Newly laid floor flexes on 3 floors and in all rooms

[para]

The plates should not be fixed but lie loose.

Then you need to inform LK that there is a mistake in their installation instructions.

 

[HEM2121]

Then you need to inform LK that there is an error in their assembly instructions.
[image]

That's not the case with Uponor. It was clearly stated in their instructions that the plates should not be fixed; the plates should be able to expand freely. It's not a matter of any significant expansion. Probably different methods for different systems, I suppose.

 

[Plupp 618974]

Then you have to inform LK that there is an error in their installation instructions.
[image]

This is for installation in gles.

 

[Almedals]

Yes, some of the floors are continuous through door openings, others are not. The worst buckling is right around door openings, but it can also be found in rooms where the floor is only in that specific room!

If you have continuous flooring in different rooms, I can imagine you have different temperatures in the various rooms depending on the position of the sun. Thus, the floors in different rooms might "move" differently and create tension, and the only thing holding the two rooms together is the board in the doorway. As for the other rooms where there is only a floor in one room, I have no idea.

 

[Plupp 275268]

Not that I think this has anything to do with your problems, but "is" it allowed to be such short pieces as the picture shows?

[image]

A floorboard must be at least 30cm long! So I wonder what kind of incompetent company installed it! And if it spans multiple rooms without a joint under the threshold, it's not uncommon for it to cause problems!

 

[Peter Petterson]

If you have flooring continuous in different rooms, I can imagine that you have different heat in the different rooms depending on where the sun is or isn't. Then it might be that the floors in the different rooms "move" differently and create tensions, and the only thing holding the two rooms together is the board in the doorway. I have no idea about the other rooms where there is only one floor in one room.

No, but we have issues across 3 levels. Even in rooms where the flooring is only in that room as well. But a good idea otherwise!

 

[Almedals]

No, but we have problems over 3 floors. Even in rooms where the floor only lies in that room. But otherwise a good idea!

Then I would like to suggest that there is something wrong with the floor because you seem to have good gaps to the wall.

 

[Peter Petterson]

Do you have more flooring left?
Put together a few square meters and see if you can spot any issues.

Have some left, Will test this tomorrow. However, these planks are straight and not in packages anymore but will give it a try.

 

[Danne213]

How far is it from wall to wall here?
Is there anything underneath that supports it?

 

[Peter Petterson]

How far is it from wall to wall here?
Is there anything underneath supporting it?

4 meters right there, Under the joists there are planks. The old joists are also still there, and the new joists are screwed/glued to the old ones to level the floors. CC60 on the joists.

 

[Dr Benz]

4 meters just there, Under the joists there are planks, The old joist is also still there and the new joist is screwed/glued to the old one to level the floors. CC60 on the joists

But do you have 4 m long and only 120 high beams? Or how high are the originals?

 

[Peter Petterson]

But do you have 4 m long and only 120 high studs? Or how high are the originals?

The original studs are 140 high.

 

[Dr Benz]

Then I say you will get deflection regardless. It's not enough… wider beams do not reduce the deflection ("reinforcement/direction with 120"). It's the height that determines it...

 

[Peter Petterson]

Then I say you will get deflection regardless. It's not enough… wider joists do not reduce the deflection ("reinforcement/direction with 120"). It's the height that determines it..

Sry the original joists are 200 and they overlap, so 1 joist doesn't take 4 m span of the original joists

 

[Dr Benz]

Sry org beams are 200 and it's overlapping so 1 beam doesn't take 4 m span of org beams

Good. 😊