Gary, Vinyl has nail slots, the nail can slide back and forth in the slot and the panels overlap, so it is made to "move". If you nail it tight, it cannot move, aka bad installation, not many know it but it actually hangs on the nails, with all the panels locked together. I have to check the wind ratings but they go up to at least 100 miles per hour, I'm pretty sure. Much of the siding that looks deformed, is actually installed wrong or it is the cheap stuff. I know many, many people at the beach that would not have anything else. I'd say 80% of the new homes have it. Unfortunately, most of the builders use the cheap stuff. With the Kynar finishes they have now, fading is much less a problem. Bottom line, use the good stuff, only cost $200 more on most houses.