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Protection through construction of a wooden monument in Radomlje (Slovenia)

Pamić R., Pohleven F.

Drewno : prace naukowe, doniesienia, komunikaty

2015

vol. 58, nr 195

135--148

Biodegradation of the wood, photo-degradation of the coatings and major cracks appeared on a six-metre high oak monument built in 1960. Due to three displacements and exposure to increased moisture and pests, the monument lost its original appearance. Damage due to the fixation elements became so extensive that they threatened its load-bearing capacity. During the renovation work, the monument was subjected to original and specific constructional measures and its original appearance was restored. Restoration of the original details allowed water to flow off the monument easily, hence the wood could dry quickly. The weakened and worn parts of the wood were replaced or consolidated. Dilatation between the wood, metal and stone was stopped and further corrosion processes prevented. Restoration of the cracks prevented the entry and retention of water inside. Where this was not achievable, drainage was installed and aeration of the wood was enabled. By means of a central metal mandrel and a supporting system of adjustable bolts, the bearing capacity was improved and, in the event of possible displacements, centring of the monument was made possible. Removing the external fixation elements contributed to the monument’s aesthetics. These innovative construction solutions may represent a model case for the future restoration of similar cultural monuments.