Skelly_GSR
New Member
Posts:3
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| 09 Aug 2010 09:25 PM |
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Hello all, first post go easy on me. Tried to search the best I could and did not find what I was looking for.
Just purchased a two story(has basement also) that had two of its block foundation walls damaged from a hillside that moved. The majority of the damage was done at the corner of the house and two of the walls will need to be replaced. After doing some reading at FineHomebuilding I saw some information on ICF's and it started to catch my attention. My questions are as follows:
1. Can I use ICF's on the two damaged walls only?
2. My father in law can get those house posts at cost, I would use one everyother joist or so do lift the house slightly off the damaged foundation (1/4''). If I only lift it off that much is it even possible for me to get the concrete into the ICF's?
I dont know if this has been asked before, and I apologize if its a repost. I'm hoping this is possible. I appreciate any and all feedback. |
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ICFconstruction
Veteran Member
Posts:1324
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| 10 Aug 2010 05:29 AM |
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1. Yes, you can use ICFs to replace just two of the walls. Your contractor should knock holes in the CMUs that are staying, have the rebar extend into them and make sure the concrete flows into the CMUs.
2. A beam should still be used when shoring the house to distribute the weight on ALL the joists. To get concrete in the ICFs you can cut out some holes in the side, fill to there, and fill the last course from between the joists. |
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| Brad Kvanbek - ICFconstruction.net |
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Skelly_GSR
New Member
Posts:3
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| 10 Aug 2010 07:18 AM |
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Posted By ICFconstruction on 10 Aug 2010 05:29 AM
1. Yes, you can use ICFs to replace just two of the walls. Your contractor should knock holes in the CMUs that are staying, have the rebar extend into them and make sure the concrete flows into the CMUs.
2. A beam should still be used when shoring the house to distribute the weight on ALL the joists. To get concrete in the ICFs you can cut out some holes in the side, fill to there, and fill the last course from between the joists. Brad, Thanks for the response. This is good news. I'm still new to the ICF technology and will continue to read as much as I can on here. On question 2, just to clarify what you mean. Are you saying to cut holes in the side(of what?) If you can explain a little more it would be much appreciated. Thanks. Regards, Kevin  |
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bruce merritt
New Member
Posts:3
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| 17 Aug 2010 02:59 PM |
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As an ARXX builder, why not do all four walls with ICFs? You have to lift the house off all the walls anyway. If you don't want to do all four walls with ICFs, then why not do the 2 new walls with just traditional concrete walls. Having 2 ICF walls won't really do anything for your basement space, in terms of insulation value etc. Your other two block walls will allow cold in.
Unless the block walls are insulated, which is unclear.
Bruce M. |
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wes
Advanced Member
Posts:810
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| 18 Aug 2010 06:28 AM |
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Kevin,
I believe Brad was saying cut holes in the sides of the top ICFs to allow placement of the concrete. The plugs can be foamed back into place, and the final few inchels of concrete can be placed by hand. It will actually be easier to use ICFs than concrete blocks, and a lot stronger. Interestingly, I just recently had a conversation with a professional foundation restoration specialist who told me that his company now uses ICFs on all wall replacement work.
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| Wes Shelby<br>Design Systems Group<br>Murray KY<br>[email protected] |
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ICFconstruction
Veteran Member
Posts:1324
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| 18 Aug 2010 06:51 AM |
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Yes, what Wes said. I have also done underpin jobs with CMU, getting the last course in was difficult and next to impossible to get it in plumb. Let along core filling them. |
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| Brad Kvanbek - ICFconstruction.net |
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Skelly_GSR
New Member
Posts:3
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| 18 Aug 2010 06:48 PM |
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Thanks for all the responses guys.
The reason I would choose to do ICF is that I could do a majority of the work myself with the help of friends. I can get dealer pricing on rebar and those basement posts.
Here was my thought process, please chime in if this does not sound doable.
1. Order the ICF's, rebar, posts, ect.
2. lift house enough to raise off back wall.
3. Knock back wall down and start erecting ICF's, including rebar.
4. Have a pumping truck come in and fill ICF''s
5. Do the same for the left wall.
Again, I'm new at this so any insight would be greatly appreciated. How would one screed the top ICF when the joist is sitting 1/4'" above the ICF? Thanks |
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James Eggert
Basic Member
Posts:411
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| 18 Aug 2010 09:29 PM |
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There is probably no value in lifting the house, simply because of the amount of money you will spend to do it.
Consider bracing or building temp walls to hold up the house in place, remove the bad walls, and install the ICF forms about 8 1/2" down from the bottom of plate. Pump, probably a grout style pump, the walls full, then install an 8" block under the sill plates. To handle the anchoring to the wall, you can install either long bolts into the ICFs ot threaded rods with large washers into the ICFs, at a spacing appropriate for your wind zone. You will cut the blocks where the rods are in the way, but this way you don't have to grout the blocks solid, although with more planning you could fill them.
The guesstimate cost of lifting the house would pay for the ICF forms! Now, if you need extra ceiling space in the basement, then by all means go for the lift!
This method also only takes one pump trip, again saving a considerable amount of money!
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| Take Care<br>Jim<br><br>Design/Build/Consulting<br>"Not So Big" Design Proponent |
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athurart09
New Member
Posts:1
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| 25 Aug 2010 11:00 PM |
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Posted By ICFconstruction on 10 Aug 2010 05:29 AM
1. Yes, you can use ICFs to replace just two of the walls. Your contractor should knock holes in the CMUs that are staying, have the rebar extend into them and make sure the concrete flows into the CMUs.
2. A beam should still be used when shoring the house to distribute the weight on ALL the joists. To get concrete in the ICFs you can cut out some holes in the side, fill to there, and fill the last course from between the joists.
Thank you so much for the post. It's really informative!
__________________ Watch Takers Online Free |
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dwangle
New Member
Posts:78
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| 31 Aug 2010 04:03 PM |
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I have a basement contractor in this area that uses ICF's a lot on his basement repairs. He will actually stack the ICF's all of the way up to the bottom plate, cut a hole in the corner of the top block, insert a 20' stick of 2" pvc pipe, hook it up to a line pump, pull the pipe out slowly as the wall gets full, then puts the foam back into the hole. Works absolutely fantastic. |
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| ICF for life |
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ICFconstruction
Veteran Member
Posts:1324
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| 31 Aug 2010 04:10 PM |
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Very interesting, he fills the entire height through the PVC? Do you know how he connects the PVC to the line? |
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| Brad Kvanbek - ICFconstruction.net |
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dwangle
New Member
Posts:78
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| 31 Aug 2010 10:29 PM |
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The whole entire height. Tight against the plate. The line pump has a connector that threads onto the end of the pvc. It really works great. |
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| ICF for life |
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dwangle
New Member
Posts:78
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| 31 Aug 2010 10:29 PM |
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The whole entire height. Tight against the plate. The line pump has a connector that threads onto the end of the pvc. It really works great. |
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| ICF for life |
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