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How to support cracked, bowed basement walls | Diy block foundation wall bracing


hi, Vince here, in this
quick video I’m gonna show you how to secure and prevent an existing block
wall in an old home from caving in or moving inward any further first off what
you see here is a horizontal split in the block and that goes about
bellybutton high all the way down we’re good in this area where there’s a
implied Bow but as you can see crossed here some serious splitting going on and
simply put you know it’s a about a 90 year old house
it’s got backfill outside probably up though about here this is just hollow
block so it’s inevitable it’s a matter of time before it comes in if you take a
look at it this way you might actually be able to see how how it’s bowed inward
take another look over at this one real quick and you can probably see that from
here hey have an inward bow if you look down the wall you might see that as well
so an engineer came in here homeowner sold the home home inspection failed for
the structural issue and an engineer designed a way to fix this and here’s
his method of fixing okay we have quarter inch by quarter inch thick
hollow four inch wide by four inch wide so it’s a 4 by 4 by quarter inch thick
steel solid column and he called for a plate to be welded on the bottom six
inches deep which runs this way eight inches across with two half-inch bolts
to half inch bolts here and the way this works out we wear a hole in the concrete
pad five-eighths we shoot an epoxy in there and we slam the bolt into it and
let it sit and when we do that we let it sit loosely because we don’t want to
jeopardize the epoxy at all here’s the one next to it okay and way this works
out when you come up to the top Horsham you’re gonna see some boxing
going on let’s turn the light on if we can there we go
and you’ll see first off there’s a plate that plate is up under here now this has
to be screwed in still and all that does is that secures the top flange that’s
not enough to hold back the wall if you’ll see there’s a gap and that
section of the wall but it touches up here and that post is dead level you can
see the same thing over here you’ll see a gap below touching up top so that
means this whole walls been coming inward so and what the engineer had
called for is a double plate turned sideways which is what you see here but
up against the post okay and that’s going to prevent that from pushing back
any further that’ll get that rigidity so this particular column is done with the
exception of the bolt being driven home okay now there’s another way that you
can do it as well you can come down and you can strap double pleading to the
bottom of the joist come across it you could do it that way there’s other ways
to do it I’ve seen guys put pleading here plating here and then across plate
this way that can be done that way as well this is in this particular instance
that’s how the engineering called for so this is the finished product and what
this will do and trust me that’s 100 plus plus plant pounds that’s gonna
easily keep that wall from pushing back any further and that’s the idea once
everything is done just simply take your 3/4 wrench tighten down on the bolts
they’re epoxy din if you look over here you can actually see the epoxy that is
spewed out of there and the epoxy itself runs about $22 for one tube you’ll get
about two and a half Post worth done okay four holes per post okay and this
particular job we have eight we have astray over there we have three on this
wall we have two on this wall and then two behind me on this wall
okay so again this is something that has to be done with a municipal permit the
engineer does want it approved by the township as a secured preparer and with
that in mind the township will issue the full Co so the home buyer can complete
his purchase without having to worry about a future catastrophe
hope you enjoyed watching please subscribe to my channel there’s all
types of videos on there Hal twos home repair engineer repairs and build outs
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8 thoughts on “How to support cracked, bowed basement walls | Diy block foundation wall bracing

  1. Why would anyone buy a house with an existing problem like this? How is water on the outside being managed which most likely is causing the issue?

  2. How are walls handled which are parallel to the floor joist. Adding blocking in the joist to secure the top from moving inward is not the same when load is placed on the side of a joist.

  3. Would you shim the gaps between the steel and block where it isnt touching due to theblowing? Or you just left it as is with the steel only touching the bowed area?

  4. Just a quick question…
    how were you able to attach the bottom of the post plate to just the basement floor w/ just 4 bolts and epoxy. Typically the basement floor is 2-3” thick in most cases in older homes, not nearly thick enough. Why didn’t the engineer call for a footings under the post ? In this video, the floor is already cracking where the bottom of the post is attached. Thanks for you response.

  5. Sir I have a question for you, if you don't mind. If its a foundation wall with dirt on the other side, will drilling holes in the wall cause more damage? All I want to do is frame out one side of my garage wall.

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