As a former Insurance Adjuster I have seen and paid for a lot of different buildings with wind damage. Most of the steel back yard sheds on a wood platform when a wind came through were rolled up to scrap when buildings with proper post in the ground stood well. Same with the "Portable" structures that were just sitting there. Lot depends on which direction the wind comes from, the strong gust, etc. in relation to where the buildings is sitting, which way it is turned, etc. The vast majority of the time any building with post in the ground would loose some tin when the one attempted to be held down by anchors, etc. or relied on weight didn't survive.
