Questions tagged [self-leveling-concrete]

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31 views

Peel and stick vinyl on existing tile - how to best level the tile floor for installation?

I knew installing peel and stick vinyl planks on uneven surfaces was a bad idea, but I decided to go ahead anyway (big mistake). It looks a lot worse than I originally expected, as the bulge is very ...
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1answer
80 views

Best way to correct one inch dip in middle of second floor master?

We’re installing hardwood flooring in our second floor master bedroom. House was built in 1993. When we pulled off the carpet we realized the floor dips in the middle. The room is 18 ft (north-south) ...
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18 views

Can I apply self leveler primer over painted(primer) wood subfloor

The instructions say the wood needs to be bare wood for all the self leveling compounds like Henry/cbp/mapei but there are also plenty of videos that show it being applied to various levels of clean ...
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1answer
97 views

tiling a floor that is not flat

I want to tile a concrete floor that has 1950s tile already installed on part of it. The problem is, one edge is out of flat with a slope change of almost 1" in the last 2 feet. Other than that ...
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1answer
99 views

Should I attempt to level my basement slab before installing vinyl plank flooring?

I am getting my basement bathroom finished. We found the concrete floor is not 100% level during tub installation. My plumber used mortar under the tub to level the tub. Please look at the gap between ...
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31 views

Fast set concrete or self leveling concrete for the mounds under the shower base?

This is a follow up for this question Do I still need concrete mounds under my shower if the floor is perfectly level (I poured self leveling cement) The manufacturer instructions say "mounds of ...
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1answer
99 views

Can I level basement floor with cement board and self-leveling cement?

I have about a 1" height difference on my concrete basement floor. My understanding this was for drainage in case of flooding. I have a wall in the way of where anything could potentially drain ...
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30 views

How do I level a hardwood floor with minimal damage?

I'd like to soundproof my living room floor in order to minimize impact from footfall and airborne sound transmission from a piano. My general plan is to install soundproofing mats on top of the ...
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1answer
69 views

Assume the underlaying concrete is stable and solid, can you pour self leveling concrete and leave it like that for walking and as a garage floor?

Assume the underlaying concrete is stable and solid, can you pour self leveling concrete and leave it like that for walking and as a garage floor ?
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57 views

How can I flatten a hardwood floor in preparation for new flooring over it?

I have a second floor with T/G hardwood flooring that is in very bad shape. I have decided the easiest solution for me is to float new engineered hardwood over top of the old hardwood. There is no ...
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55 views

perimeter/barrier/dam on thinset for self leveling compound

What product or methods can I use to create a perimeter/barrier/dam on thinset for self leveling compound in a doorway? I'm pouring 300sf in sections as the SLC has limited working time. Thermostrips ...
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49 views

How to level a floor that got out of level from a beam breaking underneath the house

So I tried to get pictures, but I couldn't get any that you could really see how unlevel the floors are. I want to be clear, I am a frame carpenter who is familiar with the correct terms, and I am ...
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2answers
77 views

Should you repair the entire floor before refinishing a basement or go room by room

I'm in the planning stages of a basement refinishing project. The basement has a concrete slab that is in decent shape but needs a few things: Some sizable (6"x6"x1/2") protrusions ...
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3answers
45 views

Leveling concrete for bathroom installation

I am installing a bathroom in my basement. There is a low spot in the concrete right were the base of the toilet would sit. What is the best way to level this so I don't have a rocking toilet? The ...
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0answers
1k views

What's the difference between Henry 547 UniPro and 549 Feather Finish?

I'm preparing to smooth out my 3/4 tongue-and-groove plywood subfloors for an LVP installation, using Henry products per the flooring's installation instructions and local availability. I had settled ...
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53 views

Can Liquid Backer Board be used under a floating LVP?

I'm preparing to install COREtec LVP over a 3/4 tongue-and-groove plywood sub-floor in my 1985 2nd floor condo, and there are several areas where I need to level the floor. The installation ...
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2answers
3k views

Cheapest way to level large concrete floor without losing height

I have an old building that I am converting into a living space. The slab foundation is very old and uneven in a lot of spots. I need to level it, but I can't increase the height of the floors too ...
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1answer
379 views

Subfloor repair for LVP installation

I'm preparing to install luxury vinyl plank in the living area of the second floor condo I just bought (carpet was installed previously). It's a woodframe condo with a wooden subfloor built in 1985, ...
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1answer
18 views

Filling in low area to create platform with concrete / leveling

I have some steps going off the back door of a house (from the 50's) that I'm working on and am attempting to help prepare for market / sale (USA). The steps go down to an easement which runs ...
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1answer
57 views

How to prep and level part of my garage when there is a 6" difference in hight?

Specs: Garage floor is cement 24'x32' (except where the car will park.) far side is approximately 6"lower than the other. (~1° slope) large crack running the full length. a number of smaller ...
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1answer
82 views

Enclosing an attached carport w/ concrete slab. The slab is not completely level. Pour concrete over existing floor or install wooden subfloor?

I am assuming my location may matter on this topic. We live in north Texas north of Dallas approximately an hour. We are enclosing an attached carport w/ concrete slab foundation. The slab is not ...
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0answers
125 views

Filling expansion joints before self-leveling concrete?

I am adding self-leveling concrete to my basement flooring. I have expansion joints which are currently filled with a joint compound. How would I fill in the expansion joints so that I can cover the ...
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2answers
82 views

Leveling settled concrete pad

I am looking to convert an old garage into a workspace. The total concrete area is about 20ftx22ft, and has one seam down the center. The pad on the north side of the seam is level. The pad on the ...
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25 views

What are thickness minimums and best type of concrete to fill floor dips?

I have a large room (~775 sq. ft.) with concrete floor. Prior owners had converted a garage to living space. I need to level the floor before laying laminate. For the final leveling, I'm planning ...
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24 views

Is slower hardening self leveling compound available

I have a large concrete floor (775 sq. ft.) I need to level. I did a poor attempt once 10 years ago on another floor and want to do a better job this time. It seems many products can only be worked/...
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2k views

How to level a sloping concrete slab with a 2” difference?

I know this sounds bad and I need to give some backstory to not sound off the alarms... I’m going to give the main question first and then backstory below so you know I’m not crazy. Question: We have ...
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32 views

Level Concrete slabs

We bought our house and there is a shed in the yard that was 2 sheds right next to each other. It was recently torn down (not by me) and rebuilt. It's nice to have one single space the only problem is ...
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1k views

Lay a damp proof membrane followed by a self levelling compound

I have an uneven concrete floor inside. I need to put down a damp proof membrane and self levelling compound on top of that. My questions are: Is there any reason to use a roll of DPM vs a liquid one ...
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546 views

"Floor-leveling compound" for a Kohler Tresham shower base

I have recently purchased a Kohler Tresham shower base with bench. I read the directions very carefully, and at step 4 (you can see the guide here: https://www.us.kohler.com/webassets/kpna/catalog/pdf/...
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2answers
4k views

Filling in a sunken living room to level of other floors

My sunken living room floor is concrete slab surrounded on two sides by higher concrete slabs at the level of the rest of the house. The other wall is a brick fireplace hearth. The wall opposite that ...
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2answers
66 views

Self levelling compond on an oily floor?

I've just moved in to a new house and I want to level the floor in the garage but it's covered in oil. A quick Google throws up a blog post and product by Polycote but nothing else specifically ...
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722 views

When would you use "hot mud" or setting joint compound for leveling concrete?

To my surprise (or ignorance) the bag of 'hot mud' I bought specifically says it can be used for : leveling interior above grade concrete When would this be an appropriate choice, and does it have ...
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1answer
147 views

Engineered hardwood over uneven basement subfloor?

I purchased a house 2 years ago with a partially unfinished basement but had all the supplies to finish. I am getting around to doing the flooring soon. I have nice oak engineered hardwood flooring ...
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1answer
66 views

Process and product to fix concrete slab surface issues prior to framing over them?

I have some issues with the slab that was poured for a garage, and I need to frame an interior wall over a bad area. The slab was poured with a bit too much water (5.5 slump) on a hot day in July. I ...
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2answers
1k views

Should I level my basement floor if installing a subfloor?

I'd like to install a subfloor in my basement including that dimple stuff to allow moisture to dissipate. Currently, it has sheetrock walls and trim with painted concrete flooring, but that's it. A ...
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2answers
3k views

Is it better to use thin-set or self-leveling concrete on top of a shower pan, mud-bed to improve the slope and make it smoother for final tile layer?

Issue: I am looking to improve the smoothness of my my concrete mud-bed before I lay my thin-set and tile. The mud-bed has dried, but there are some dips and divots that make it difficult for me to ...
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2answers
271 views

Laying Stone on a unlevel concrete surface

first and foremost thanks for the help :) I am in the process of redoing my porch and I have hit a road bump along the way. I am planning on laying real thick stone (as seen here) on the porch floor. ...
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1answer
3k views

protect drywall from self-leveling cement pour?

I'm finishing my home basement, and I made the mistake of installing the drywall before deciding to level the concrete floor. So I'm trying to determine whether or not I really need to protect the ...
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6answers
2k views

How to laser-level close to a surface

Many self-leveling lasers, including my Bosch GCL 2-160, have a limitation when used to level a ceiling or a floor: the horizontal laser beam often cannot get within several inches of the ceiling or ...
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1answer
388 views

self leveling layer with internal French drain

I am planning to pour a layer of self leveling sealant such as levelPro to level out my basement floor and cover / encase some possible problematic vinyl tiles. It's an older house, and I believe it ...
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2answers
1k views

Pouring self-leveling cement to a given depth [closed]

I am renovating a bathroom and installing radiant heat under a tile floor. The subfloor and cement backer board were installed without considering the finished height of the floor. What is a good way ...
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1answer
1k views

Self leveling showing popped bubbles and small chunks

I did self leveling concrete in my basement as below But some spots showing small holes, potentially from popped bubbles And some have little pieces like chunks not mixed well I plan to install ...
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2answers
4k views

Using self leveling cement in basement bathroom around drain

Should you a use self leveling product over the slope towards a drain in the concrete floor in basement bathroom? We are wanting to install luxury vinyl plank in the bathroom and most sites say to ...
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1answer
1k views

What are my options to level a concrete driveway?

I have quite an old house that was built in the 40s. During the heavy rain and winter seasons, I typically get large puddles of water in-front of my garage that seeps slowly through the weather strip. ...
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1answer
2k views

How to seal hardwood floor in preparation of self-leveling compound?

I'm planning to float laminate over my existing floor, but need to level it first. The floor area is very large, so it spans areas of the home that have differing subfloor materials: concrete, ...
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2answers
2k views

Leveling options for bumpy basement floor

I have a 125 year old townhouse with a large (700 sq ft) basement. We had waterproofing done (vapor barrier, perimeter drains, sump pumps) last year that dried everything out and made the space usable....
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1answer
147 views

How to fix chipped cement

I chipped the cement on my wall by accident. What product can I use to easily fix that? Do you think I can use Quikrete? It's going to be about 0F (or -17C) tonight. What do you think? Will the ...
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2answers
11k views

Minimum recommended thickness for self-leveling concrete topping (skim coat)

I'd like to resurface an already somewhat level but tarnished concrete floor with a self-leveling cement-based compound and to raise the floor level as little as possible; I've found compounds like ...
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0answers
834 views

How can I level a concrete floor in a basement room?

I have a room in the basement with a concrete floor that slopes 2" over 11 feet. It's finished in that it has drywall, but there is no flooring yet. I need to raise the floor to be level. The room ...
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1answer
7k views

Roll-on epoxy over self leveling concrete

Just started cleaning up my basement and trying to make some livable space for cheap. Right now we just have the concrete floor from the foundation, It is not level and it is very rocky ( Not smooth ...