renew torn silicone joints

Hello,

due to settlements at several points in the house, the silicone joints have cracked.
Yesterday I test-wise started on the first section in the utility room and completely removed and redid the silicone joint on one wall. However, the removal was somehow more complicated than previously assumed, because especially the vertical side could not be properly cut off with the joint cutter, but was pushed into the cavity between the tile and the tile baseboard. So I had to remove not only the silicone in the joint but also from the cavity behind it. The silicone adheres very strongly to the underside of the tile baseboard and the wall behind it. In some places, it only came off piece by piece with a pointed plier. When I think about how long I needed for the 3m wall and scale that up to the length of the joints in the house, then I would need days for it. That can't be right somehow. Are there any other possibilities? Does a multifunction tool with a segment saw or scraper work better than such a joint cutter?
Has anyone ever tried applying a layer of silicone with a larger joint triangle over the old silicone joint?

Does a multifunction tool with a segment saw or scraper work better than a joint cutter?

Yes, once you’re used to handling it.

Has anyone tried to apply a layer of silicone with a larger joint triangle over the old silicone joint?

I have – not good, because it will catch up with you eventually.

I - not good, because it will catch up with you eventually.

That would of course be stupid.

That would of course be stupid.

Sorry - I was a bit curt just now because I was about to attend an appointment. By "catch up" I mean that you postpone the laborious removal of the silicone to a later time, when you use more silicone, instead of removing everything now. The joints will always "move" and, accordingly, will always need to be renewed from time to time. "Patching" with silicone also works if small detachments are visible; with continuous cracks, I would refrain from it... precisely because the joint moves. I have removed old silicone, for example, with these round carpet knives; works wonderfully.

Sorry - was a bit curt just now because I was about to go to an appointment.

No problem... I know that.

By "catching up" I mean that you postpone the elaborate removal of the silicone to a later time, when you use more silicone, instead of removing everything now. The joints will always "move" and therefore will always have to be renewed from time to time.

I thought the big cracks mainly occur in the first year due to settling. If it were every year, it would be all the more worse if I had to remove all the silicone from the cavity each time. The first cartridge was empty after about 1.5 meters.

I removed old silicone, for example, with these round carpet knives; works perfectly.

I held the knife in my hands yesterday. I first have to see where the blades are.

I thought the large cracks mainly occur in the first year due to settling.

Correct; after that, the joints continue to move due to the change between cold and warm seasons. However, you do not need to renew them every year. The second time perhaps after 5 years, the third time after 9 years. It will never completely stop. Not least because you will surely adapt the flooring to the respective zeitgeist.