We have a client who wants to combine a conventional poured-in-place foundation with an Insulated Concrete Form foundation system. The client was planning on using his 10″ wide poured-in-place foundation wall to support brick and framed walls. The problem is that the ICF is not wide enough and there is no room to support the brick. The brick would have to sit out on the outside layer of insulated foam and there is no way the foam could support the load. Does anyone have any ideas on how to support the brick (i.e. steel angle)? He has his reasons for combining the two systems so it is highly unlikely that he will change his mind on the combination of the two. Thanks.
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Yes: I did Polysteel ICF's and veneered the wall w/ brick. Solution is to cut a window in side of ICF's about 4" high by 10 inches long at every Post diameter section. (Assuming the cross section is "Waffled like Polysteel) You get a foam section to glue below the windows & run it the length of the entire wall where you want the bricks.Needless to say, you support w/ bracing Run a piece of rebar the length of this section. Connect that rebar to the interior rebar w/ stirrups. The ledge will fillw/ concrete & form your shelf. Since it is nearly in pure shear, it holds quite nicely. I've done a crappy sketch below since I have no idea whatsoever how to do attachments.
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Arxx makes a version of their blocks with a brick ledge. You pick one course just at grade level and use brick ledge blocks for that course. Install rebar per manufacturer's instructions. I've used it and it works well.
To flash it, run that stretchy sticky rubber stuff on a roll down from the sill plate, around and down the brick ledge, and to the footing. Then overlap your housewrap above.
I recently completed a new home using ICF's. They were the ARXX brand and they have a block that is made for this application. I am assuming when you say 10 inch wall that you mean 10 inches total in width including the foam. The block has a brick ledge right on it. You just have to be careful with the right slump, I think we were running @ a 5. Hope this helps.
Several ICF manufacturers have a brickledge block. I know Logix does and Nudura and Integra Spec. Integra also leaves you the option of building a wall of one thickness to a certain point and then going on up with a thinner wall.
The reinforcing steel in the brickledge blocks is of critical importance.
Ron
Most ICF's offer a brick ledge options chack to see if yours does..
I know that it seems rediculas to set breick on foam but it works and it's strong enough! of course you need to use brick ties to hold the brick against the wall, but You aren't really setting the brick on foam. (although it sure seems that way)