This is a 2 years old new house which has huge front concrete front porch 10 times 15 feet in size. Below the front porch is my huge cold room. Since this house was build in winter months the front porch concrete cracked in 3 different locations and is causing some minor water leaks in to my cold room. The crack is top to bottom and less than 2-3 mm.
1: Tell me the correct way to fix this (The builder resurface this porch once with some cement solution which is start to come out now.)
2: If like to put some tiles, what kind of tiles and procedure you suggest