Poor craftsmanship of supposedly Amish built buildings.The roof seems to be the weakness of the company.
1/4" overhang at eve or less sometimes flush with the eve. Water wicks back to osb and will leak. Where the rake trim meets the roof sheet there is no rib under the trim and no sealant where they meet and again a roof leak. There's nothing under the roof sheets so if they sweat or screws leak osb gets wet.
I don't know where they build them but it's not a flat surface center of the building there's a big hump in the floor. The walk through doors are very poorly installed.
With a little more attention to quality and not profit margins they would have a quality product.I can provide photos of all my complaints.
Review about: Derksen Portable Buildings Garage Construction.
Reason of review: Bad quality.