If the crack is very large, then the quality work of a professional is needed here. I do not think that you want to repair a crack from year to year. If you want to eliminate and forget about it forever, then invite a specialized master. He has all the quality materials and tools that are needed for the job. While you are thinking about the best way to proceed, read about the types of cracks https://www.pomwaterproofing.ca/leak...walls-outside/ . Perhaps by the type of crack you will be able to determine the cause of the formation.