Building an ICF Stem Wall (Insulated Concrete Forms)
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- Опубліковано 12 жов 2019
- We finally got our stem wall put together, I thought it was going to take a long time to do it, but it only took a day. We used Build Block ICF's (insulated concrete forms) to build the stem wall. l had never used them before and they are pretty self explanatory, and worked really well.
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ICF legos for the win!! I need to pour a foundation under my house and this looks like the way to do it!!
Nice work well done.
Thank you!
Finally...
an unboxing video!
Haha! Maybe when we move in we'll do more unboxing videos lol!
good to watch side note a sharp saw is wonderful
Glad you enjoyed it, and it was probably the battery going dead on the circular saw as the blade and saw were almost brand new! If it was the band saw, well yes it still needs a new blade!
hey thanks for the video, for the horizontal rebarb , are they spaced out every 2 feet?
The first horizontal rebar is about 8" from the bottom of the stem wall and the top row is about 3" from the top of the wall, so they are about 2'6" away from each other. The way I drew it on the plans was that the bottom rebar would be in the bottom 6" of the wall and the top would be in the top " but because of how the ICF's are made it would have been a huge pain in the butt to put the rebar in any lower. Hope that answers your question!
Can I ask how much the forms cost? I looked some up to use for my addition and it was good g to cost over 10k for the forms!
I had a friend lose an eye to rebar because he wasn't wearing eye protection. At the very least cap the rebar with the orange nylon caps.
Surprised you did not key-in the foundation wall to the footing.
Fairly common across the Continent to do that when it comes to reinforced concrete footings and reinforced concrete walls.
That deffinately wouldn't hurt, however I've never seen or heard about that practice being used in residential construction around here, may be different where you're from. Thanks for watching!
I've seen hundreds and hundreds of foundation builds in person and on youtube and not a single one used any kind of keying, even just a little rectangular slot using a 2x4. They've all been completely flat on top of the footer.
Besides the missing rebar on each course, I believe there are ICF metal clips that need to connect each block joint (top and bottom), at least on the first course.
PLUS, if you are going the 4' deep (crawl space) why not just dig the extra 4 and make a full basement?
If you are back filling for a garage floor, why do the foundation wall at all?
we are not back filling for a garage. Digging a full basement would have involved about a week of jack hammering rock and I was not going to do that, nor was I going to pay someone to do that. Also the rebar is placed according to the building plans so none is missing. There are no "ICF metal clips" needed anywhere in the build per manufacturers specs. I also don't even think our manufacturer makes ICF clips. Thanks for watching.
@@PootsPastures
If creating crawl spacing why not completely clear all soil out before building walls?
Im in Toronto and we have more rebar requirements and the manufacture does have metal clips, especially for certain joints.
Thanks for the reply.
Like I said the manufacturer we used for ICF's doesn't have metal clips note are they required per our manufacturer. Others may be different. And we didn't clear out all the soil because of machine and time restraints. We have plenty of space in the crawlspace for what we need, just our choice.
Does this stuff give out bust out easy?
The only place where you risk blowing out is really the bottom if you don't secure it to the footing well enough. Otherwise if you had a really tall wall you would have more of a risk if it wasn't braced properly. But the forms themselves are really sturdy and durable. Honestly if we hadn't braced it we probably wouldn't have any issues besides not being plum. Hope that helps!
Is This hard labor to do every day just got a job offer doing this
It is hard, but honestly concrete has become one of my favorite things to do!
How thick is the footer?
12"thick 24" wide
What is the Manufacturer of your ICF SYSTEM?
Most ICF Manufacturers use a Common Seam in the middle of each wall, instead of cutting to fit like you did.
On the Common Seam lumber or plywood are used on both sides of the wall to reenforce the seam.
Does your manufacturer say in the Instruction Manual to assemble the wall like that, or was it your choosing?
Build Block is the manufacturer. I read the instruction manual prior to putting the ICF's together, but it was honestly a while ago so I can't remember if they called for the common seam, but I don't remember them explicitly calling for it. I did consider both options before I put the wall together, I honestly don't really like the idea of a common seam when you could just cut to fit like I did, staggering the cuts. The common seam seamed like a big vulnerability to me when it came time to pour. Thanks for watching.
Poots Pastures
You should call the manufacturer.
The reason there is a common seam is because there is a +or- factor in the size of the blocks and it is difficult to get the forms square without the command seam.
The seam is held together with clears on both sides and foam in the gap.
i do not know what your lag time is on your videos getting up-loaded...
But give them a call.
@@BrianBriCurInTheOC I went back and read the installation instructions again and it appears that a common seam is not necessary. They just advise against placing a cut block near a corner. They did mention a common seam once in the instructions but made no other mention of it. We were slightly out of square but I was comfortable with how much and it seamed to be an issue of not being able to measure from corner to corner until the 3rd row and the blocks being too heavy to move at that point. Also our lag time is about a month so if you have any suggestions for framing walls send them our way!
P.S. I do really appreciate the feed back as I don't have a construction background so most of this is new to me!
Poots Pastures
If you do not want to have difficulties get it as square as possible.
Hi where you bought this withe polisterol for doing the wall?? Do you have a link??
They are "Build Block", but there are a ton of different companies that make ICF forms, I don't have a link but a quick google search will get you a bunch of manufacturers.
Canada, Calgary.
Rebar is not done right for the code here. DIY People, please check with engineer for the code requirements. I had to put 2 rebars inside AND outside in the bracket 2 inches away from footing, then 1 rebar ON THE INSIDE on the ICF wall every layer and then 2 more rebars inside and outside of at the top layer
Dang that's a lot of rebar. The codes in canada all ways seem to be ahead of the US. Thanks for watching!
Am I the only one thinking about what I’d bury in that mound of soil in the crawl space?
Haha just don't ask what we buried under the footings lol!
DPC ??
You should have put rebar in every row not just in the top row. That would never pass inspection anywhere.
Rebar is in the bottom 12" horizontally as well as the top 12" horizontally. It was approved by the county and passed the inspection. It is up to code.
@@PootsPastures
I thought Flagstaff is a earthquake zone? Mild, still earthquake? What strength of concrete did you guys use? 4,000 psi?