Cross-laminated polyethylene for submembrane radon mitigation?
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Cross-laminated polyethylene for submembrane radon mitigation?
I need to install a plastic membrane over a dirt crawl space for radon mitigation. This will have a suction point to pull radon out from under the sealed space.
The book says to use "4 mil high-density cross-laminated white polyethylene". This stuff seems only to be available from specialty dealers and it seems to be fairly expensive, about $100 for a 10*100 foot roll.
Can I use something else that I might find at a local hardware or building supply store?
My crawl space is pretty ragged. There is a lot of debris and rock shards. I don't want to dig the space up any more than necessary. Can I throw something like a cheap blue tarp over the rough sections and then put the sealed barrier on top of that?
The book says to use "4 mil high-density cross-laminated white polyethylene". This stuff seems only to be available from specialty dealers and it seems to be fairly expensive, about $100 for a 10*100 foot roll.
Can I use something else that I might find at a local hardware or building supply store?
My crawl space is pretty ragged. There is a lot of debris and rock shards. I don't want to dig the space up any more than necessary. Can I throw something like a cheap blue tarp over the rough sections and then put the sealed barrier on top of that?