Historic roof trusses are a very important but little recognised subject. However, they are important elements of a building's structure that affect the historic value of a building and document the history not only of the monument itself, but also of the development of the craft.

Among the ongoing research projects, the study entitled "Historical truss constructions" stands out for its substance. "Historical construction of roof trusses and towers of the Latin Archcathedral in Lviv". It is a pioneering study by Maciej Warchol, M.A., which introduces the little-recognised issue of historic roof trusses into the field of research - an issue of great importance for conservation reasons.

The project encompasses research into the roof trusses of the Cathedral Basilica of the Assumption of the Blessed Virgin Mary in Lviv (the so-called Latin Cathedral) on the main body and the presbytery, the helmet of the bell tower and the historic structures over selected chapels and the sacristy. Even today, the trusses are often treated as secondary elements of historical monuments, not subject to special restoration requirements. However, like the window frames, they are important testimonies to historical construction and carpentry techniques.

This is the first case, also in relation to the territory of contemporary Poland, of such comprehensive documentation and conservation analysis of a monument of this class as the Lviv Cathedral.

A book entitled 'Former carpentry constructions of the Latin Archcathedral of the Assumption of the Blessed Virgin Mary in Lviv', authored by Maciej Warchol, was published by the Polonika Institute Publishing House in 2021. We invite you to familiarise yourself with and purchase the publication - Former carpentry constructions of the Latin Archcathedral of the Assumption of the BVM in Lviv Polonika

Works carried out in 2019

In 2019, the effect of the first stage of work was the preparation of a study containing a historical-analytical and conservation description, measurement drawings, photographic documentation of the roof trusses of the Latin Cathedral.

Work carried out in 2020.

Complementary research was carried out, including dendrochronological and analytical studies, and work was undertaken to prepare a book publication in Polish and Ukrainian, so that the Ukrainian conservation community could also become familiar with it.