I have a 100 year old house with a room in the basement that measures 10'x20'. The floor is brick with a thin layer of cement over it. However, the cement is so old that it is crumbling. When it rains, this room floods. I installed a drain tile around the walls and ran it into a sump pit with a pump and this solved the flooding problem. However, I now want to lay new concrete over the brick and the trench that I dug along the walls. (the drain tile is laid in a bed of gravel in the trench) -How thick do I need to go with the new cement? -Is there anything special I need to do to the floor and bricks to prepare it befor laying the cement? -Do I lay the cement right over the gravel along the walls where I laid the drain tiles? Somebody told me that I need to leave air holes for the drain tile, is this true?
If there is anybody with any knowledge in this area, HELP!!!!!