Dear James: I am having a new house built in an area where others have had many cracks in the concrete. What should our builder pay attention to in order to avoid this in our house? —Logan G. Dear Logan: It is not unusual to have some cracks form in concrete. It takes time for concrete to totally cure to full strength, and some cracking can occur months after it was poured. Assuming it was poured properly, these types of smaller cracks usually stop forming after a few years. Most of these cracks are not an issue for the structure of the house. The most common location of the cracks is along sharp inside corners and around window openings. These are easy to repair with a polymer fill compound. The next most common location is along long areas of slabs and floors, and you will need a professional to seal …