Drafty windows can be a pain, here are a few tips for finding and fixing air leaks in your home’s windows. The first step is to identify the source of any moisture or drafts coming from inside. Which you can do by inspecting them for signs that might be present outside as well as like water stains on sills below where they meet roofing tarps during heavy rainstorms (a telltale sign). If there aren’t too many symptoms at this point then look further than what may seem obvious: maybe it’ll only take one small gap before all sorts become visible around edges near doors leading into rooms.