Hello ,I was wondering as to the life of regular black construction plastic,when burried . I am concidering building a pit house . I want it to be dry but would like to build it on the cheap .pond liner is expensive so is house wrap . thanks greggd
"The Low-Cost Underground House Workshop by Mike Oehler" is a video that shows how to build underground and use poly sheets to make it water proof. It's a great video that should help you waterproof your dwelling - I bet it will give you a bunch of good ideas.
Mike Oehler also authors a book called "The $50 and up underground house" :