Abstract: The paper presents the definition of wood, its macroscopic and microscopic structure and factors
that affect the mechanical properties of this material including, among others, wood moisture content and
structural defects. In the paper, wooden buildings made of light wood-frame technology, good operating
practices that need to be followed, and also regular and proper maintenance of such structures were
characterized. Principles of examination and visual inspection of wooden members and structures were
analyzed in a very detailed and accurate manner. On the basis of inventory compiled and the examination of
the condition of wooden members and structures, the type and scope of rehabilitation is determined, the
stability and strength report, and also mycological report are produced. Then the methods of the structural
upgrading of the existing structure to increase its load bearing capacity are devised.
B I B L I O G R A F I A[1] RUDZIŃSKI L., Wood structures, repairs, strengthening, examples of calculations (in Polish). Kielce University of
Technology, Kielce, 2010.
[2] KOZAKIEWICZ P., Wood physics - theory and problems. Selected issues (in Polish). SGGW ed. III edition,
revised, Warsaw 2006.
[3] MICHNIEWICZ W., Wood structures (in Polish). Warsaw, Arkady 1958.
[4] KERNTOPF-ŚLUSARCZYK B., Wood houses - a review of the technologies (in Polish). Murator 1997, No. 1, pp.
54-65.
[5] PLESSNER H., Examples of damages to wooden structures (in Polish). Materiały Budowlane 2000, No. 5, pp. 30-
31.
[6] PLESSNER H., Some problems in calculating damaged roof structures (in Polish). Przegląd Budowlany 1984, No.
11, pp.530-533.
[7] NEUHAUS H., Wood construction (in Polish). Rzeszow, Polskie Wyd. Tech., 2004.
[8] MASLOWSKI E., SPIŻEWSKA D., Upgrading of building structures (in Polish). Warsaw, Arkady 2000.
[9] JASIEŃKO J., Engineering and adhesive connections in the repair, maintenance and upgrading of historic wooden
structures (in Polish). Wroclaw, Dolnośląskie Wydawnictwo Edukacyjne, 2003.
[10] PN-B-03150: 2000 Timber structures. Static calculations and design (in Polish).
[11] http://www.podroze.pl/polska/malopolskie/zakopane/zakopane-wille-atrakcje-noclegi-pensjonat-tatry/981/
[12] http://projektus.blogspot.com/2014/01/pomiary-stanu-drewna-rezystografem.html 
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