Double-sized flat roofing tile with interlocking lateral margins.

摘要

1. Flat roofing tile of the double-size type, the gauge of which is divided into two parts by a central groove and which is designed for lap-joint assembly, the tile having both a double lateral interlock and a matching set of tongues and grooves arranged on the opposite faces, characterized in that one of its faces is provided with a positioning projection (S1), and on the other face a notch (CR3) or (CR4) is formed in one of the transverse tongues (L1), and the projection (S1) of one tile is intended, for positioning purposes, to interact with the notch (CR3) or (CR4) of the staggered tile placed in the row immediately above it.