|The blast of difference between the indoor and outdoor temperature, which effects the roofs during summer but mainly during the winter, must be handled good designed and then good realized roof. The design of composition and construction of the roof is from technical point of view affected e.g. by the bevel of the roof, by termoisolation and hydroisolation properties of the layers and of the whole construction. Especially important are the release of heat and steam, the order of layers in construction, and particularly the temperature and partial pressure of the heat and steam in the environment; and the effectiveness of roof ventilations.
The basic function of ventilating airspace between the termoisolation and safety foil is to lead the moisture off from the fibre of roof coat. The fluctuating air takes with the moisture held in termoisolation and leads it off out of the roof construction.
By latterly we have been using only passive ways of ventilation - ridge ventilating girdles, ventilating tiles, little shafts etc. Lomanco manufactures the program of active ventilation by the means of ventilation turbine. One Lomanco ventilation turbine can replace several passive ventilating components of the roof coat. Ventilation by the means of ventilation turbine Lomanco ensures by its active motion even wash down of the roof coat, which reduces the temperature of the coat during the summer and prevents the damage by agglomeration, bulge, pluck down etc. During the winter the fluent air wash down of roof coat ensures its even temperature and prevents the coat from creation of ice dams what means uneven extreme loading of the roof by ice and snow. During both seasons it assures fluent moisture exhaust from the roof coat and this way it prevents the creation of putrescence and mildew, which shorten the persistence of the roof.