Best way to level floors throughout ground floor

[Rojomateus]

Hi all,

I am considering laying LVT throughout the ground floor of my house. Approx 75sq ms. Plumber has just finished filling in the numerous trenches dug in the course of replumbing much of my home. He commented that there seemed to be various levels from room to room and the hall. From removing kitchen and bathroom tiles I was aware that I likely needed some self levelling to make a smooth surface (and level) these areas due to residue from tiles etc. The filled in trenches are also a little "rough" in places and where I installed new french doors (replacing windows) is also a little rough. Not sure how much the variation is within rooms and between rooms. Have done some self levelling before but nothing on this scale. Seeking some advice on how to go about this..... how to find the highest point and lowest point (I presume) and work out exactly what I need..... beginning to wonder if self levelling might not be the best option? Someone local recommended to me this product - Mapei Ultraplan 3240 Self levelling compound from Screwfix as it does go upto 40mm - Also how much roughness of ground will the LVT (built in underlay) cope with? Time is important but obviously also cost....... I could hire a concrete floor sander to get rid of some of the roughness in the bathroom kitchen?

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[johnny2007]

If you have the funds, call the professionals in.
I did on many occasions and never regretted it.
Levelling a large area is not a DIY job unfortunately, that's why there are companies specialised in just this.

 

[crazydaze]

This sounds like a project a little too far as the floor needs moisture testing and then the screed levels need looking at closely to understand how deep the levelling needs to be and what primers to use and how to manipulate and build up as and if required.

The LVT will only be as good as the prep, it’s critical.

Absolutely avoid click LVT.

Get a professional floor layer to look at the areas that is well trained in subfloor prep, NOT a builder.

 

[dazlight]

Also you need a clean sub floor if using a water mix smoothing compound. No contamination of old adhesive , paint etc. Also if older then 1980 you will probably need a liquid Dpm.

 

[gauldicus]

Hi all,

I am considering laying LVT throughout the ground floor of my house. Approx 75sq ms. Plumber has just finished filling in the numerous trenches dug in the course of replumbing much of my home. He commented that there seemed to be various levels from room to room and the hall. From removing kitchen and bathroom tiles I was aware that I likely needed some self levelling to make a smooth surface (and level) these areas due to residue from tiles etc. The filled in trenches are also a little "rough" in places and where I installed new french doors (replacing windows) is also a little rough. Not sure how much the variation is within rooms and between rooms. Have done some self levelling before but nothing on this scale. Seeking some advice on how to go about this..... how to find the highest point and lowest point (I presume) and work out exactly what I need..... beginning to wonder if self levelling might not be the best option? Someone local recommended to me this product - Mapei Ultraplan 3240 Self levelling compound from Screwfix as it does go upto 40mm - Also how much roughness of ground will the LVT (built in underlay) cope with? Time is important but obviously also cost....... I could hire a concrete floor sander to get rid of some of the roughness in the bathroom kitchen?

​

Doing 75sq m is a massive jump from a small DIY job. Honestly, if you have a lot of rough spots and variations between rooms, hiring a concrete floor sander first will save you a fortune on self-leveling compound. LVT needs a completely flat subfloor, or you'll feel every single imperfection through the built-in underlay.