Whether your exterior concrete surface is a porch, patio, or a sidewalk cracks can develop with time—even if the surfaces are properly sealed. But it doesn’t take a whole lot of work to seal cracks. It’s important that you address them as soon as you can, though, because the longer they go untreated the larger and more difficult they become to repair. So here’s a five-step fix. Make sure your concrete is clean and dry and that outdoor temperatures are at least between 40 and 95 degrees. This may sound counterintuitive, but if the crack is narrow use a hammer to chisel it open to about ¼ … Continue reading...