Basement Cold Joint Repair Question - Building & Construction - DIY Chatroom Home Improvement Forum

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Old 03-12-2011, 05:52 PM   #1
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basement cold joint repair question

Last spring/summer my brother in-law help me install a sump pump which helped with most of our basement leaking issues. I noticed that we still have an issue with water seeping through at the cold joint during the heaviest rain storms. I got some Drylok fast plug to seal this joint and when looking at the directions, they show using it on a non-painted wall/floor. When I moved in, my basement's walls were thickly painted (textured) and the floor also has a nice coat. So my question is, should I chisel off the paint before applying Drylok? Does it really matter? Thanks.


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Old 03-12-2011, 09:18 PM   #2
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Foundation repair

It sounds as though your problem may be within your drainage tile. May i suggest scoping the tile to insure no roots or debris have inhibited flow. If the flow is fine epoxy seal cracks and at the extreme dig the fill in the suspect area and tar/membrane the foundation.


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Old 03-12-2011, 10:05 PM   #3
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I already had someone tar/membrane the cracks from the inside and outside. I'm a newby... how do I go about "scoping" the tile?
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Old 03-13-2011, 07:15 AM   #4
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plumbers have tv cameras,,, a sump along rarely resolves leaking wtr issues,,, to properly seal a cold joint, inject w/hydrophyllic polyurethane,,, the wtr will stop leaking in that spot however it will find another path of lease resistance at some future time.

' drylock ' materials do have their place however its usually on the apron/vest 's shelves,,, pro's RARELY use them,,, in face, if h/o's didn't buy them, they wouldn't be avail,,, even IF they did work, the wtr still penetrates causing damage you can't see.

then again, out of sight often = out of mind
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