The problem with skylights leaking in AK is that people up here love to have flat/low pitch roofs with poor insulating qualities. The snow sits on it, melts, and the weight of the ice/snow pushes the water through any crack and crevice, no matter how well sealed.
I live in Anchorage, and I see new houses going up that have no wind barrier, no vapor barrier, and 1/2" gaps in the T111 siding that are filled in with caulk. All this for $325k. You start throwing in other things like no drip edge on the roof, 2x4 walls, and inadequate ventilation, and then people act all surprised when their house starts falling apart in 10 years. "Oh, that's just the way it is up here, because our weather is so extreme!" has been told to me DOZENS of times.
