Closed cell spray foam for me. Waterproof, no potential tape gap problems. No foam board surfing. Gravel must be compacted level, then a FAN nozzle for the foam application. Wire on top after cure, not embedded. Heat tubes also if desired. You can get a board like level surface for the concrete to pour on, but you gotta start with the dirt!
If I had a recommendation I would always recommend spray foam under slabs. Superior to sheet xps, no joins or cut outs around pipes, and it’s a vapour barrier. If the slab is structural their needs to min concrete thickness as per engineer specs. You smashed it out, as always, nice job. Cheers from Oz
Good job once again you and your guy's professionalism shines through being able to adapt and overcome weird obstacles. Wish you guys were here in Mexico I have three slabs that need to be poured right now.
@@MikeDayConcrete Great! Have fun! A lot to do here. Holbox is a great little get away, crystal clear water. We're thinking of using CEMEX as they are pretty much an international cement company.
Could you expand on any outcome issues you see with the spray foam? Saw the poked up Hog wire, difficult to order the right amount, will it affect the final product? Love the vids Mike, I’ll join the underground soon!!!
Always had my own pump! Takes a lot of pressure off trying to coordinate the pump and concrete delivery. When done pumping your mud send it out to pump for the other guys! $$$$😀
I know its been used for some time now but Im still skeptical about using the 2 inch rigid insulation as well. I mean you have to get the base material completely flat for that foam to not have any issues with compression and then possibly having cracking issues cause of that.
It’s not a worry! Over thinking! At the same time to properly grade for concrete is not that hard when u tamp it properly. No one ever wants to put the extra effort into the subase.
It’s hard to believe the spay foam would be less expensive than the foam sheets. Makes me wonder if they aren’t sticking it to us on spray foam in my area.
@@randyanderson1983 Where I’m at yellow is pen cell and green is closed cell . But I wouldn’t think you could walk on open cell? I am definitely not an expert.
@@c50ge if you’re in the USA it’s not required for the manufacture to dye the material. In Canada it is so they can see if it was the installer or manufacturer error. In the USA, Lapolla/Demilac has a blue/green closed cell. However they’re the only one I know of with a dyed foam.
As someone who owns a spray foam business… you can’t make the foam even if you’re spraying over an uneven surface but with that being said wouldn’t you want the foam to follow the contour of the ground instead of leaving empty voids under the concrete?? Seems like foam boards would leave voids where it could settle and be more likely to crack.
How do you decide what screeding pattern you’re going to do? This one has me a bit confused. You blew out the first truck and then screeded about 5 feet off the wall the whole way down before really getting into the meat of it. Why would you do that instead of blowing the truck out, and not doing that 5 ft screed off the wall, rather just use your wet pads and make longer rips
Hello sir, I'm doing a patio for my girlfriends family, buying all the finishing tools, it's 12ftx15ft and a size walk 3ft x15 ft..... I was wondering what bull float size I should get, I'm thinking about a 42in but I can also get a 72in. Which would you recommend
View on youtube and contact Spray Jones, he has sprayed the ground before concrete and has never mentioned any problems. He has been doing this for 20 yr
How thick is that spray foam ? One thing for sure is I`ve spoke to engineers on the subject of roughness on the grade such as seen hear and they definitely will start to talk about slab structure integrity saying it will cause the slab to fail not being smooth on the grade.
@@theradonpros - (you don't seem to have gotten an answer) yes one can shave closed cell sprayfoam, as all the foam buildup is closed cell, there isn't a single "membrane" as with most other membrane types. Probably good to spray the foam on top of a plastic membrane to start with to eliminate problems in the event it cracks - No Idea if this is ""a thing" - also puts rodent/insect attack one layer further away.
You're complaining about SPF being uneven, but if you use rigid board all that "unevenness" would be empty space under the slab and as soon as the walls go up all your pretty new concrete is going to end up looking like a spider web of cracks because of those voids. Spray foam fills everything perfectly its far superior to rigid board in literally every way. How is that not obvious?
@@oneiros1401 concrete is not a copper heat sink... It's not that good at transferring heat. The basement air will also heat the concrete wall slower but to the same degree
Misleading title for sure. Buy the way how does your foam board work when you’ve got that many people walking all over it and busting it to pieces if the ground isn’t perfect rendering it useless but hey it’s covered with cret so no one will ever know there shitty insulation job.
Closed cell spray foam for me. Waterproof, no potential tape gap problems. No foam board surfing. Gravel must be compacted level, then a FAN nozzle for the foam application. Wire on top after cure, not embedded. Heat tubes also if desired. You can get a board like level surface for the concrete to pour on, but you gotta start with the dirt!
If I had a recommendation I would always recommend spray foam under slabs.
Superior to sheet xps, no joins or cut outs around pipes, and it’s a vapour barrier.
If the slab is structural their needs to min concrete thickness as per engineer specs.
You smashed it out, as always, nice job.
Cheers from Oz
Thank you!
Is that stuff termite proof? Do they put boron or something else like the foam boards?
As someone who does spray foam for a living, seeing foam that uneven makes me sad. It's super easy to spray down and make it look flat
I agree, that was a terrible spray foam job for spraying down.
Love the new camera perspective you're doing lately.
Thanks
I'm with you, poured a heated drive over spray foam and radiant tubing, grade varied by 2". Much rather pour over rigid foam.
Good job once again you and your guy's professionalism shines through being able to adapt and overcome weird obstacles. Wish you guys were here in Mexico I have three slabs that need to be poured right now.
I'll be just south of Cancun in a couple weeks.
@@MikeDayConcrete Great! Have fun! A lot to do here. Holbox is a great little get away, crystal clear water. We're thinking of using CEMEX as they are pretty much an international cement company.
Not sure what is different about this video but it is definitely one of my favourites. Awesome and keep em coming!
Thanks! Will do!
Could you expand on any outcome issues you see with the spray foam? Saw the poked up Hog wire, difficult to order the right amount, will it affect the final product?
Love the vids Mike, I’ll join the underground soon!!!
Question why do you have to pump it there’s lots of room there
So blessed with your vids ! You inspire me so much that ur the reason why I started my TH-cam channel sir 🙏🏼
Always had my own pump! Takes a lot of pressure off trying to coordinate the pump and concrete delivery. When done pumping your mud send it out to pump for the other guys! $$$$😀
I know its been used for some time now but Im still skeptical about using the 2 inch rigid insulation as well. I mean you have to get the base material completely flat for that foam to not have any issues with compression and then possibly having cracking issues cause of that.
It’s not a worry! Over thinking! At the same time to properly grade for concrete is not that hard when u tamp it properly. No one ever wants to put the extra effort into the subase.
It’s hard to believe the spay foam would be less expensive than the foam sheets.
Makes me wonder if they aren’t sticking it to us on spray foam in my area.
They could be. Hopefully not.
I thought closed cell was always dyed a diff color and open was white or yell kinda odd also
@@randyanderson1983
Where I’m at yellow is pen cell and green is closed cell . But I wouldn’t think you could walk on open cell? I am definitely not an expert.
@@c50ge if you’re in the USA it’s not required for the manufacture to dye the material. In Canada it is so they can see if it was the installer or manufacturer error.
In the USA, Lapolla/Demilac has a blue/green closed cell. However they’re the only one I know of with a dyed foam.
As someone who owns a spray foam business… you can’t make the foam even if you’re spraying over an uneven surface but with that being said wouldn’t you want the foam to follow the contour of the ground instead of leaving empty voids under the concrete?? Seems like foam boards would leave voids where it could settle and be more likely to crack.
Just had mine spray foam. Way better than the 4x8 sheets.
Ur the man !!! You inspire me to keep making videos on TH-cam boss
hey love watching your videos. I was wondering if you would be able to tell if there is a way for home owners to buy the admixes that you use
You can buy them from fritzpak.com
Nice to see a good firmness to cement…can’t stand all those pours with way to much water in cement( is it soup)
How do you decide what screeding pattern you’re going to do? This one has me a bit confused. You blew out the first truck and then screeded about 5 feet off the wall the whole way down before really getting into the meat of it. Why would you do that instead of blowing the truck out, and not doing that 5 ft screed off the wall, rather just use your wet pads and make longer rips
Just curious and am always trying to learn the better method. You are the máster and I figured there is a method to the madness
The owner wanted that first 5' flat, then sloped the rest out the garage door.
Hey Mike, I don't know concrete but are there any concerns with that floor not being tied into the surrounding walls with rebar?
THe first truck mix looks really dry. I think you mentioned that you like to use a mix with super plasticizer to make it more workable
He had a hard time getting it up to our slump.
Hello sir, I'm doing a patio for my girlfriends family, buying all the finishing tools, it's 12ftx15ft and a size walk 3ft x15 ft..... I was wondering what bull float size I should get, I'm thinking about a 42in but I can also get a 72in. Which would you recommend
4' bull float would be a good one to start with. You'll be able to use it for a variety of jobs as well. Good luck and cheers!
No steel in the basement? Didn't know anyplace allowed that in code.
Looks good as always brother💪🏼
Did that basement pour have fly ash or pigment in it it seemed darker than the first pour?
No, it was the same mix.
What time of year is this pour?
View on youtube and contact Spray Jones, he has sprayed the ground before concrete and has never mentioned any problems. He has been doing this for 20 yr
What are your thoughts on rigid Styrofoam slabs in the concrete roof for insulation?
please see how pipes are laid in Europe and Russia. no one would have certified such a bad job. But concrete's job - good👍🏻
Great job, that was different with that spray foam. Blessings 🙏
Yes it was
Can you Bull float spray foam?
That would be nice!
How thick is that spray foam ? One thing for sure is I`ve spoke to engineers on the subject of roughness on the grade such as seen hear and they definitely will start to talk about slab structure integrity saying it will cause the slab to fail not being smooth on the grade.
Where in Maine are you I’m in Lebanon
good job mike
Just need to use a laser when applying the spray foam. Then afterwards use the Lazer to shave the high points.
That would have helped here, thanks!
Can closed cell be shaved without affecting the membrane properties?
@@theradonpros - (you don't seem to have gotten an answer) yes one can shave closed cell sprayfoam, as all the foam buildup is closed cell, there isn't a single "membrane" as with most other membrane types.
Probably good to spray the foam on top of a plastic membrane to start with to eliminate problems in the event it cracks - No Idea if this is ""a thing" - also puts rodent/insect attack one layer further away.
Excelente trabajo
Thank you!
You're complaining about SPF being uneven, but if you use rigid board all that "unevenness" would be empty space under the slab and as soon as the walls go up all your pretty new concrete is going to end up looking like a spider web of cracks because of those voids. Spray foam fills everything perfectly its far superior to rigid board in literally every way. How is that not obvious?
Excelente trabajo 👊 💯👌🏻
Хорошая работа!👍
I hope we get to do a collaboration still this year ! 🤟🏼
do it often foam application done by experienced person leaves it flat
Everyone's wearing coats lol been hot in maine
👍nice
Thank you! Cheers!
You mean always use spray foam bud. Nothing compares.
But it's such an uneven surface, very hard to get an even grade and guesstimate the yardage of Concrete.
Closed cell foam board is much easier to work.
@@CtheG420 surfaces grading should not be dependent on what concrete is poured on.. you don't have to have yardage figured out perfectly
This was really out of level, wasted too much concrete just making sure we didn't run out.
Just don't make any sense to spray foam
is it just me or there's no thermal break between the outside wall and the floor?
Why do you care? Floor provides heat.
@@xephael3485 the pad they poured has direct contact with the wall, so all the heat will escape into the wall and onto the outside
@@oneiros1401 concrete is not a copper heat sink... It's not that good at transferring heat. The basement air will also heat the concrete wall slower but to the same degree
That is wet
Dude you could always pound that down when the wire comes out get a fucking sledgehammer no you don’t have to do that but I’m just saying it goes down
You would need to worry about hiting one of the heating pipes,
Just for giggles how about a video of bloopers.
Misleading title. It isn't that big of a deal .....
Misleading title for sure. Buy the way how does your foam board work when you’ve got that many people walking all over it and busting it to pieces if the ground isn’t perfect rendering it useless but hey it’s covered with cret so no one will ever know there shitty insulation job.