When ships were no longer seaworthy, they were most often sold for their lumber - and oft times, the hulls were simply turned upside down and, voila, the roof.
This photo is a barn roof in England, thought to be from a ship found 'not sea worthy' in 1624.
this roof is thought to be the hull of that ship - the Mayflower...which, at the time, was not 'famous', just a worn out ship. ;o) 
The great crossbeam even has a crack in it - which coincides with the crack in the beam of the Mayflower during a hurricane that threatened to send them to the bottom of the sea, halfway across the Atlantic.
They were able to shore it up with 'a grew screw' someone had on board.
I suspicion that may have been from Elder Wm Brewster's printing press he had in Holland - where he, clandestinely, printed 'seditious' tracks against the crown, including the infamous "Perth Assembly" - that had the crown put a reward on his head and had their Pinkerton detectives crisscrossing England and Holland in pursuit of him.
He had to be smuggled into England and aboard the Mayflower for what, many decades later, became "history."