collapsed floor panel broken feather fill in unevenness without disassembly

As usual, the foreman knew better that the deviation of the unevenness of the floor before laying the panels could be more than 3 mm.
After about a year in the transition between rooms, unfortunately one panel collapsed and the pen broke. I don't care to disassemble the entire floor, especially since it has already been changed once.

I was thinking of letting in some low pressure foam to fill the empty space, but as soon as I take the tube / tubing out of the drilled hole it starts flowing out ... we could put some M8-M10 screw in. Then, however, there is a risk whether I will make it in time and whether the tightness will be maintained. After screwing in, the edges of the hole will surely rise and the decorative top coating will come off. A small "hole" will turn into a big one :)

Maybe extend the hose and try to let in somehow from the side of the frame ?? But it is about 40 cm and there is no way to steer the hose itself to apply the foam in the sunken area.

Of course, I would cover the panels with foil and a large, solid, flat, thick top + with a load of 80 kg.

Do you have any other idea or comments? Thank you in advance !

cynamonik wrote:

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As usual, the foreman knew better that the deviation of the unevenness of the floor before laying the panels could be more than 3 mm.
After about a year in the transition between rooms, unfortunately one panel collapsed and the pen broke. I don't care to disassemble the entire floor, especially since it has already been changed once.

I was thinking of letting in some low pressure foam to fill the empty space, but as soon as I take the tube / tubing out of the drilled hole it starts flowing out ... we could put some M8-M10 screw in. Then, however, there is a risk whether I will make it in time and whether the tightness will be maintained. After screwing in, the edges of the hole will surely rise and the decorative top coating will come off. A small "hole" becomes a big one :)

Maybe extend the hose and try to let in somehow from the side of the frame ?? But it is about 40 cm and there is no way to steer the hose itself to apply the foam in the sunken area.

Of course, I would cover the panels with foil and a large, solid, flat, thick top + with a load of 80 kg.

Do you have any other idea or comments? Thank you in advance !

As you wrote, fill the foam with low pressure, keep the panels to prevent bulging. Cleaning with acetone foam or a special remover. It is a pity that there are no expansion joints in the transition to the door sill. Perhaps you will have to do them because I do not know if the panels will not come apart in narrow places. Broken feathers are a very big problem. The panels are mobile, high stress, large surfaces.

Honestly, nothing but dismantling the panels I can't think of.
You can try with this foam as a last resort, but in my opinion the panels will work on this foam when loaded, the foam will deteriorate, turn into dust and the situation will repeat itself. I find the foam too delicate for such dynamic loads.

You can try on epoxy glue or another two-component adhesive applied under the panels using a syringe with a tube. For easier application, choose a thin, slow-setting adhesive. In stores, I saw ready-made two-component adhesives with a mixing nozzle, e.g. https://centrumklejow.bazarek.pl/opis/575085/...epoksydowa-czarna-strzykawka-25-ml-bez-dyszy- mixajacej-.html

Make a sub-floor and glue the panel.
This is where you have a heavy load.

szybki105 wrote:

You can try on epoxy glue or another two-component adhesive applied under the panels using a syringe with a tube. For easier application, choose a thin, slow-setting adhesive. In stores, I saw ready-made two-component adhesives with a mixing nozzle, e.g. https://centrumklejow.bazarek.pl/opis/575085/...epoksydowa-czarna-strzykawka-25-ml-bez-dyszy- mixajacej-.html

You stick rigidly to the ground in this place of the fluff, anywhere in another panel feather. There are high stresses on such a large surface placed only on the foam. The float is unstretched and contracted. After that, expansion joints are made to reduce this possibility to a minimum. makes 70 sq m with divisions, no wonder that in some time the feather and the latch will break, crack, break. One flaw is enough when assembling and you have a problem. Such floors are laid on special foams with holes with additional adhesive for floor panels that never it will age and it will carry loads both vertical and horizontal.