I recently pulled up the tiles on my kitchen floor, underneath was concrete as expected, but when i removed the rotten skirting boards i discovered there is a 1-3 cm gap between the floor and the wall that seems to be filled with black soil. I dug down 2 inches and it was still soil.
How or what should i do about this gap
Should i just fill with concrete :?:
is this gap the cause of the damp in my kitchen :?: