This work presents a combined study of
complementary non-destructive techniques, GPR (Ground-
Penetrating Radar) and Light Detection and Ranging (LiDAR).
to analyze pathologies in a heritage building. The GPR survey
was conducted with 2.3 GHz antennas. The Terrestrial Laser
Scanner (TLS) used has a ±2 mm accuracy. LiDAR revealed a
lateral thrust of the main nave of the hermitage, and moisture
at the side wall of the altar. GPR allowed to determine the
presence of moisture inside the wall. The joint interpretation of
all the data allowed to highlight moisture as the cause of stone
degradation, thus affecting the structural integrity of the nave.
The interpretations thus obtained enables to define most
appropriate maintenance interventions.
