Ok,this thread I will update as I go on,also,will add pics.I live in upstate South Carolina in a house built in 1954.I purchased in 1999.Put a new heat pump in in 2003,all new duct work(insulated). I notice a couple years ago,with the outside vents open in the summer the ducts were wet(real wet).The down spouts were not piped off away from the house they are now.So I`ve replaced some ducts and have been keeping the vents closed no more wet ducts.So I`ve been reading on here and anywhere else I can find,about sealing up my dirt crawl space(encapsulate).I`ve pulled down all the nasty fiberglass insulation between floor joists,The dirt is not flat like all the nice pics on here.It slopes up from the one end,from about 6 ft to about 3 foot over 40 ft.Its also hard packed red clay dirt here in SC.not even.I was thinking about putting some geo-textile down and spreading some pea-sized gravel over it some places inches deep some deeper,putting in some type of pvc piping for gas-off and Radon who knows may even take some of the moistness from under vapor barrier.Does this sound OK?When I put down the barrier do I go all the way up the brick walls to about three inches from the top? does the foam board insulation go on the wall before or after the Barrier .I`ll write more later.THANKS TO ALL THAT HELP.