Does that area get high winds? I only ask cause stick and shingle are subject to wind damage as well.
I'd be tempted to put that one back together and install tie downs, at least during times you are away.
We live in fairly windy country and when it gets over 50mph bad things start to happen. FWIW, local trucking company found that at 68mph an empty trailer will blow over.
2017 Eagle HT 29.5BHOK (sold)
2017 Ford Powerstroke 6.7, Crew, 4x4 (sold)
2018 Toyota Highlander
Maggie, Old English Sheepdog