Hey do-it-yourselfer,
Some flaws are not self evident. Our neighbor, long gone, fabricated a back door patio and put a slanted roof above. Three slender columns, at outside corners and middle, resting on concrete patio.
One fine night a westerly (wolf to pig?) lifted the roof upward, pivoting it about attachment to house, to a more stable location on top of the house roof.
Gravity may be strong, but ground bolts have a purpose.
Don
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