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Old 03-30-2011, 01:33 PM   #1
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water in garage?


My garage is about 50+ years old, it is detached from the house. The inside has no insulation or drywall, the celing is open to the rafters and ceiling joists as well. The problem I have is when it rains hard for a long time, water actually comes up though the concrete, not puddling, but the whole slab becomes moist to the touch. And I do have adequate drainage, the land slopes away from the garage on all 4 sides and the gutters are piped out to the street.

Now I have thought about doing some kind of sealer on the concrete so this does not happen so I am not sure if this is a good fix or not.

Also becasue of this I have a serious problem with condensation, I use the garage as a work shop and I am noticing my tools are becoming rusty very fast, I am sure this is because the moisture can not escape once it comes though the slab. Now my roof does not have any venting at all, would adding a few of those cheap plastic roof vents help this problem? If so how many do I add? The garage is 10'x24' and with a 8' plate height and again the rafters are open there is no drywall on the ceiling or walls.

I dont want to put to much money into this garage because in a couple years I am planning on tearing it down and rebuilding a larger garage, but I would like to try to help the problems I am having now until I get to that point.

Thanks!

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Old 03-31-2011, 07:18 AM   #2
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water in garage?


Sounds like you have done everything to get surface water away from the footers/slab. I will have to guess you have a high water table, and there is no solution for that. It is rare to see a sump pump in a garage, but that might be what is needed.

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Old 03-31-2011, 07:44 AM   #3
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water in garage?


if its an older garage, there's probably no vapor barrier under it,,, there are siloxane sealers that will work - even at the apron stores
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Old 03-31-2011, 04:33 PM   #4
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water in garage?


I agree with the no vapor barrier as said above. If I put down a sealer would that cause problem, might sound stupid but it seems like it could cause problems if the pressure really builds up.
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