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Insulating Concrete Forms (ICFs)
> Subject: Level Form Tops
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Barret Roosa
Registered Users
Posts:12
01/04/2002 10:27 AM
With all the concern over a perfect foundation, I wondered if anyone had considered over building the forms by enough that after they were poured, vibrated and settled into place, a level line could be struck at the correct height and the forms could be cut to create a better seat for the top cap. I envision doing this before the concrete has completely cured.
I see this solving a couple of problems,
1. The perfection of the foundation would not be as critical,
2. and any uneven settling could be corrected.
Any thoughts?
Ian ICF Builders
Registered Users
Posts:612
01/04/2002 6:50 PM
Barret:
You might want to subscribe to the ICF Monitor....There was a good article in one of the issues about your topic....delivering the correct grade at the top of the wall.
Ian
365
Registered Users
Posts:36
01/07/2002 5:52 AM
Barret: Not so level slabs can also be a problem when putting in a second floor. You shoot in a great level floor and the framer has to deal with the spre-cut studs not working to well without shimming depending on how bad the slab is. But to answer your question. There are a number of practical ways to handle this if the slab is not out to much. First of all an 8 foot high wall usually has some kind of sill plate on the top of the wall which allows you a little cutting room on the foam to level the wall. If the slab is out a lot you can screw some temporary 2x4 or plywood to the forms to level them and add to the height of the wall if necessary.
I like to put foam inside the temporary form work to insulate this area. I usually get this foam from the scrap around windows or doors. If the house is not to complicated this takes very little extra time and levels the top of the wall quickly, gives a great screed for the concrete, and wastes no foam or lumber. From a manufacturers stand point what you are suggesting is possible obviously. It would just be a little difficult to accomplish from a practical stand point. It's all a numbers game. How many people have foundations off by how much and does it now require people with 8 foot walls to cut their blocks if they do a good job on the foundation as opposed to some people doing a lousy job and requiring the cutting. Don't think it has not crossed a lot of our minds for other reasons also. Keep those thoughts coming Barret. This industry has a long way to go yet.
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