ᐅ Vinyl flooring "loose lay" or also known as "self-adhesive vinyl"

Now that we proudly own a ground slab, we are starting to consider what to put on top of it.
Because of the comfortable feel underfoot, we have decided on a vinyl floor. In recent years, so-called "loose lay" vinyl has become available.
This type has a high own weight (8000g/m² (1.65 lb/sq ft)), a special structure on the underside, and is installed wall-to-wall with joint edges. It does not require an expansion gap along the walls because it only expands by a very small amount in the range of 0.XX mm (0.00X inches). Additionally, no extra underlay or vapor barrier is necessary beneath it.

In our case, about 100m² (1076 sq ft) will be covered continuously without expansion joints, and the flooring should be consistent throughout.

The following rooms will be fitted with this flooring:
- Entrance area
- Hallway
- Living room
- Dining area
- Kitchen
- Bedroom
- Children’s room
- Hobby room

So far, we haven’t found much information, but the easy installation and simple replacement of damaged sections are very appealing.

Has anyone had experience with this?
If so, I am interested in your reports.

Currently, we favor the objectflor SimpLay Design Vinyl, but we are also open to other manufacturers and welcome recommendations.

There are already several threads on this topic.

The manufacturer states that little to no adhesive is needed, depending on the installation method and on most hard floor surfaces. However, the wording is vague and doesn’t provide any concrete information. I couldn’t quickly find details about the type of substrate material used.

The planks have firm edges with a groove, so I assume a simple floating installation, similar to other manufacturers. The price is in the reasonable mid-range.

I need to research the substrate material more thoroughly, as this is particularly important for underfloor heating systems.

Installing without an expansion gap will certainly not be possible, depending on the room size, of course.

I have now read through the datasheets. However, they only mention the use as an underlayment.
Suitable substrates listed are only other finished floor coverings, such as fully glued PVC, linoleum, parquet, tiles, etc.
Direct installation on screed is not mentioned.

An expansion joint is actually only required for room dimensions starting at 10 m x 10 m (33 ft x 33 ft), with a maximum gap of 2 mm (0.08 inches) to walls and doors to be maintained.

So far, it reads to me like a refurbishment floor.

We have already looked at it and even held it in our hands; it makes a solid impression.
My only concern is that in many cases, sellers tell you what you want to hear, and the actual material properties are overlooked.
According to them, you only need to
- sweep
- vacuum
the screed, and then you can install flooring without any additional insulation or similar.
So the question is if anyone already has experience with it.

We’ll see; maybe a few more people will chime in.

Thanks in advance for your answers.

In my opinion, when installing as a floating floor over a screed, a PE foil and appropriate impact sound insulation are necessary.

The datasheet does not even remotely mention installation over screed. I would explicitly ask the supplier about this again and request written confirmation from them.
We are currently replacing our vinyl flooring completely after only 6 months due to issues with the materials used.

We are also considering Looselay Vinyl from objectflor. However, even the flooring installer has no experience with it. Have you installed it recently, and what are your experiences with it? A quick response would be great.