Replies

1. 
   Rob_Dykeman | Jun 20, 1999 06:38am | #1

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   The need is not to coat the wall but rather drain the wall. There are a number of companies or products you can do this with. Once the water control is in place then coating the wall may be of some help.
   Rob

2. 
   Guest_ | Jun 20, 1999 06:38am | #2

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   One of my clients has a basement room which has been suffering from mold and mildew for some time (nothing new here).
   Today, we tore out the baseboards and drywall to find damp and mildewed fibreglas insulation, as well as studs totally rotted at the bottom; plates shot as well.
   Now, it's obvious that moisture has been penetrating the block walls behind this framed wall for some time, and I know how to handle that problem.
   The problem I'm not sure about has to do with prepping the block wall for Drylock or Thoroseal (I can't do anything about the exterior of the block wall due to existing patio and stone-walled planting beds).
   You see, since whoever the "contractor" was who built this addition apparently didn't dampproof the exterior of the foundation prior to backfill, they smeared dampproofing on the INSIDE of the block before they built the stud wall, then installed fibreglas batts which stuck very nicely to the tar.
   We were able to remove all of the fibreglas with wire brushes and a stiff broom, but I'm pretty sure I'm gonna have to remove the tar before I can proceed with any kind of waterproofing paint product.
   Thought about using a high-pressure washer to try and remove the tar.
   What say you ? Anybody been down a similar road before ?