I am trying to retype the rooms on the 1st floor, and I wanted to recover the original floor hidden under a floating floor and especially a RAGREAGE (between 2 and 4 mm).
The house is over 100 years old so the floor has moved slightly (it's normal with time) the patching was cracked in places and the ground was forming waves!
Good first of all courage. You have to get on all fours! Take a carpenter's hammer (one face square, the other a breakdown). Here the principle is to blow the smoothing by tapping on it. You have to go little by little. In some places even whole plates will leave themselves. Be careful, the thicker the patch is, the easier it is to remove! In addition, do not hit like a deaf person, you risk damaging the ground!
Once you have removed most of the patch you may still have a layer of cement on some slats at some point. If and only if it is very fine leave them, they will leave otherwise.
Then you have to rent (KILOUTOU) two machines: - sander parquet (40 euros approximately) - sander parquet border (20 euros).
Use the floor sander to do the rough work while following the direction of the wooden boards. work initially with the larger grain or thin layers of cement will be more difficult to remove. In addition, if your floor is like mine and it "gondola" the floor sander will not remove all.
Then use the rider. It will allow you to make room edges as its name suggests but also all the places where the sander could pass.
For my part I spent each lath at the border to completely strip the floor. In addition I was able to flatten the soil in an optimum way!
Then iron the entire floor to the floor sander with finer grains.
Here is your floor is stripped and you have normally finished your patch.
You just have to varnish, vitrify, dye...Suggest a tip for this theme