like the two real options for perforated pipes available are the SDR 35 and the Triple Wall ADS, linked below:
ADS: https://www.lowes.com/pd/ADS-4-in-x-10-ft-Corrugated-Perforated-Pipe/3221925?
Curious if either of these would work for subslab radon, as I’ve read some concerns about breakage. If they both work, does anyone have a preference?
Also confirming that 4″ is what we want to use here, correct?
Thanks all–
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Those plus schedule 40 are the options I list on my plans. All seem to work fine so I leave it to the builder to decide; they all have their own preferences. Yes 4" is best, especially for passive mitigation, but 3" can be used with a fan if necessary. The riser should extend through the roof near the ridge and not near windows or skylights.
Thanks Michael. Glad to hear these options work. I think sch 40 would be preferable but I've had a harder time finding the perforated version recently. And yes, definitely planning to extend the riser through the roof near the ridge.
As far as number of branches, how many do you typically spec? It's a 32x44 basement footprint. Thinking that 3x 20' branches that make an "HH" layout with the riser tee'd off in the center would work. Again, finding it hard to find exact info on these specifications, but it seems like the number or branches may not be as important as long as it's in the stone bed.