logo-120x40
                         
Thursday 27 February 2020

Microventilation

Microventilation

From our daily experience, we can conclude that explaining and cause identifying of excessive window condensation with customers is a very delicate issue. It is believed that ventilation uselessly lets air out while the price for thermal energy is constantly increasing. The truth is that opening of the ventilating aperture, i.e. opening of the window sash into the folded position is the worst way of ventilation in winter season. Air exchange is slow and the window must be open for quite a long time. Heat from the room escapes much longer than by intensive ventilation, the walls of the room cool down and fresh air in the room heats only slowly. Much more effective and economical is intensive ventilation by opening of window sash wide for 5-10 minutes. It needs to be done several times a day, especially before bedtime. Fresh drier air enters the room within a few minutes (5-10), it is heated quickly from the walls which are accumulated with heat and they haven’t cooled down, because ventilation lasted only a short time. Usually, fresh air is heated after 5-10minutes after closing the window. The flat user thus gains air rich in oxygen and makes the first and most important step to eliminate window condensation. In the majority of cases, when users of high-quality windows had pointed to ‘poor quality’ of the windows due to excessive condensation, the mode of ventilation had been changed (perfect ventilation before the bedtime) and the problem disappeared. The appropriate solution for the required air exchange can be achieved through special ventilation systems (flaps, ventilators, grilles). The solution is often offered also by the window fittings manufacturer. One of the options of the whole perimeter variable system of window fitting for open – folding windows is an additional equipment of this fitting, known under several established names, e.g. ventilation, micro-ventilation, slit ventilation or so-called the fourth position of the handle. This type of fitting is a normal part on all open – folding windows in the company NOVES, unless required differently. Higher possibility of ventilation compared to ultimate folded position, by price and function, is multi-position ventilation. Fitting components for this type of ventilation are always placed depending on the size of the window and options, either on the vertical part of the window sash on the rail or on the upper horizontal part of the sash fitting. For systems with stop or central sealing, there exists system aluplast Regel Air ®, which is mounted into the upper part between the frame and the sash, it doesn’t worsen the thermal insulating features of the windows and it is suitable for acoustic insulating the class IV to 42 dB. New among these systems is aluplast BasicAir plus ®, which is also mounted into the upper part of the windows between the frame and the sash but it is only used for the systems with the central sealing. It doesn’t worsen the thermal insulating features of windows, it works from the pressure difference 4Pa achieving acoustic insulating parameters of the class IV to 42 dB and since no manipulation with the window structure is needed, it retains its high security, supports its elegance and it has integrated protection against ingress of insect into the interior. Ventilation systems help prevent the occurrence of mold. Investment in them is 10 – 20 times lower than the potential costs associated with the redevelopment of the premises and the risk to health of its inhabitants. Ventilation should never be underestimated, because by its omission we can cause permanent damage.

References:

1. Dipl. Ing. Daniel Holler, General manager of aluplast Slovakia s.r.o.: Vetranie – pri moderných oknách nutnosť!

2. doc. Ing. Ivan Chmúrny, PhD., Stavebnícka ročenka 2004,  str. 122-124 – „Prevencia kondenzácie vodnej pary na zasklení“ Stavebná fakulta STU, Bratislava

3. Ing. Robert Žúdel, aluplast Slovakia s.r.o.: Riešenie detailu osadenia okenných konštrukcií, edícia Dom a byt, Antar, apríl 2005

NEWS - ALUPLAST BASIC AIR PLUS

News to the ventilation systems is aluplast BasicAir plus®, which is mounted to the upper area of the window, between the frame and the sash, but it is only used for the systems with the central sealing. It doesn’t worsen the thermal insulating features of windows, it works from the pressure difference 4Pa achieving acoustic insulating parameters of the class IV to 42 dB and since no manipulation with the window structure is needed, it retains its high security, supports its elegance and it has integrated protection against ingress of insect into the interior. Ventilation systems help prevent the occurrence of mold. Investment in them is 10 – 20 times lower than the potential costs associated with the redevelopment of the premises and the risk to health of its inhabitants. Ventilation should never be underestimated, because by its omission we can cause permanent damage and it is not worthy to save on the expense of your own health.

Scroll to top