Dear Readers,

I've a block foundation wall with full basement. After heavy rains,
water seeps in from one part of the wall and has bubbled the paint
about 6" above the floor and seeped up along the edge between the wall
& floor in the same area.

I want to excavate the exterior, install a sloped perf pipe drain
along the footing, apply a dampproofing coating to the exterior wall,
and apply either tar paper or plastic sheeting over the
dampproofing.

Is tar paper better than plastic to waterproof the wall? If plastic,
what thickness? The thickest plastic I can find at HomeDepot is 6mil,
but I'm concerned that it might tear.

All suggestions appreciated!

-Anthony M. Falcone