Buying guide for vinyl flooring for new construction

I didn't quite understand that.

Can I simply lay the Modular One on the attic floor over 35sqm continuously across the expansion joints?

What do we need to put under the Modular One? I thought we only need to use the Parador PE foil

Expansion joints are to be maintained

If you don't do it, it won't bother the screed, just pull the floor apart and press it together

There are surely special things for your material that should be used for expansion joints, ask the seller sometime

We have also laid the PE foil over the screed joints - by the way, it doesn't necessarily have to be the one from Parador; they would of course prefer that... In a well-stocked specialist store, you will certainly be able to get a suitable foil offered to you. How are the windows in the attic like? I would think carefully about simply omitting the joints. If the floor does get damaged afterwards, there is no warranty from the manufacturer. I have seen that there are also expansion joints made of cork - they are not so noticeable.

How are the windows in the attic like?

We have a skylight (facing northeast) and 2 floor-to-ceiling windows (approximately facing north)

I would think twice about simply leaving out the joints. If the floor gets damaged, there is no warranty from the manufacturer.
I have seen that there are also expansion joints made of cork - they are not so noticeable.

It would of course look much better visually if we simply laid the floor over the expansion joints.
Incorporating an expansion joint into the floor would not look quite as nice.

Does anyone have experience with simply laying over the expansion joints?