Chicago, IL, US
journeyman carpenter since 1980; licensed home inspector for the last 11 years.
I use 20% or 30% strength vinegar (grocery store vinegar is 5% strength) as a less toxic weed killer in my yard. I wonder if the stronger vinegar solution would eradicate moss/lichens as well.
Radon Resistant New Construction homes have been the law in Illinois since 2013 but we still find many builders are unaware of it or choose to ignore it. Thanks for the good synopsis.
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