Vehicle roof structure

A vehicle roof structure comprising:

• a vehicle body including an outer side panel, a body stiffener and an inner side panel;
• and
• a vehicle roof including a roof panel and a roof stiffener, a connection portion between the vehicle body and vehicle roof forms a roof ditch which extends along a longitudinal direction of the vehicle roof structure, wherein the roof ditch includes a bottom which extends laterally between the vehicle body and vehicle roof, and provided on the bottom of the roof ditch is structural welds associated only with the vehicle body and separate attachment welds only connecting the vehicle roof to the vehicle body, wherein the two separate welds located in the roof ditch allow multiple sheets of material to be applied in the roof ditch for crash regulations without the need to trim any respective component of the vehicle body and vehicle roof.