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  1. 1 Ochrona Zabytków

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  1. 1 Gazda R. W.

  2. 1 Potocka A. D.

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  1. 1 2001

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Destrukcyjny wpływ wilgoci na stan zachowania obiektów zabytkowych na przykładzie dworu Mokronowskich w Jordanowicach

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Potocka A. D., Gazda R. W.
Ochrona Zabytków
|
2001
|
issue 4
385-392
EN
The devastation of historical objects is caused by numerous factors. The gravest threat posed for even the best preserved objects is concealed in moisture. Publications describing the mechanisms of damage caused by dampness are extremely extensive, and their discussion exceeds the space provided by this article. To put it in most general terms, moisture causes physico-chemical, mechanical and biological damage. The prime reason for the dampness of building walls is gro u n d -, ra in - and condensation water. The destruction of such an object follows a rapid course, but drying it calls for a long period of time. This is the reason why at the outset of conservation it is necessary to establish the degree of the dampness of the historical building, measure the relative moisture of the air, the dampness and temperature of the wall surfaces, and the heat conduction of the outer walls. Only the determination and identification of the causes of dampness make it possible to formulate a suitable conservation programme and its effective application. An initial analysis and examination of the titular object found that the main reasons for dampness are: 1. the unsuitable drainage of rainwater, 2. the absence of suitable drain pipes on the building and tin roof, 3. the absence of horizontal insulation, 4. the absence of vertical insulation or its inappropriate execution, 5. incorrectly conducted repair. The encroaching threat can be prevented by vertical horizontal insulation of the outer walls, draining the area around the building, including water from the collective sump, and vertical insulation of the inner walls with the polychrome by J. B. Plersch. A suitable selection of the insulation method and its rapid realisation are decisive for halting the progressing destruction of the object in question. Vertical insulation, employing the injection-coating method in the Aida-Kiesol, Remmers system, was conducted on the outer wall. Moisture measurements carried out in the autumn of 2001 confirmed the effectiveness of this particular method. Undoubtedly, such insulation should be applied in the whole object; together with roof repair, this approach will guarantee proper p ro tection against dampness.
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