Strong winds blowing roof off a building.
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Previously:
https://www.homemadetools.net/forum/...538#post117419
https://www.homemadetools.net/forum/...679#post123655
https://www.homemadetools.net/forum/...722#post128919
https://www.homemadetools.net/forum/...944#post129552
https://www.homemadetools.net/forum/...963#post125022