ABSTRACT
Sources are silent about the roof in the 16th century, but as early as 1607 and later on in 1617 its condition had become precarious, and the Greek community was allowed to make some substitutions of rotten beams. The considerable stiffness of the whole roof, already guaranteed by the great amount of nailed connections among its various components, is also increased by the nailed connections between wooden lacings and truss ends. As the interventions could be carried out during the good season. Therefore, externally, the scaffolding coming out of the windows was stopped at the level of the eaves to allow specialized personnel to remove the existing lead sheets, restore the old wooden plank and proceed with the laying of the new roofing. The dowels were fixed to sound wood, and the cut was made thus to have a straight halved joint.
