Viking roof hinges have rotted out the RHS of the roof. I have cut minimal metal out and fixed new beams and now are about to fix in the roof repair section. What I would like to know is what is the best way to go about it. My plan was to fit to the rear roof and then spot weld the edge / lip to the beam first. Then fix the roof repair to roof and use tack welds - bit by bit cooling welds with a wet cloth. I was also going to cut up a roof repair panel and spot weld it to the roof repair giving a double skin 3 times the area of the hinge to wash out the stress and make the hinge fitting more robust. The Viking hinges pop rivet through the roof via an ally spacer into the roof beams.