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Old 05-08-2016, 07:45 PM
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MotorDoctor MotorDoctor is offline
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Default concrete block wall garage

I was cleaning/packing the garage today and I noticed a nice crack in the block wall holding up the roof on the garage. Doesn't run all the way to the floor (yet) but it's about 2/3rds of the way. It's stucco on the exterior and you can see the neighbors yard through it. Any suggestions? I was thinking of bridging the gap with some metal and anchoring it to the block wall with some Tapcon bolts. Plus filling it in with some sort of magic goo.
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Old 05-08-2016, 08:06 PM
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Quote:
Originally Posted by MotorDoctor View Post
I was cleaning/packing the garage today and I noticed a nice crack in the block wall holding up the roof on the garage. Doesn't run all the way to the floor (yet) but it's about 2/3rds of the way. It's stucco on the exterior and you can see the neighbors yard through it. Any suggestions? I was thinking of bridging the gap with some metal and anchoring it to the block wall with some Tapcon bolts. Plus filling it in with some sort of magic goo.
If you can see the neighbors yard, he can see into your garage too.... Watch out!
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Old 05-08-2016, 08:27 PM
kbs2244 kbs2244 is offline
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Zig zag cracks, following the mortar lines are common and nothing to worry about.
But enough stress to split a block is another thing.

How old is the wall?
Do you have a matching crack in the floor?
Has anything been done lately to change the drainage of the floor?

Before you patch the symptom you should fix the reason.
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Old 05-08-2016, 08:29 PM
theweldor theweldor is offline
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I would think that means the footer has settled a bit. Something had to move to cause it to crack. They make an epoxy you can fill that with that is stronger than the concrete block.
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Old 05-09-2016, 12:45 AM
Samcord Samcord is offline
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Unless you are sure that the movement has stopped, I would seal it with something flexible. It's kind of a choice between the one crack getting bigger, or multiple smaller cracks.
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Old 05-09-2016, 10:44 AM
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First, find out why it is wall is moving. You need to stop the movement for any repair to last.
Second, fill the crack with a sealer that can flex or it will just crack again.
Third, the strap idea is not good, as if the wall continues to move the fasteners can break under the stress.
Once you are sure the wall has stop moving have the stucco repair done.
Check the outside of the wall for deteriorating stucco that could be letting water in also.
Repairing the crack without fixing the cause of it, is not a good idea.
Dan.
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Old 05-09-2016, 11:37 AM
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There was a product called "Block Bond". The demo they did was to build a block wall without mortar between the blocks. Block Bond was just plastered on the outside. They then proceeded to try to demolish that wall and a standard built wall with a swinging weight. The Block bond wall stood up to more abuse. This was 25 years ago, so they probably have better products now. It was cheap enough then so I imagine it is still cost effective now to give it a try.
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Old 05-09-2016, 12:21 PM
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midmosandblasting midmosandblasting is offline
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I had trouble getting mix right on block bond. If you try it go short on water then keep adding to get a good mix.It is still available from quick but very few stockers due to shelf life. .Basically cement with fiberglass strands. Think concrete with fiber.
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Old 05-09-2016, 12:25 PM
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Quote:
There was a product called "Block Bond"
This the stuff you're talking about?
http://www.sakrete.com/products/deta...Bonding-Cement

No cracks in the floor, not sure why it has the crack, or even how long it's been there. I do know the driveway leading up to the garage has been moving, mainly when it freezes. I'm assuming that water is getting under it and pushing it up. And the side of the driveway that moves the most is also the same side as the wall with the crack in it. I do have an attic in the garage that sits on the block wall also. There is a lot of stuff up there though. Need to do a little more investigating. I just don't want to be wearing the garage for a hat while I'm in there.
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Old 05-09-2016, 06:48 PM
Samcord Samcord is offline
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Are you sure the floor extends under the wall. The wall footing could be a separate pour.
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