My roof is fairly new, but I have a shingle that seems to have slightly curved upwards. It was kinda dented so think the dented piece was holding it and now that I removed the broken piece (very small) it still curls due to having been that way for a while.
What is the best way to fix this, can I just nail it down with a roofing nail, or is that a bad idea? I'm just afraid the wind might pick it up and cause more damage. The weight of the snow might fix it though, so maybe I don't even have to do anything?