Static Analysis of Selected Types of Roof Trusses Considering the Weakening of the Structural Elements

Failures of structural elements in historical roof trusses pose a significant challenge in the preservation and restoration of a cultural heritage. These trusses, traditionally constructed from wood, are exposed to various factors that contribute to their degradation and damage. The most common factors include moisture, insect activity, fungal decay, and mechanical damage caused by geometric deformations or unprofessional alterations. These defects can compromise the structural integrity of an entire roof truss construction and jeopardize the stability of the building.

The restoration and conservation of historical roof trusses require a specialized approach involving detailed diagnostics, modern technologies, and the preservation of original construction elements. This paper focuses on identifying the most common structural defects in historical roof trusses, analysing their causes, and presenting possible repair methods aligned with the protection and care principles of a heritage.