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johnfrederick 03-28-2013 10:31 PM

Garage Wall Moisture
One of the walls of my garage has moisture seeping through. It is a cinder block wall. The exterior of this wall is a contained planting area so there needs to be some sort of drainage (a french drain perhaps) installed to get the moisture out of the area. My question right now is, how big of a deal is it to have moisture on this wall during wet periods of the year? Will it eventually cause the wall to deteriorate? Should this be addressed immediately or can it stay as-is for awhile?

Thanks for your help.

joecaption 03-28-2013 10:37 PM

Got a picture?
That wall should have been waterproofed on the outside.
Over time yes it will weaken the block and morter and cause mold to formo the inside.

stadry 03-29-2013 07:24 AM

dig out the planting area to below the garage floor + 1' - more if its a block wall,,, trowel on fiber-reinforced roofing cement & protect that w/pond liner,,, you may also need to install a catch drain leading to daylight,,, replant taking care to have positive drainage :thumbsup: just like joe sez :laughing:

jagans 03-29-2013 10:58 AM

Yes, you are going to want to waterproof the outside of that wall, I would prime it and put up a peel and stick SBS material. Were I you, I would add a drainage pipe at the bottom, geotextile drainage board like Miradrain 6000 against the wall over the waterproofing fabric side out, clean stone around the perforated pipe, and poly over the stone to prevent blocking.

Cinder block will fall apart, as Joe said.

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