radon systems for stone foundations 4
https://veloriftlabs.com/s/myUNbkztaEBE4EeY77RE3
Radon systems for stone foundations are tricky because the gaps aren't uniform like poured concrete. You need a flexible membrane sealed right onto the irregular surface, plus a sub-slab depressurization pipe that draws gas from below before it seeps up through the cracks. It's not a DIY job—pros use specialized foam and airtight boots around floor drains. Once done, continuous monitoring is smart because older stone basements shift over time.