sub-slab depressurization York 2
https://basementradonpreventionfacts.clarionvale.com/posts/why-basement-radon-prevention-matters-for-york-county-homeowners
Sub-slab depressurization in York involves installing a fan and piping system beneath a concrete foundation to pull soil gases, like radon, out from under the house before they can seep inside. This is a common mitigation technique here because parts of York have elevated radon levels in the bedrock and soil. The fan creates negative pressure under the slab, venting the gases safely above the roofline. It's a neat engineering fix that works even in older homes with cracked slabs or unsealed sum…