Overlifting Concrete Sidewalk with Spray Foam Cans - Part 2, FnF302

[@tomiossi8092]

Wow, I’m shocked. Never thought the pressure would be there as opposed to mud or commercial foam. BRAVO. That’s a CAN do attitude.

[@friendnfamily9053]

Thanks!

[@ralphbell6880]

Trial and error, you learn and you succeed. This kind of project is very smart to do, especially that you haven't called a company or contracter to do the work. Good job.

[@friendnfamily9053]

Thanks for the kind words!

[@skyhound4373]

Thats one of those projects I'd spend $100 on and 4 hours of work, just for my wife to say yea I cant tell you did anything. 🤦‍♂️

[@Level-333]

Totally!

[@ericwalker6546]

Only for those who need to be recognized for doing something they are supposed to do. Just do it because it’s the right thing to do. If not for your neighbors walking bye.

[@heathkill4821]

Aint that the truth lol😂

[@dschafer6634]

Absolutely true! Lol

[@moonovermiami9787]

Don't do it for your wife. Do it for your property value.

[@Kelly-mq9ds]

Wow, just wow. I was about to pay someone to come do this for lots of money. Giving this a try today, thanks man! This deserves more views and thumbs up votes!

[@lewisgeer1994]

Did it work for you????

[@LessThanHandy]

Yes! Please be sure to keep the rest of us posted....

[@skeezix8156]

@@lewisgeer1994my neighbor tried this by drilling three holes, it cracked the concrete to the edges after the foam went in. Worth a try I guess though

[@friendnfamily9053]

@@skeezix8156 Thank you for watching and commenting!

[@jenny-DD]

Since it's to high now- he's liable for Trips He did work so he can be sued

[@FredFlintstone21]

Well insulated underneath! Nice added bonus!

[@TravelOften]

Great video. I like how you explain it in only 3.5 minutes. Other videos, we would still be in their wanna be movie credits

[@ericl2969]

"Wanna-be movie credits". Excellent!!!

[@friendnfamily9053]

I appreciate that!

[@michaelmargraf844]

I'm prepared my slab by lifting 1" before applying foam....I'm going to take this next slowly. I never suspected the foam would over lift... Wish me luck.. Many years thinking how to do this .. The day has arrived. No broken slab...ty

[@tonyv33ee]

What is that blurred out by the joint 🤔

[@stevie6420]

Aww noodle's we lifted it too high now we have to lift the other 8 slabs lol

[@f87115]

I’m raising my house today4 inches ,,, how many cans do i need for a 35x40 foundation

[@colbyprince9409]

550

[@byf4ith]

All of them.

[@MrPink2024]

Just 1.

[@jimmartin7881]

Call the Amish, they'll roll in 100 deep and lift it by hand. And I ain't kidding.

[@f87115]

@@jimmartin7881 that is no joke,,, best people ever

[@omarpopioco9997]

A nice honest video. Did the thing - mistake made - tip at end of video to avoid the mistake. Didn't hide mistake and pretended it all worked out, leaving viewers to think "this is so easy... nothing can go wrong". Good video of the reality and caution of doing this. Thank you for posting 👍👍👍

[@friendnfamily9053]

@@omarpopioco9997 Thank you!

[@nursewratchet59]

I did mine. Worked great. Quick project. Thanks for this!

[@friendnfamily9053]

Thanks for sharing!

[@jordanlovesdubstep]

did it hold up after a year?

[@friendnfamily9053]

@@jordanlovesdubstep Thank you for following up! It’s still holding up after 3 years.

[@HaimTabibi]

So glad I watched this. My slab was about 0.5 in low as well. Tripping hazard. Used four cans instead of six. It is almost perfect. Amazed at the foam coming from the expansion joints.

[@friendnfamily9053]

@@HaimTabibi Thank you for sharing

[@ThomasPartida]

That was freaking awesome.

[@elainephleps4705]

This actually does work. My leg. Cement square on my frount step. Was wobbly and unleveled. I used 3 cans and it set back up where it was suppose too be. I did one can at a time in different area let it sit for 1-2 hrs did another. My landlord thought I was nuts!! But it worked.

[@friendnfamily9053]

Thank you for sharing! I plan to have updates on how the concrete slabs have been holding up!

[@f87115]

So I am curious how long it stays level

[@sroberds640]

I hate to break it to everyone but that type of foam will crush over time and the slab will fall again, you need to use foam that has a lbs designation, I used a 5 lbs foam to shore up a soft wooden plywood deck to prevent having to tear it out, but you would need to find a way to inject it. You can hit it with hammer as hard as you want and it won't really do anything to it. If you hit cured spray foam with a hammer it will crush.

[@SpicySteve-tz2so]

Couldn't read you last few comments because of the links you posted covering them up. Seemed to work good, I will try it.

[@quercuslobata3776]

Different foams for a different amount of lift. Blue can for minimal Black can for large. Red can for in between. Also the amount of moisture in the ground affects cure.. Foam if enough used and cured should hold up. Some plumbers use foam under fiberglass bathtubs . If it looks like you over filled, put a piece of plywood across the joint with added weight. Will keep it from going too high.

[@randybobandy9828]

Or just use less

[@rpllieb]

Pretty cool. 👍 There are all kinds of applications for foam. Highway and freeway on and off-ramps, airport runways, buildings. Oh and don't forget car bumpers with plastic over them 🤣

[@cha-ka8671]

I thought I would need a professional service to do this. Thank you so much for doing this. Sure they might get it spot on but, with some hard work I’m sure we can do it ourselves pretty darn close.

[@Deathcroak]

Many different types of cans I'll try the pond or outdoor if they have it, I'm sure they do

[@theprophetez1357]

I use the foam when installing a tub so that it doesn't give and flex. I used to put a bag of concrete under them, but the foam is easier and works well. Just be sure to go a little at a time and make sure the tub is filled with water or it will lift it and cause damage. That's a nice trick on the sidewalk too.

[@jeremyeaston3105]

Never thought of that on tubs! Thanks bro I hate mudding tubs this sounds way quicker..👍

[@theprophetez1357]

@@jeremyeaston3105 Just don't overdo it, and be sure to fill the tub with water.

[@TheAIRspace]

@@theprophetez1357 I was a plumber 30 years, I started using it when I realized all the whirlpools we're being foamed. Your right way way nicer than concrete on this cheap fiberglass / acrylic tubs. Better on sound than mudding them too. On new construction you gotta fill the tubs for inspection, so I'd fill them then go around and foam them in, was a real time and mess saver. Barely costs more then setting in Crete as well.

[@theprophetez1357]

@@TheAIRspace Yep I find it to have lots of advantages. You know I can't figure out why they call plumbers plumbers, or why they call carpenters carpenters. After all it is carpenters that have to keep things plumb, and plumbers sometimes cause damage that takes a carpenter to fix. So I think a name reversal is in order. 😃😁. Keep up the good work AIR space. 👍

[@TheAIRspace]

@@theprophetez1357 well 7 ruptured discs later, Im out of that whole plumbing gig, but its all good. I paint stuff for people create art and make youtube videos about art now. And dabble in building science and remodel my own place slowly but surely. Personally Instead of using canned foam, id get a closed cell Kit (for less money overall) for raising a slab like this gentleman did. There is valid concerns about the open cell trapping water and heaving from frost as mentioned. But on a tub the cans are awesome, and I used TONS of the fireblock foam after it came out where I was doing apartment fire restoration work for a few years. As for causing damage. We used to say the only thing worse than termites for your house are plumbers electricians and hvac techs :) Cause a bad one can cut up a lot of stuff that don't need to be :)

[@PappyNet01]

Whoa! Thanks for sharing your project. That was impressive: I didn't think that the Great Stuff spray foam cans would have enough pressure to lift the slab. I have one can of the Great Stuff spray foam and thank God I didn't use it on my truck instead I used 3M Strip Caulk on my rear windshield, cabin pressure vents and third brake light [3M™ Strip Calk, 08578, Black, 1 ft Strips, 60 per carton, 12 cartons per case]

[@cthunter41]

When it comes up through the cracks and sides, let it dry all the way and it'll chunk off clean. Do not wipe it while still drying. Also make sure to get the kind that expands. Few tips if anyone is going to try this. Looks good!

[@SuperSummit123]

You get that stuff on your hands when it's wet you look like you've been digging around in a dirty butthole for about a week.

[@jazzer82]

@@SuperSummit123 Hahaha! This is true. I learned that the hard way. It's a bitch trying to clean it off your hands.

[@bradcliff7099]

LOL I don't believe they make a non expanding foam like this in a can! It wouldn't make any sense!

[@cthunter41]

@bradcliff7099 yes they do. They make a very low expanding foam for windows and doors so it doesn't bind the jam up and lock em in place. There's high expanding, landscape for ponds, fire retardedant, bug retardedant, big gap filler. There's lots buddy, i so this shit for a living. If you get the shit the windows it won't expand at all under pressure must be in atmosphere pressure to expand what little it does

[@bradcliff7099]

@cthunter41 Yeah ok I see where you got me on this, but seriously if anyone goes and buys the very low expanding kind, when they know exactly what they are attempting to lift, says to me they don't understand what the different degrees of expansion can do or will do, they really have no business taking on something like this. I'm a truck driver of 30 years and no good at electrical wiring, so I leave it to the electricians. Really my comment was mainly in humor as in I was getting at its kind of common knowledge when buying a can of this that there is an expectation of expansion. No harm no fouls!

[@GoldSword777]

That was so cool. I always wondered about that! Thanks for showing your project!

[@friendnfamily9053]

Thank you!

[@stealhty1]

I used 4 Cans and over lift it 3 degrees ,Im going to do 3 Cans now , Thx for share

[@JC-of2nm]

Alternatively, 2 pry bars, 1 flat shovel, a bag of sand, & a bag of gravel. (Edit: some sort of blocking [2] for leverage) But this is definitely some big brain thinking, foam is amazingly versatile in application. I have used it as a seal

[@mikeygee4564]

No way, seriously? It'd be so much easier just to bust it up and lay a new slab than do that. You'd have to lift the whole damn thing up just to get the gravel and sand underneath it, and then struggle getting at level again. That's ridiculous.

[@JC-of2nm]

@@mikeygee4564 sure if it was bigger than a 3x3 slab. But this is just fixing sidewalk slabs, why go through all that labor and expense, plus you don't have to fiddle with finishing the surface of a new slab to match the rest. Have you worked concrete before? If you have and this is your suggestion then you must be a masochist. However, on a more positive note your suggestion WOULD add longer life to the section. (Edit: I have never had to struggle to level ANYTHING.)

[@FarmerFpv]

@@mikeygee4564 you obviously don't work with concrete. Let's all sing it together Macho Macho macho man I want to be a macho Macho Man.

[@mikeygee4564]

@@FarmerFpv nah you're right. I had enough sense to get educated and make a much better, and more lucrative, living with my noggin. I have worked concrete a decent amount for my own projects, and that's where my experience and input came from, and it sounds like I may have been wrong compared to you guys who slug gray mud for a living. My apologies, and I'll take your word for it. But it's still nice knowing I'm wrong and can pay an ass like you to do it for me for what I make in an hour. If you're nice, I'll by you beer and dinner too. I may even let you eat on the porch. (I kid, I kid - I'm not really this much of a pretentious dick, but it's fun poking at twats that surge on the simple thing they know, in an asshole manner). In all seriousness, I greatly respect your craft. I certainly can't do it as well as you.

[@mikeygee4564]

@@JC-of2nm fair enough. I don't do it for a living so I'll take your word for it. IME, I've struggled quite a bit getting a slab level after all that work just getting it up (that's what she said). but cheers to ya for knowing what your doing and doing it well.

[@Aftermath-o4f]

I don’t know if this worked long term but I think it’s worth a try. What I find amazing is what a bunch of complainers and armchair quarterbacks this video attracted 🥴

[@HTHAMMACK1]

Probably not. That foam will break down eventually.

[@frijoli9579]

Gotta' say, I am impressed.

[@mackendw]

the method I used was to build a jig out of wood and put a single lift point hole in the lower slab and use a car jack to lift the slab up to level ...then drill 7-8 holes and fill with low expansion foam to fill the void. that way it won't lift it up too much but still fill the void.

[@mike289homebuilt5]

Awsome. This is one of the koolest videos i have ever seen. I have a pad i need to lift, I think it would be more stable with a railroad ties knocked under it once its lifted then go back and replace the foam with rock sand mix.

[@friendnfamily9053]

Thanks!

[@travisk5589]

Interesting choice. Sds bits with a regular drill. Seemed to work fairly well

[@travisk5589]

@Ebutuoy Skcus Just because that drill has a setting that says hammer, that doesn't make it a hammer drill. An sds drill would have work at least 3x faster, probably more.

[@travisk5589]

@Ebutuoy Skcus since you obviously know nothing of the subject, i will educate you. The whole "hammer drill" feature on the drill in the video is a marketing ploy so that idiots like you think that they are getting a drill capable of drilling through dense material. That style of hammer drill is barely better than useless for drilling through concrete. The bit used on the video is not meant for said drill and i would be willing to bet that the bit was the only reason that drill did so well. The drill in the link is a true hammer drill hence the name roto hammer. In the future it will be you well to not speak out of turn. It makes you appear stupid. www.homedepot.com/p/DEWALT-20-Volt-MAX-Cordless-Brushless-1-in-SDS-Plus-D-Handle-Concrete-Masonry-Rotary-Hammer-Tool-Only-DCH133B/300753220

[@travisk5589]

@Ebutuoy Skcus Lol, Just look at the thumbs up.

[@travisk5589]

@Ebutuoy Skcus wow, you have a strange view of reality.

[@travisk5589]

@Ebutuoy Skcus you are silly if you think that i am remotely triggered.

[@Doctrtony]

Definitely worth it to buy the great stuff foam gun saves a lot of hassle on cleanup, if you turn the vacuum to blow while you're drilling it blows out the dust and sends the drill into hyper speed. Just tips

[@michaelbidwell4210]

Just the tips? Lol

[@Doctrtony]

@@michaelbidwell4210 just the tip... Just the tip 🦙

[@Bowfinger6383]

And nothing but the tip, so help me God.

[@themaximusone]

What is that blue thing blurred out on the left is that an air nozzel fitting for ???

[@robbybiddle9236]

1:15 dude. You’re pressing too hard and bent the shit out of your bit. That’s why it wobbles so much now. Let the drill do the work.

[@durtygroove]

He needs an sds. Those are cringy for concrete 😂

[@jeffreywilmot3798]

@@durtygroove It is an SDS, he put it in a regular chuck.

[@jeffreywilmot3798]

Way too long of a bit for the job and he never appears to clean the hole with the bit as he's drilling. Smoked it.

[@durtygroove]

@@jeffreywilmot3798 so he doesn't have an sds. Smh. You love to argue don't you?

[@OneWildTurkey]

@@durtygroove 0:30 sure looks like an SDS bit when it's laying on the sidewalk.

[@kenreynolds1000]

Just saying.... A 6 foot pry bar under the slab would lift it better so your foam would expand to fill the gap instead of squirting out. a couple of rocks to act as fulcrums and wedges to help with twist as well

[@chrisparker4940]

Exactly!! You stole my reply.

[@Hitngan]

Not really, the foam is acting under pressure therefore distribution the overall Youngs Modulus creating a uniform pressure. This will last much longer lifting with a crow bar.

[@1943L]

Mine is not where I could get a bar under.

[@josephmalinowski6817]

This is stupid take a block of wood like you said a big pry bar and some dirt but also you have to look at the condition that's not cracked

[@SuzukiKid400]

@@Hitngan I 100% agree. As the foam starts to lift the slab, it opens up free space underneath the entire slab which more foam rushes in to fill. It’s actually quite genius how this works and in the end, the force distribution is absolutely perfect, far better than even tamping a layer of gravel would provide because you would NEVER get the compaction of the underlying material and the flatness to perfectly match up with the flatness of the slab. This is quite brilliant.

[@AS-zw4lk]

did this last year and it worked great - just remember to drill well spaced holes so the lifting force is distributed over a large area of the slab, otherwise it may crack.

[@friendnfamily9053]

Thank you for sharing!

[@xthaking]

Is the driveway still level or did sink with the foam?

[@friendnfamily9053]

@@xthaking Thank you for watching and asking! Stay tuned for follow-up videos on how the concrete slabs have been holding up!

[@sneakyb8731]

@@xthaking That foam breaks down and the sidewalk WILL sink back down , but he''ll figure that out the hard way

[@Setherino86]

@@sneakyb8731 Is this what has happened to your concrete job? What material lasts longer than polyurethane?

[@civildk9077]

btw.. I apply my 'baking' tip to doing this. Spray pam NON stick to the pan or apply your choice of butter or applesauce and THEN.. A 'small' amount of the DRY MIX, dusting the pan, to prevent sticking... IN this case.. LEAVE THE CONCRETE DUST, in place, anywhere the foam 'may' touch the concrete. Why? To prevent 'sticking' and for EASY clean up, once dried. "Should", come right up.. and then, allow for however you wish to clean further. My opinion. Works the same way on siding. The foam, will adhere to the grime / dust / dirt / mold / mildew, and NOT your siding, IF you don't clean it 1st. In my experience.

[@alpagano50]

Dig a hole on each side about the size of coffee can, Insert a 2x4 under block and use a 2x4 on grass and lift slab, after you lift it insert foam from sides to support. now you can control the lift . works for sidewalks not large slabs of a driveway.

[@stevemcennan2972]

Can we get an update on how well this held up over time?

[@friendnfamily9053]

@@stevemcennan2972 Still holding up just fine

[@elainenilsson5472]

Any particular reason you don't start at the lowest part and put the foam there?

[@jfrankie80]

I'm thinking is so it lifts evenly and naturally pushes foam only where there are gaps

[@elainenilsson5472]

@@jfrankie80 Right, so like there isn't any gap where it is sunk so if you raise the other side some it will make a gap to push foam into

[@Hammerjockeyrepair]

take a 4x8 foot sheet of glass and lift it by only one corner... SNAP!!

[@unclefuddelmer8611]

On my way to buy a case of "Lifting Foam" ( For daughters 10 front sidewalk slabs ! ) TNX for the idea

[@Retrogradeinversion]

This works! I did not know about this until a few days ago, came across it randomly watching KZbin videos. I had a roughly 20 foot section of sidewalk poured directly adjacent to an exterior wall, it had settled so that it was slanting toward the house (not good!). I decided to try this. A couple hours work, and my sidewalk is now slanting away from the house providing proper drainage. I drilled holes roughly 18" apart on the low side of the sidewalk. I did use 20 cans , at about 6 bucks each from my local big box hardware store. Worth it though, way cheaper than paying someone, I'm real happy that this worked out for me.

[@superdutyscaler6823]

If you paid a legitimate company to pour a sidewalk and it sunk after they finished. You NEED to contact them and have them come back, rip it out, put a proper sub base down and pour a new sidewalk that's properly pitched away from your homes foundation

[@MovieMakingMan]

What size drill bit did you use?

[@Retrogradeinversion]

I used a 1/4 x 12" carbide bit. A hammer drill worked best for me, picked up a cheap one for the purpose.

[@arabiantxn]

This is really cool thanks

[@anupamashirole1455]

Appreciate ur honest review in the end

[@friendnfamily9053]

Thank you for watching and commenting!

[@jamespatton3720]

I’m impressed!!!

[@bretgreen5314]

Well done; thank you for sharing

[@maintmanification]

Educational video,cracks me up to read all the arm chair quarter backs giving there 2 cents worth of there crap,you wish you could lift a concrete side walk,operate a smart phone,make a vid, post a vid.......ignore stupes that can click,but hurt,type, repeat. Great vid

[@kennethhlavik8155]

They make me laugh also. Except for the probably soaking , some old lady out of her hard earned money!!🤡

[@marcohernandez701]

pretty cool trying this first

[@rkafulani]

Best hack ever. Thanks so much🙌🙌

[@bjj21]

Dam impressive man. I like it. Good work

[@garyhelms1889]

I have a void spot under my driveway. It's not in an area that will endure heavy loads. It's not huge but I have been debating on what to do. I believe this will work!!!!!!!!!

[@friendnfamily9053]

Thank you for watching and commenting!

[@joeguilfoyle1922]

You said it over lifted 1/2". Did it ever even out with time. Even if it didn't, it still looked better than before. Thanks for video. Very cool idea.

[@friendnfamily9053]

Thanks for watching and commenting! You are right that it did not even out, but it looked better! I had lifted the other side 3 weeks ago to even out in video FnF460, HT066, Lift Concrete Slab W Spray Foam Can, Part 6: kzbin.info/www/bejne/kHiwZ3aOpaxrmJo

[@randymeyer6482]

No holes drilled on the worst side?...and was wondering how you would stop it..

[@thehamburglar9mm]

Why does this one paver that is flat have all these holes drilled in it?

[@bobace1270]

This is open cell foam that is used for insulation and is not for structural use. The cells are air bubbles and will compress and not spring back to original shape thus making this a temporary repair. Open cell also is not waterproof so will deteriorate. Need to use a high density closed cell foam that is a structural foam.

[@cabbagehead4706]

Great idea but use some leverage(crowbar) to help it hit flush out with the higher one A little piece of grit or what have you will stop the foam from raising it

[@bigrob4868]

I think you need a longer masonry bit 😂

[@jonnyboy4774]

Lmao. all I thought the whole time

[@albundy5198]

I was like how thick is that slab😂

[@wurthmannd024]

I was cringing a little as all i could do was picture a water line or wire running underneath or something lol

[@Jake-tq2vr]

Right that's my concern how do you deal with over lifted slab from foam

[@bucho-b8d]

Good job 👍prevented someone from tripping over using their Sandals

[@noskills9577]

Interesting. Seen it on tv with structural foam - wouldn’t of guessed regular foam would have enough expansion power to lift a bit of slab.

[@friendnfamily9053]

Thank you for watching and commenting!

[@chadpreston5549]

It’s the same stuff

[@gr8t1bobo]

Doesn't it just sink back down after time? I would just dig around it and put dirt under it to make sure it stays level forever. Seems like extra cost and alot of work.

[@thehumantoeRD]

@@gr8t1bobo Im wondering about that as well....

[@jdp4812]

@@gr8t1bobo it wouldn't sink back down unless the sub-base fails again. But you could do what you said you just wouldn't want to use dirt, you'd want to use gravel.

[@SuperMarioVending]

fascinating.... I might just try this instead of grinding...

[@machia0705]

Back in 2011 I leveled the concrete around an in-ground swimming pool. This really works. Anyone know it’s compression strength?

[@Machia52612]

@@goblin003 Thank you!

[@pattognozzi]

Did it hold up? That is open cell foam, opposed to closed cell, so it would technically not fare well with water contact

[@johnkraemer9584]

Loctite makes an expanding close cell foam

[@Watthead80]

Yeah, I'd like to see it a few years from now after foot traffic and cold weather cycle (if theyre in a cold zone) Having the voids could cause frost heaving.

[@OneWildTurkey]

I think you'll find it's actually closed cell, not open.

[@joshmcc5518]

This will last for about five years, so pretty sweet for repeat customers I guess, I just like it when mine pay me

[@brandietate3620]

Thank you for posting this video!!! I would much rather try this on a small level before spending 400 on secure set foam and finding it will not work out for me. I am shocked that this video has 3200+ views but only 38 people could be bothered to give it a thumbs up or down.

[@friendnfamily9053]

Thank you for watching and commenting!

[@WhatSoEverThingsAreLovely]

Thank you KZbin algorithm. I don't know why you decided to steer me towards this particular video but I kinna needed to know this! Me thinks perhaps my phone is _listening_ to me more than I'm aware!! Hhhmmm!! _🤔😳🤫_

[@TurboMountTV]

How to know how many holes to drill and cans to use? Thanks.

[@speed3000gt]

I thought the foam keeps expanding as it dries... do you have an updated picture or video to show how level it is now after curing? Did it raise too high? Thanks for sharing the video, I'm going to try it

[@friendnfamily9053]

Hi, thank you for asking. It did raise 0.5-1" higher than expected. Should use less than 4 cans of foam, instead. Will do a follow-up video on this soon.

[@LessThanHandy]

@@friendnfamily9053 Can't wait for that follow up video. Really enjoyed this one for we sure have plenty of u leveling ourselves...

[@chevman46]

Would ot be better to block it up first then foam ...?

[@jimjordan5630]

@@chevman46 Maybe that would be like lifting you car up with a large pry bar and then putting the jack under it? That's the purpose of the foam, to lift the slab (which is usually very heavy) and while lifting the slab, the foam is also compressed giving support under the slab. If you lift it first, then by the time the foam expands, it will seriously raise the slab even higher. IMHO JS

[@chanhnguyen2215]

When do they fix overlifting concrete, same like this how much it cost please ?

[@willrobinson7599]

And how much did 6 canscost compared to lifting the slab and putting sand ect under

[@hurtfultruth6188]

Have you ever tried to lift a slab of concrete that is roughly 5 ft by 5 ft and 4 to 6 in thick or thicker? So many people think of this but have never tried it for themselves and realize it rarely works.

[@JTOTHEW3000]

It looks like it was done before . How long does it last until you have to raise it again?

[@friendnfamily9053]

Still holding since then

[@cani6767]

Very cool video, would like a follow-up video to let us know if there is any settling occurring with the concrete overtime.

[@friendnfamily9053]

Thank you for watching and commenting! Stay tuned for follow-up videos on how the concrete slabs have been holding up!

[@nickfoskin4600]

How much would that cost to do. Plus you have 4 small holes left in slab. Easier and cheaper to lift and put some sand and cement in

[@dcisfun]

Those cans are not cheap plus he used the expanding foam there is filler foam too that doesn’t expand later. But in the end they can’t take the weight of repeated traffic and might slide off the slab if the soil is clay

[@LACAJUN420]

That's actually good that it went over level just a hair because at the end of the day it's still spray foam it's going to compact after you walk on it a little bit

[@friendnfamily9053]

Thank you for watching and commenting!

[@reneadinaro8183]

You sure about that? Not being sarcastic. 1/2 inch is more than a hair. What do you guesstimate the compression will be in cubic numbers? I'm not doubting you. Just throw out some numbers.

[@ericl2969]

Walking on it won't matter. Let's say the slab section is 4' x 5'. A 200-pound person standing in the center would exert less than 2 pounds per square foot on the soil below. Compared to the ~75 pounds per square foot of the concrete itself (assuming a 6-inch slab), that's just too small of an increase to matter. There might be other cases where loading would have an effect, but no worries regarding foot traffic. Loss of volume due to decreased "foamy-ness" over time might be an issue if the stuff degrades eventually, but that's a different issue.

[@Christopher2211-t5o]

How would u know how much to use and not over lift it

[@whiteknightcat]

He didn't. That's why he over lifted it.

[@firedude5135]

How thick do you think the concrete is??

[@Droningonuk]

What is the blue censored thing? And why is it censored?

[@ELMarTiLL0]

What size drill bit did you use to drill the holes ???

[@friendnfamily9053]

Hi, I used 3/16” bit.

[@pococaros8254]

Super Smart , LEARNED!

[@jasondoiron2020]

With this method it is better if it ends up higher anyway within a week it will settle and be flush

[@TMFXLLC]

This is a cool trick, you'll have more success if you use a block and a bar to help lift and maintain the desired height.

[@michaelgonzalez5377]

WOW OUTSTANDING VIDEO. This is truly genius 👏, thank you for the great advice that I will use in the future. OUTSTANDING.

[@haitran2011]

Anh có thể cho biết tên của loại drill bit Brand nào không làm ơn tôi xài 3 loại drill bit đều thất bại không qua được slab nhà cảm ơn videos chia sẻ của bạn

[@friendnfamily9053]

Hi, sorry to hear. I still have some drill bits that I can donate for your project. Kindly email your shipping address when you can.

[@haitran2011]

@@friendnfamily9053 . . Thank you for your response , yes please if you don't mind and no need to reuse , I will pay for the cost ,I don't know where the location you live, but my address , 12502 Corning Dr Houston TX 77089 tên tôi là Hải Trần cảm ơn anh bạn

[@friendnfamily9053]

@@haitran2011 Không có chi! Bạn có thể vô link này gởi email qua được không: kzbin.info/door/mYBMU8eGGCmxz6JL5g-pgQabout. Tracking and shipping info không tiện gởi qua trong này.

[@haitran2011]

@@friendnfamily9053 ... Kiến thức mình còn giới hạn quá , vào Link của bạn nhưng không tài nào biết gởi address đi được , note trước đó tôi có gởi address của tôi không biết bạn có thấy không... Còn ở trong đây mình gởi e-mail của mình trên đây hay số phone để bạn text có ổn không... Chắc làm phiền bạn thôi không sao đâu cảm ơn bạn nhiều

[@friendnfamily9053]

@@haitran2011 Không sao. Gia đình tôi ở Ohio, thứ Sáu này bay qua Houston, rồ lái xe xuống Galveston theo xa lộ 45. Tiếc là không đem theo máy bay được. Ngày mai sẽ gửi cho bạn 3 drill bits qua USPS. Đầu tuần sau bạn có thể nhận được.

[@WilliamJoseph2015]

Wow didn't think regular foam can could do it. Thumbs up.

[@friendnfamily9053]

Thank you for watching and commenting! Stay tuned for follow-up videos on how the concrete slabs have been holding up!

[@StragglerTx]

Had a resident spray the foam in a crack on rent house ,,ended up separating it 4 inches lol that was a fun fix

[@WilliamJoseph2015]

@@StragglerTx wow. I'm looking for the perfect project to test this out. Will upload my results

[@badtothebone346]

Can this stuff withstand the weight of cars?

[@nesco713]

Can you lift the sidewalk from the side with a jack and some clamps and the pour in some cement???

[@matej.m.rejsek8537]

OK, I'm impressed.

[@mikes6961]

There in lies the problem. Just how much weight per can and hoe much does it weigh? Dont want it popping out

[@rockrunner86t89]

That's awesome work man. I thought the cans would not get close to the psi to lift the pad. Good job. ✌😎

[@Browns4life]

The foam lifts the pad by expanding, it really has nothing to do with the can pressure

[@johnmca5643]

That was unusually entertaining.

[@Edwardjonez]

That slab is only a couple of inches thick you don't need a 2 ft drill bit, and it looks like you did a good job

[@slippinslidewayz]

How is this holding up after 2 years?

[@friendnfamily9053]

Thanks for following up! This is still holding up pretty well.

[@leahsmith191]

Why do so many videos jack sidewalk up before foaming? Have they just not tried this method/

[@evantspurrell]

how is that open cell foam working out ?

[@friendnfamily9053]

Still holding up just fine.

[@FernandoRodriguez-ds5ri]

Now why I didn’t see this before spending over 200$ to replace my sidewalk that had sunk 2” .

[@ClaytonTownley]

Wonder if this method will work on my big driveway slab, which is 10' x 12'. It's sunken down a couple inches.

[@georgebehary1842]

How thick was the slab. I have a 5’ x 16’ that the concrete at the sagging end is almost afoot thick, but mostly the slab is 6” thick. I was wondering if I half to help it along with a couple hydraulic jacks on the heavy end.

[@SaltySeaDawg125]

I would jack it up first then fill. Your material is going to travel to the least resistant area that being the thinner part of the slab.

[@dirkdiggler4860]

Umm just pry it up and put fill under it some gravel or a few rocks. Im sure this works but spray foam soaks up water and breaks down quick in the elements 🤷‍♂️

[@troyc5994]

If you think prying works, go try it and come back and tell us about it.

[@hurtfultruth6188]

@@troyc5994 my thought when that comment too. If you pry on a 100 sidewalks it might work on one of them.

[@tooz56]

If you hire a professional that using lifting foam designed specifically for this task, and NOT WINDOW/DOOR foam, it actually works very well.

[@michaelhamerin3814]

@@tooz56 It's called pumpjacking. They use a polycrete compound not foam.

[@jeremiahmnjohnson]

Man, this is genius 👏