The life span of caulking depends on a few different factors. Urethane caulking on a building’s south face typically lasts about five years. The same caulking on the north face could last 10 years. Silicone caulking can last up to 20 years. Caulking and sealants are important to keep your building leak free. You can read this blog article to learn more about how commercial waterproofing services keep your building in tiptop shape.