How To Level Wood Subfloor with Floor Leveling Compound Mapei DIY MrYoucandoityourself
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- čas přidán 3. 10. 2020
- In this video, I gonna show you how to level the plywood subfloor with floor leveling compound and screed tripods step by step in your DIY project. Very important message for you - ALWAYS USE PRIMER when you pure self-leveling compound on wood subfloor!!!
Previous MrYoucandoityourself Leveling video: • How To Level Uneven Fl...
In this video for wood subfloor leveling I used:
- Screed Leveling Tripods - bit.ly/2uVCPfX
- 4D Laser Level - bit.ly/2uVCPfX
- Dewalt Drill for Mixer - amzn.to/2i8ku75
- Mapei Primer L - amzn.to/2F68iEX
- Self leveling floor compound - amzn.to/332I52k
- Foam Seal Roll - amzn.to/2i3ydAh
- Spike Roller - amzn.to/2hTv8iP
- Straight Edge 10 Ft. - amzn.to/2hNKhFj
- Gunite Shoes - amzn.to/2hC2btZ
- Concrete Finishing Trowel - amzn.to/2i3DMP9
- Hammer Tacker - amzn.to/2i3kWaL
- 1/2-Inch Staples - amzn.to/2h5UCwB
- Caulk Plus Silicone - amzn.to/2i9pR63
- Mapei Primer T -
- Mapei Self Leveler Plus
- Turbo Diamond Cup Wheel - amzn.to/2JOI20a
- Cyclone Dust Collector - amzn.to/2XPGJYP
- RIDGID 14-Gal. 6.0 HP Vac - amzn.to/2Sng27Y
- RIDGID Standard Wet/dry Vac Filter - amzn.to/2JNHM1A
- Shop Vacuum Bag Filter - amzn.to/2Y7E38u
- Festool Filter Bag for CT 36 - amzn.to/2XWl5x6
- Dust shroud - amzn.to/2XLWVKF
- Straight Edges from 2 to10 Ft. - amzn.to/2hNKhFj
- Safety Grip Protection Gloves - amzn.to/2Soe3jC
- Concrete grinder - amzn.to/2hTuCl7
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I appreciate all the work you putt in to your productions. I especially like the links you leave for the tools you are using. So helpful!
You're very welcome!
Glad I watched this before I did it now . Guess the basement is getting some more tools I’ll never use again
Thanks for coming to my channel!
Super well done, and thanks for taking the time for all the tools and materials. AWESOME!
Thanks for coming to my channel!
Классная работа!!! Спасибо за М К.
Благодарю!
Great explanation and demonstration, the perfect video and it’s so helpful that you have the links to what you used! This video is greatly appreciated. Thanks so much for creating it.
You are very welcome!
Very good, thanks. I learned some things on this video that I didn't on many others. very informative
Hi, Steve, thanks a lot for your positive comment!
Thank you for your great videos. I bought the lazer level you recommended in a previous video. It has a lazer on the bottom which makes finding the high spots much easier. I do not have the tripods but I saw another video where the guy put one screws in around the room at proper depth then filled until it was at the level i think i will try it.
Hi Mike, yes, you can try. For my almost 18 years experience I did many tries with many different ways and screw as well. Good luck with your project. Thanks for watching and commenting.
Thank you so much for this video very very helpful 😊
You are so welcome!
Good to see you putting out more videos thank you for that.
Question: what are you doing with the spiked roller when you are tapping the floor with it in some areas?
Hi, very good question! Spike roller can roll if not more than 3/4" deep. If it's more I am doing tapping to create waves which made flattening of liquid. Thanks!
Thanks for posting.
You’re welcome!
Bro... come on... the 6inch roller killed it for you😆👍. Good job ptherwise. Удачи тебе
Thanks for watching and commenting!
Very helpful thank you.
You are welcome!
Great video. Very helpful! 😊
Glad it was helpful!
Good work!
Thanks!
Great prep. No need for half of it.
Thanks for watching and commenting!
From this video, you'll learn how to use a floor leveling compound Mapey for your wood subfloor at home.
Mapei...just sayin
Great video!!!
Helped me A LOT!
Thanks 🙏👍
You’re welcome!!!
Very good.
Thanks!
Thanks for the video. Do you end up doing all the areas you primed at the same time or did you let that room dry before moving on?
Hi Peter, if you talking about exactly this project, I did all area separate by the room because some area in hallway was too high. I would recommend if you don’t have an experience just do the leveling by the room. It’s more easy. Thanks
What self leveling compound do you recommend for featheredge to one inch thick?
Thanks for putting out these videos.
Hi I am using Mapei products only. Easy one inch with Mapei Novoplan 2 Plus.
Hi, thanks for this great info. What sort of wheel were you using in your 7 inch angle grinder? It looked like a diamond concrete wheel? Can't be that, can it?
Here it is - czcams.com/video/Qh23N_6y3IU/video.html. Link in description. Thanks!
Very good work.
Thanks for watching and commenting!
Nice job
Thanks!
Hey, thank you for all your videos! They've very professional and informative. I know that they take a great deal of time to make and we all appreciate them.
I have a question regarding sealing the perimeter of a room. I took my walls down to the studs and put up new vapour barrier, along with a new 3/4" OSB sub-floor overtop of the old shiplap. There is a slight gap between the vapour barrier and the new sub-floor I was planning to fill with cement prior to self leveling. This would effectively seal the bottom of my barrier and the potential leak points in the old sub-floor in one step. How important is the foam edge acting as an expansion gap? Since my edges will be completely sealed by vapour barrier buried in cement. It seems easier to trowel in cement rather than go around filling every little crack with caulk
Hi Derek, yes, you can fill up with cement, no problem.
Great video
Thanks for the visit!
I’m putting down 3/4” oak flooring so needs to be nailed. The floor sags in the center about .4”. It tapers up to walls the room is about 19’ x 20’
For nail down you can do leveling floor with plywood. Here is example - czcams.com/video/UPowP3bez5A/video.html
Thanks!
Great video - thanks! Question: Is the foam sill tape temporary ? (do you remove it before installing the flooring? Seems like it would interfere with baseboard installation. Also, I only have 2 spots (opposite corners) that are low, so I will not have leveling compound across the entire room
Hi, when slc dry , I cut foam flat with slc. Some foam left between slc and walls.
Great Work! How long do you mix the 3 bags of mix and water ? i know they recommend 2 min with one bag but you are using 3 at once. also what type of mixer? paddle or egg beater? thanks!
Hi Will, good questions! I didn't count how many minutes I mixed every bag, just until there are no lumps in the barrel. I have two different mixers - Dewalt and Collomix. Collomix is very good, but my best square paddle doesn't fit this mixer. For barrel I used a big square paddle, for the basket - small 4 sides square paddle.
1. My favorite paddle for barrel - amzn.to/3O7OoXS
2. Paddle for basket - amzn.to/3aMsQCy
3. COLLOMIX Power Mixer - amzn.to/3Q9XOEm
4. Dewalt drill - amzn.to/3B1JrNv
Hi there, I am about to board my tongue and groove sun floor with 6mm plywood.. I have a slight slope at one end of my room should I put a thick plywood at that end of the room or just stick with 6mm for the whole project and let the self levelling compound do it’s job? Also is a spike roller enough to spread the compound out Level or would I need a long straight edge?
Hello Carl, it’s hard to understand what the best way in your project. If your subfloor all the way slightly slope down , you can use tripods make level not all the way, just to that point where it start slope. And next day make final connection compound and wood subfloor with straight edge.
I’m going to do this. Do you think I would need a waterproof layer on top of the underlayment if I did this in a bathroom and put peel and stick tiles on top?
Hi Kristyn, you put water proof protection , you can get more benefits in a future. Thanks
A couple questions, does this self leveler act as a moister barrier as well? Also will the flooring gun and flooring cleats/nails work with this? And what is the acceptable levelness? Like does it need to be exact center or slightly right or left fine as long as its not going over the line?
Good question’s.
1.SLC not protected from the moisture. 2. You can’t nailed through this SLC.
3.Accepted 1/16” for 8’.
Do you need to do this leveling process even with concrete flooring on the first floor? I’m going to be having engineered hardwood applied
Yes, if need it. I have many videos about it. Thanks
My contractor put sika self leveling over some out of level OSB in my living room and intends to nail down 3/4 pre-finished oak on top of that. I contend the nails won't go through the self leveling concrete. Is that correct? Can he use a combination of nail down and glue down to install the hardwood. I'm starting to worry about his hardwood floor installation ability.
Hi John, I can’t discuss about your contractor skills. I can say you how we doing in my area. For nail down we doing leveling with plywood, for floating floor and glue down installation we leveling with self leveling compound. In this video I do leveling for glue down. Thanks for your question!
Do you recommend grinder also for levelling out the levelling compound which does not come out as flat?
Yes, you can grinding SLC if needed. Thanks
Can you still attach plywood underlayment on top of this via crown staples or would the staples ruin the integrity of the self-leveling compound?
After leveling you can glue down plywood on top of it only.
This is an excellent video...
but I was wondering... wouldn't it have been cheaper and less time if you had just put down
a rolled underlayment? Surely a lot faster...
Thank you for sharing this video... My subfloor isn't as bad as this one.. WOW
This floor was too wavy, why I put so much compound. Sometimes if floor flat and level good, enough put just underlayment. Thanks!
Thank you for how much you help us DIYers out here! I am considering self levelling. I have dips and waves all over my chipboard floor, the deepest being 17mm. In one spot the floor bounces by 1-2mm where some boards meet, but can’t get to the underneath and don’t to take up as it may weaken the surrounding boards. Not sure if this means I can’t use leveller. Wondered whether laying a thicker ply, say 12mm would give the floor more rigidity to then level, but not sure how a thicker ply will behave being screwed over the bumps in the floor?
If your floor bounces, follow old nails or screw lines to put new screws to push you floor down. If there some empty spots where is plywood joint, need to cut som square hole for checking support underneath. Do you have stud checker?
Great!
Thanks!
Great job but what will you use for the finish floor? Everything I have read states that you can’t put hardwood flooring or anything that is nailed over the hardened leveling compound.
@@repoocwyaj you can glue down engineered hardwood floors. can also do floating installs
This is so much prep omg very good but why not just primer and apply glue and get it done that way is it a problem with just glueing on top of the plywood?
Because customer needs good job . Thanks
Can this be left as a finished floor, I like the look...and I plan to do this on a concrete foundation...Since I like this color of self level, I prefer to use this brand model of concrete...I do like the troweled look, so maybe it takes on if I trowel a little. Are there any additives I can put to give it more strength? I know in regular concrete they put fiber, but is there anything for this leveling? Also, do you recommend using mesh over the crack areas, in case this helps the top layer flex vs crack at the same spot?.
Yes, you can use it like finishing floor, just have to use epoxy for finishing. For epoxy floor specially using ARDEX compound. Thanks!
@@MrYoucandoityourself Do they have low shine, or matt? I really dont want to use epoxy on top. What do you think? I used to have a microtopping in another location...if there was a problem with a little area, I mixed a bit of it and just applied some like spacle.
You make it look easy...its not so easy in reality....your absolutely a master..
Thanks a lot for watching and commenting!
well done
Yes, thanks!
Hi how are you what you do after that , just install tiles on top of the self leveling ?
I installed glue down hardwood floor.
Is liquid self-leveling compound acceptable underlayment for tile? Or is an additional underlayment required such as durock or detria products?
Hi Scott, for sure you have to put anti fracture membrane extra. Thanks
What is an anti fracture membrane? Is that similar to aqau defense or redgard? Or are you referring to schluter ditra?
Can I use latex leveling compound on chipboard floordboard if i use a primer? (not OSB)
I did not use this material. Sorry.
After self levelling compound, which method you use of install engineering floor ? Nail or floating ?
Floating or glue down only.
Awesome videos, love the channel. Big fan. Quick question. Can this self leveler concept be used over an entire second floor if i intend to add Lx Vinyl flloring on top? I'm in Texas and I was told that some structural engineers do not recommend alot of concrete weight added to the entire floor especially for tiling adds to much weight on second floor.
Don't put a lot, use Laser and tripods to minimize volume of SLC. I specially make so many videos with leveling to show how to do it right and use right tools. Thanks!
@@MrYoucandoityourself thank you so much.
So do not put self leveling over the entire floor correct?
Question - some people say leveler will crumble underneath hardwood and make noise. I see you glue down on the leveler. Does the glue hold it together if it cracks?
Hi, cracks not affected glue down installation if your self leveling compound well bonded with wood subfloor. For better bonding use right material. I have a few videos about it. Now so many “ experts “. Ask them about, what the difference between Red and white oak to understand they qualification.
I have a problem because I raised a sunken living room 6" to be level with the concrete slab but how do I make the floor level when I have 2 different surfaces? Can you help me?
Watch my penultimate video, how to join two levels. Thanks
Mr. youcan, Is the floor in this video on a crawl space? Also is it necessary to place wire mesh within the floor leveling compound when poured for a 'tile' floor?
Here is a regular second floor - master bedroom, another bedroom, and a hallway. For tile installation, you have to put an anti-fracture membrane like Ditra. Thanks!
@@MrYoucandoityourself Wire mesh? Is that required (in addition to the isolation membrane/anti-fracture products?
Yes, you can put mesh too.
What type of primer did u use for the floor and what type of sealer did u use for the edges ??
Hi, for wood subfloor I used T-primer Mapei and white caulking Alex plus. Thanks!
Part of my subfloor was gauged when the glued on engineered floor was removed. Can I add a ¼ plywood on top before using self leveling compound, to bring it to old floor level?
Hi, theoretically yes. But for each situation needs different approaches. Thanks!
Would it be ok to glue engineered floor over self leveling compound that was done over plywood?
Hi, here is a next video I did glue down installation over this leveling - How To Change Direction To Lay Hardwood Floor Tricks and Tips MrYoucandoityourself
czcams.com/video/ee8-gvJRJSU/video.html
Hey boss this is excellent work! What is the primer for?
I used primer T Mapei for better bonding self leveling compound with wood subfloor.
Спасибо большое за видео 🙏🏻👍🏻
У меня есть вопрос?
Уже ответил.
I was thinking of using self leveler on a 1000sq ft floor over plyboard floor like in your video. The building is not always used though so it will get very cold in winter and hot in summer, unless someone is inside and turns on the heater. Do you think this could cause the leveler to crack if the plyboard is expanding/contracting?
If you used right primer, it can be with some cracks, but not pop up. What flooring material you gonna use over the slc?
Sorry for late reply, I got your question after 9 hours you posted.
@@MrYoucandoityourself Thanks for your reply. I was planning to just leave the slc as the floor itself, as I've seen in some other diy videos on youtube.
I changed my mind though.. no slc. May just paint the plyboard or put some liquid rubber on it to give it uniform look and leave it at that. The building is just storage/study/playroom for kids.
Hi, there is a big hump on our laminate floor which is about 1/4 inch. Can we just take that part off and use self-level concrete to level it? Thank you
Send me pictures on Facebook page, I have a look on it. Thanks!
@@MrYoucandoityourself Thank you.
Could I do this over Parquet wood flooring?
I did it for floating floor installation, you have to check - if parquet is solid no any pieces movement you can , if some movement - need to fix or remove.
i have an old wooden floor , can i lay plastic over it and apply the self leveling on top?
I don't know this method. Sorry.
Cool
Is it a must to sand down any paint on the floor ? What is the name of that tool you used to remove the paint on the floor ? Thank you 👍
Hi Sharon, I used 7” angle grinder with turbo blade. Thanks for watching and commenting!
At what time do u remove the foam tape
Usually next day.
I have a tile job over OSB and need to pour a skim coat over the entire floor. "The last person put grout directly on the OSB and I gouged it taking up the old tile." I have cleaned and stripped the floor. Also screwed down and sealed everything. Today I applied Primer T over the floor but, Did Not Dilute the primer. I'm waiting till tomorrow for it to dry and pour the leveler. I'm wondering if I've messed up by not diluting the Primer T? Do you think the OSB will absorb enough undiluted primer for the leveler to stay put or will the leveler just crack and come up?
Hi Todd, you did everything right. For plywood or OSB don't need to mix primer T with water. Don't forget put anti-fracture membrane, before you install tile, or put membrane first and then leveler over. Make sense?
@@MrYoucandoityourself Yes, I wanted to skim coat first to fill the gouges. Then membrane if that's ok? I'm dealing with only a 1/8" transition into the dinningroom so I cannot build up the subfloor to high. Do you have a thin membrane you could recommend? Thank you for your quick response and informative videos.
Uncoupling Membrane 1/8 inch Thick - amzn.to/3rOW9Ih
@@MrYoucandoityourself Cannot thank you enough for your advice and timely responses!
@@toddmasters1432 Good luck with your project!
How thick is the concrete slurry
From 0 to 3/4 inch
Отличный акцент с пост-советского пространства 😊
Лондонский?
@@MrYoucandoityourself ага, с нотками Мельбурна 😊
Can this product be sanded ?
Yes, you can, have a look my last video, I explained what blade and grinder need for this type of job. Thanks!
What prep is needed for self leveler if floor has some adhesive residue from previous floor removal?
Excellent craftsmanship by the way!
Here it is - czcams.com/video/9OpVeAKLDeM/video.html
@@MrYoucandoityourself Thanks for the reply and all the helpful info. Your truly a giving person!
whats the point of sanding the floor when you are pouring a liquid compound all over it?
Hi, very good question! It's necessary make for cleaning plywood from mud and other dirt, also make floor little rough for better bonding. If you floor is clean, dust vacuum it and put primer. Thanks!
Should I be concerned with the weight of this product on the floor joist? It’s a 25x15 room, 1st floor, w/lowest spots as much as 1/2” with a triple 2x10 beam and basement jacks supporting and bearing weight across the center of the floor from below in the basement
Customer is concerned with the weight of the product, but I’ve never had issues.
Hi Eric, Where is the lover spot, on the middle or close to the walls?
For this imperfection you need 12-15 bags of self leveling. It's not much. Ask the owner how heavy furniture in this room should be? If you compare - it's nothing.
Also, have a look on this video - czcams.com/video/iCk6zCNjsQE/video.html
It will help you for sure!
@@MrYoucandoityourself Everything slopes to the middle of the house, which tells me the exterior wall footings and foundation are holding up well.
There are 2 basement jacks smack dab in the middle of the house with a triple 2x8 beam bearing end to end....and that’s where the absolute lowest point is the worst @ 11/16”
Should I sister jack right next to each post and stuff with shims, before I use the leveler-or just skip this step and go straight to leveling?
Thanks for the advice and best of luck to you and your business 🤙
@@erickaufman4674 Hi Eric, if you have a budget for carpenter's work, better fix this problem, if don't have money for it, use plywood to fix as much as you can, like here - czcams.com/video/UPowP3bez5A/video.html and then smooth it out with compound if need it. Thanks.
Hello, Which state are you living in ?
I am living in Vancouver, Canada.
Really good video! Sorry, what’s the name of the red material?
Primer T Mapei. Thanks for your comment!
@@MrYoucandoityourself Can I use it on hardwood and then self-leveling concrete? Where can I buy the primer t mapei?
All retailers, who sell a Mapei products. Lowe’s for example.
How long should I place it and then place the concrete?
@@jordancamejo8784 This primer dries during the hour. Easy to check - if the primer is steaky - you can put SLC.
Wonderful video. Great prep work. (90% of any job!) But please QUIT SPINNING!
Thanks for your comment. Will do.
That dust made my throat super red and painful I also had mucus drainage that was very hard to clear
Ask somebody to do it.
I never thought to do that with a diamond blade. Hmm seems so obvious to me now.
You can try.
chiki briki
Thanks for watching my videos!
Hard R-r-r-russian accent -:)
Юра, смотри видео на русском языке. Там все без акцента.
@@MrYoucandoityourself В каком штате ? Ванкувер - Портланд ?
Canada
Use a bigger roller
Bigger roller hard to wash in small place with limited water quantity. Thanks!
@@MrYoucandoityourself sure, but disposable rollers are cheep and save tons of water.
Decent video, but I couldn't even understand half of whatever he was trying to say.
Can you show me time on my video with this trouble to understand, please?
mmmyeah, we didn't build the pyramids...
I hope you like my video. Thanks!
I need cc, I'm deaf
You’re the first person who asked me about it. Sorry.
@@MrYoucandoityourself don't be sorry :)
This would be a nightmare if you had to service pipes or electrics underneath in the future
You will have to break open all that levelling
It’s not my business.
NO METAL LATH (metal sheets) USED ON TOP OF THE PLYWOOD!!!
THE INSTRUCTIONS SAYS IT IS REQUIRED TO USE IT ON TOP OF WOOD OR PLYWOOD!
ANOTHER GUY USED METAL LATH (metal metal mesh sheets) ON ANOTHER VIDEO .
Why this man didn’t use it if it is required??!!
Are you doing professional floor leveling?