Abstract: A method for construction of self supporting buildings of the type comprising longitudinally arcuate interlocking panels having a joint of the type described in U.S. Pat. No. 4,759,159 wherein the respective male and female ribs of adjacent panels are overlaid and then progressively interlocked along the edges of the joint by a sliding compression tool. The compression tool has slides or rollers which engage outwardly opposing exposed surfaces of respective male and female ribs comprising the joint and permits resilient deformation of the male and female ribs to achieve interlocking.

Abstract: A building panel or arcuate longitudinal form having a pair of upstanding flanges at its opposite longitudinal sides, a male rib supported by one flange and a female rib supported by the other flange, both the male and female rib extending wholly to one side of their supporting flanges, the male rib being engageable with the female rib of an adjacent panel to form an arcuate self supporting roof section for a building.