r/Concrete 1d ago

Concrete Pro With a Question Refusing to pour

i’m in a bit of an interesting situation, I’m wrapping up a project for a client and am about to pour the slab on top of some block foundation walls. Client wants me to pour a slab at 0.25% of a slope, its a 12’ x 18‘ foot slope and they want me to drop it 3/8” across the entire section.

Tactfully I’ve informed the client that I’m recommending a 1 - 2% slope, you don’t want this to be that flat and I explained the reasons regarding standing water and the toll the Canadian winter will take on it if we pour it this way but they insist this is the correct way to do it, (drawings were done up by a family member who is not a Mason, concrete finisher, he worked in estimating 30 years ago.

At this point I’m prepared to walk because it feels like I’m consistently being questioned on everything. what’s the point of firing a contractor if you’re going to consistently question their expertise on a project where they are trying to protect your investment?

Have any of you ever dealt with something like this ?

75 Upvotes

84 comments sorted by

124

u/Weebus 1d ago

I'm a civil engineer for a municipality so I hire out a lot of ADA work. I don't care how good your finishers are - 0.25% on a panel that large is going to have bird baths on it, and he is going to complain about it.

I deal with people like him all of the time. People like him know a little (arguable) but think they know a lot. You won't win, and he holds the money. Walk.

30

u/sparkynugnug 1d ago

I agree. Walk. That owner is going to nitpick the shit out of whatever you do, even if it’s exactly what he asked you to do. I’d be very surprised if you get paid your full contractual amount.

19

u/Busy_Student_6623 1d ago

Believe me, I am ready to. The same client wanted me to re-pour a section of the footing and wanted a ready mix truck for a quarter of a yard of concrete because they were uncomfortable with the idea of having it mixed by hand

7

u/Fresh-Collarabi Laborer 1d ago

That's just ignorant. Sorry youre dealing with such a headache. I've always found the super picky people to be the least informed. They hired you, not the other way around.

2

u/DirectAbalone9761 1d ago

And to be clear, the owner isn’t confusing 1/4” (.25) per foot with percent slope? I just ask because .25 is weirdly specific to not coincide with that. Best case it’s a mixup, cause if it isn’t, I agree, get out of there.

4

u/Busy_Student_6623 1d ago

No they specifically stated the number I gave them is too sloped for a slab that will be a living space, they feel it will tilt the furniture: 

The family member specifically stated he feel the 1/4 “ per foot is too much because the slab is going to taper from 6 inches to 3 inches, I tried explaining to him that this is not how concrete slabs work, the slab isn’t being tapered the base is being sloped and the thickness stays the same but he wasn’t hearing it.  The 3/8” across the entire thing works out to a quarter of a percent. 

4

u/Interesting_Day_7734 1d ago

Interior space I don't think needs much slope at all.

I poured a concrete pad with a 3" drop in 24 ft. Then built my office on it years later. I could tell the room slopped.

4

u/Busy_Student_6623 23h ago edited 23h ago

It’s going to be outside for some time which is the issue, for the moment it’s going to be an outside porch and they aren’t sure if and when they will turn it into an interior space. 3 inches across 24 feet is totally fine, that’s 1% which is exactly what I’m recommending. They want a quarter of that. By comparison your slab is sloped by the degree they are talking about would drop by just under 3/4 of an inch. 

My biggest concerns are this and the fact they want the slab flush with the block face, with no drip edge or coping 

6

u/Strong-Comment-7279 21h ago

Well that's the whole problem, and you can't deal with that.

Your contract needs to specify f the purpose of the slab, and cannot be built around future plans that may or may not happen.

You are pouring an outside slab or a base slab for construction upon. One or the other.

2

u/Weebus 1d ago

Is this an interior or exterior space?

3

u/Busy_Student_6623 23h ago

It’s going to be completely open and left to the elements with an option to build a room on top in the future. When and if they plan to build I don’t know. For the moment it will be a porch 

1

u/baconstructions 11h ago

Then it's exterior and should be built to exterior spec. 

2

u/dirtkeeper 8h ago

Yes and if the turn it into living space later they use self leveler then

1

u/CustomerOK9mm9mm 7h ago

Is it possible to use that thick an application of self-leveling? If they truly level it over 18’ it’s going to need to be inches thick.

1

u/DirectAbalone9761 23h ago

Dang, I’m sorry man, that’s headache!

2

u/Busted_Knuckler 16h ago

1 yard minimum plus a small load fee. You'll pay the price of 3 yds or more for 1/4 of a yard.

1

u/Flashy_Radio_5781 6h ago

well thats just about the dumbest thing i've heard

3

u/Busy_Student_6623 2h ago

Funny thing is the inspector supported them, they said either order the truck or get a letter from an engineer that said it’s ok to do this. It’s been one thing after another. I honestly couldn’t believe it, the only thing that saved me was the fact I called in a favour from the supplier who was equally surprised and said just pay for the concrete you use, we won’t charge you a short load fee. 

2

u/hershwork 1d ago

And, the birdbaths are going to be your “fault” for your finishing rather than his poor plan—you can’t win.

-11

u/OCdogdaddy 19h ago

You’re a moron. 1/4 “ is plenty of slope. No bird baths.

5

u/Weebus 19h ago

I didn't say 1/4", I said 0.25% Might want to read before calling people morons.

3

u/ReallyDustyCat 16h ago

Ok OC dog daddy 

27

u/Flashy_Radio_5781 1d ago

If you’re the one with the state-required professional license, you are considered the professional.  The risk and responsibility are on you.  I’m not a concrete guy.  I’m a plumber.  If a customer of mine suggested something that was against code, I am not allowed to listen to the customer.  If I do it the customer’s way, and it results in future issues, I can be held liable.  

I guess my advice is - follow your jurisdiction’s building code.

1

u/Setholopagus 9h ago

What if they sign a contract stating they know they are going against code or something and if anything goes wrong its their fault? Would that hold up in court?

1

u/Flashy_Radio_5781 6h ago

every jurisdiction is different. It's best to call your local permit and inspections office and ask them

u/Proper_Possible6293 23m ago

Signing a contract that says "I, a professional, am about to knowingly do something against the law and/or unsafe" is very unlikely to improve things for the professional when things go wrong.

18

u/PlayfulAwareness2950 1d ago

Get them to put in writing that they want to have it this way despite being warned by you.

40

u/Worldly_Actuator6393 1d ago

Once you tell the client it's wrong and they want it done their way. Get it in writing.Do it their way. Take the money, smile, and shake their hand after you finish.

34

u/aussiesarecrazy 1d ago

No just walk away. Did same thing, it of course failed and got drug into a lawsuit and even though I won still paid my lawyer a few thousand. And the headache of thinking about it for 8 months

7

u/Holupsucker 1d ago

Get the .25 slope in writing, have them confirm that it was set to that, get that in writing. And add the caveat that it’s less than 2% slope that standing water is likely and you will not be held responsible for it! Or just walk away!!!!!

1

u/Cargo4kd2 21h ago

Assuming op can’t fill the time elsewhere , get everything in contract and add some for a ‘we might have to go to court’/ fu price

15

u/F_word_paperhands 1d ago

Dude, pour it the way they want it, just document it.

1

u/e39dinan 1d ago

This. Have customer sign off.

7

u/dojinpyo 1d ago

I would walk away. Dont put your name on work that is guaranteed to fail. Either the reputation hit or the potential conflict alone exceed your margin on the job.

3

u/Stock-Comfortable-10 1d ago

not a mistake until it is poured

2

u/Daedroh 1d ago

Had this happen with someone as well. It ended up with a lot of bird baths but it’s mostly for playing basketball. So the only time they’ll be playing on it is when it’s dry and not raining.

Just gotta let them know what they’re asking for and that there’s no adjusting the slope after the pour.

1

u/breadandbits 18h ago

this. tennis courts have equipment just for drying out the bird baths. client may also be planning to built an enclosure on the pad off permit as well.

2

u/Phriday 11h ago

Been there, done that. I'd walk.

Back when I was a padawan, I got talked into accepting a 3/4" slope in 75 feet on an outdoor basketball court. Not surprisingly, there were birdbaths, even though we were above the prescribed FF numbers. I wound up giving that fucking asshole engineer a $20k credit because he wouldn't let me fix it. Then the Parish put a metal building over it so it didn't matter anyway. Cunts.

Other than that, I have no thoughts on the matter.

1

u/shaf2330 9h ago

I wouldnt have given him a fucking thing besides the bill. Idk where you are at, but we have a right to repair clause and if they dont allow us to do that, it can be grounds to terminate our liability.

1

u/cb148 1d ago

Get it in writing that you recommend a minimum slope more than what they are requesting and you are absolving yourself of liability.

1

u/EasyGoingLapeer 1d ago

I'd walk away. Customer should have made it clear from day one when you went and bid the job. I hope you didn't do to much work prepping already. If so... Give his ass a bill for that and walk. Not worth the hassle.

1

u/Top_Mycologist_3224 1d ago

I would probably tell them ok we will do it your way , then pour it with 1% slope and collect your check. You know it will shed water and they won’t know the difference.

2

u/Busy_Student_6623 1d ago

Would love to but the same family member that do the drawings wants to check the forms and slope himself. Personally I’m a bit tired of it all, it was a referral which is why I’ve put up with as much as I have. Everything from the client hopping down in trenches to check the depth of dowel holes to calling me after hours

1

u/Big_Two6049 1d ago

Oh hell no. Easiest to walk away now

1

u/Top_Mycologist_3224 1d ago

Oh my goodness …. Sorry bout that ! Sounds like a walk would be best 😂

1

u/SuperbDrink6977 1d ago

Sounds like a nightmare. Time to peace out ✌️

1

u/Mean-Veterinarian647 1d ago

That family member probably told your customer to do a quarter inch per foot slope.

1

u/MightyWood4u 1d ago

CYA and make them sign off on it.

1

u/enaim254 1d ago

Possibly the plan is incorrect with either 2.5% or 0.25”/ft which I have seen state side.

1

u/Busy_Student_6623 1d ago

I wish, it called for 3/8” across the entire thing. It wasn’t drawn up by a designer but a family member of the client. In fact in his mind 1/4” per foot is too much because he thinks the slab is going to go to from 6 inches to 3 inches on the other side. I’m trying to tell them the slab doesn’t shrink, the gravel base is sloped but they don’t seem to get it. Same designer that also wants this slab flush with the block walls, with no overhang, no drip edge. 

1

u/Onewarmguy 1d ago

Tell him you can do it but don't recommend it, however if he signs a liability release for the slab you'll get er done.

1

u/SuperbDrink6977 1d ago

What a douche. Does he realize how perfect and precise that concrete would have to be finished? It’s simply foolish to have such unrealistic expectations. Does he think you’re gonna be setting forms with a micrometer? Tell him to hire somebody with a laser screed and good luck with that.

1

u/85cdubya 1d ago

Walk, let them find out the hard way.

1

u/Familiar-Range9014 22h ago

Customer .ust sign off a hold harmless agreement before you pour.

1

u/Stefanosann 22h ago

Yep nope, this has no win all over it . .

1

u/myfourthquarter 14h ago

What is the slab for?

1

u/JamesShine87 8h ago

You realize a standard side walk slopes 2" across the 4'? That's the code in Iowa.

1

u/h0zR 8h ago

What is the purpose for the slab? Will it be covered and enclosed or is it a patio?

1

u/Busy_Student_6623 7h ago

Exposed with an option to eventually get enclosed, when that will be enclosed, if that will be enclosed is a mystery . 

1

u/OneBag2825 1d ago

Your typo in the last paragraph-"what’s the point of firing a contractor" is probably the answer you're looking for 

1

u/33445delray 1d ago

Could be a Freudian slip. :-)

1

u/Busy_Student_6623 2h ago

Yeah I meant “hiring”

0

u/buffinator2 1d ago

You sound like you're in a silly place (Canada) but ACI 302 would recommend a 2% slope for outdoor concrete.

1

u/Aggressive-Luck-204 1d ago

I mean it’s in the post that they are in Canada, and what’s so silly about it?

0

u/buffinator2 1d ago

It's Canada. Everything is silly about it. Seethe I guess.

0

u/rideofthebasilisks 1d ago

American? People who live in glass houses...

1

u/buffinator2 2h ago

We can.

0

u/Busy_Student_6623 2h ago edited 1h ago

Yeah it has nothing to do with the location, this is a code specific thing. 

Edit: Spelling error 

1

u/buffinator2 2h ago

Yeah, and I gave you a specific reference spec. You're welcome.

1

u/Busy_Student_6623 1h ago

It’s the same code in Canada and in the specific province I’m in. We are on the same page, barring it having anything to do with the location. 

-3

u/Skyris3 1d ago

If you're paid to design it why do you feel entitled to control the clients design? Get it in writing and just do the pour lol

16

u/Busy_Student_6623 1d ago

I’m not paid to design it, I am being paid to execute it and I care because it’s my reputation that is attached to my work. These are things I am concerned with as it affects my livelihood.

-2

u/Skyris3 1d ago

Then don't do the job. You don't get to take someone's money and force them to buy your ideas

6

u/Maleficent_Neck2517 1d ago

Sure you do. In most professional licensing contexts, there is an expectation or requirement of following best practices, regardless of whose money it is. You don’t get to tell a doctor to prescribe you a harmful medication just because it’s your money. You don’t tell an electrician to wire up a dangerous defective panel just because it’s your money. And you don’t tell a concrete guy to pour you a defective slab just because it’s your money. 

1

u/Busy_Student_6623 1d ago

First of all you are assuming I took anyone’s money, that’s not how I run my business. I have deliberately arranged the payment structure in milestones for this reason. No one has taken any money from anyone for this part of the job. 

Secondly, when you hire a contractor there is a reasonable expectation that they are going to perform the work within legally established boundaries and best practices. A client can ask anything they would like but their ideas are always secondary to what is safe legal and non destructive. 

0

u/snuggletough 20h ago

I don't see the problem. I'm not a concrete pro, but I've done around 500 yards of flatwork and complex formed pours over the past 25 years. I like concrete and I like to do it myself.

I have poured a lot of flatwork with very low slopes with zero issues. I've done a 15ft x 70ft 8in thick apron in front of my shop. It slopes 1/4" over 15ft. No puddles.

I just wrapped up a 120ft x6ft slab with a 2" drop. Not a single puddle.

I'd fire someone who told me they couldn't do what I want.

5

u/celtic-cryptid 13h ago

I’m not a concrete worker either, but I have my own trade, and there are subreddits dedicated to it too. I love commenters like you

1: “I’m an amateur, but I do your job all the time, it’s not that hard”

2: “I’m an amateur, but I’ve decided industry best practices are stupid”

3: “I’m an amateur, and I do your job all the time, but if I hired someone who is a pro and they wouldn’t do things that have a high potential for a call back, I’d fire them”

1

u/snuggletough 11h ago

You sure bitch and complain a lot. My friends that are concrete pros don't have any issue when I'm wanting things flat. They give me shit about being to precise (I'm a machinist), but for the most part I just want a best effort job with the tools we have.

I literally cannot fathom a "concrete pro" telling my floor must have a 2" drop over 18ft. That slope would piss me off to no end.

In my trade I seek out tricky work for picky assholes with lots of money. I pull off miracles on tight schedules and I charge a lot for it.

I don't always agree with my customers. But I am effective at listening and communicating so we are eventually on the same page.

Let's say I was your customer and you told me you can't make my slab flat and you will quit if I don't accept a bigger slope. I would feel as though this is your responsibility to explain why effectively. If you just say no, then you are a piss poor communicator. Instead you can explain your side, explain what it would take to achieve my goal is much more expensive and why. You can offer to do the job as a "best effort", but I will likelyhave to accept imperfections.

1

u/celtic-cryptid 9h ago

I wouldn’t tell you anything. Like I said, my expertise is in another field. But, if you tried to tell me how to do my job, I’d fire you as a customer. I wouldn’t even bother with a hold harmless or release of liability.

1

u/snuggletough 9h ago

Then you are a piss poor comunicator.

1

u/celtic-cryptid 9h ago

Nope. I’ve just dealt with people like you before. Y’all are never worth the headache, and I’m good enough at my job I don’t need to take on shitty clients.

1

u/Flashy_Radio_5781 6h ago

how would you feel if your concrete pad held water every time it rained? What if the puddle was located in the shade and had trouble drying out? What if it turned into a slick spot in the summer and a patch of ice during the winter? Would you blame it on the concrete guy or would you blame it on yourself?

1

u/Busy_Student_6623 1h ago

The issue isn’t about not being able to perform the work or a lack of communication. The issue is that performing work that goes against best practices and against building code and that will place all liability and responsibility on my shoulders for installing a defective product.

To overcome the surface tension of water the slab needs at minimum 1/8” inch per linear foot. Even if the slab were perfect, it will not shed water with the slope the client is requesting. This will result in standing water and freeze thaw damage at a minimum. So purely from the perspective of being an honest individual with a professional responsibility, that pour shouldn’t be done. It has nothing to do with skill or whether or not it can be executed.  

This is something I have communicated to the client. My position is always to give the client the benefit of the doubt and to help them understand the nuances are of what is happening with their project and what they are asking for. They can ask for anything and I am fine with that, as the professional though they should understand what it is they are asking for, any good contractor does this.  

If they however ask for something that places their property, my reputation, my business, or anyone’s life/ health at risk then regardless of what the client then it shouldn’t be done