Pietų Megrame - Ventilation

Modern technologies provide very good heat insulation and noise cancelling characteristics for windows. The heat inside you house does not dissipate through airtight windows, they protect you against the outside noise but at the same time they prevent optimal circulation of air between inside and outdoors.

Normally, one person requires no less than 14.4 m3/h of fresh air in their home. Thus the air inside a room where people are will need to be more or less completely replaced within 1-1.4 hours. This depends on the number of people as well as heat and humidity. Otherwise the oxygen we breathe turns to carbon dioxide. If the room is not ventilated, the excess of carbon dioxide starts to cause headaches and reduces our work efficiency. Breathing also produces water vapours. While at home, for example using the bathroom, working in the kitchen, or exercising, one person produces 4 l of water per day. House plants, aquariums, pets, and drying laundry are also a source of humidity. Excessive humidity make for a fertile medium encouraging fungal growth. Humidity also affects building structures.

This is why it is necessary not only to properly heat your home but also to ventilate it well if you want to live a healthy and comfortable life. Ventilation will help prevent formation of dew on windows, protect walls against moulding and make the air in your home healthy and pleasant to breathe.

Different air vents can be installed into windows for ventilation of your premises. Our specialists will advise you on the best ventilation solutions for you.

GECCO

Automatic ventilation system GECCO (GEalan Clima COntrol) ensures optimal air circulation in the house and prevents the mould fungus in the windows. Under normal weather conditions the open valve does not prevent the air from passing through inside but as soon as stronger wind starts to blow, the valve closes preventing draft. GECCO is fully automatic. A light metal flap rotates freely around its axis inside the device. The air passes inside through small dedicated openings cut in the window frame and casement spacer. The position of the valve depends on how strong the wind blows. A stronger flow of air closes the valve and the air doesn't pass inside. Once the wind grows weaker the valve opens up and the room is once again ventilated.

GECCO 4 is the newest GEALAN ventilation system option. It is suitable for all GEALAN window systems. GECCO 4 has built in pollen and dust filters and a protective mesh against insects as well as profiles protecting against noise and rain.

Advantages of GECCO:

optimal air circulation;
low heat dissipation values;
stable main ventilation;
automatic regulation of the ventilation process;
no draft even with the sharpest gusts of wind;
complete automation helps avoid inappropriate use;
reliable noise and heat insulation;
economy;
protection against fungal growth;
continuous air debit;
GECCO 4 has built in pollen and dust filters;
GECCO 4 has noise insulation and rain protection profiles.

Multi AIR

AIR VENTS Multi AIR 19 EPC Design for 40 and 44 mm thick glass panes

Multi AIR is suitable for all kinds of wooden, PVC, and aluminium windows and external displays where windows (or displays) are glazed with 40 or 44 mm thick glass panes.

Multi AIR provides continuous ventilation without opening of windows and has a pressure compensation valve protecting against drafts. The air flow is adjusted by a rotating cylinder with four insulation brushes which can be taken out for cleaning if necessary. Multi AIR air vents are marked by high air permeability while the attenuation valve reduces the air flow if there are high winds. This is why under low pressure differential ventilation will be effective and sufficient while during windy weather the pressure compensation valve will ensure comfort.

Installed horizontally into different window types at the of the glass pane. The vent is made of aluminium profiles (AlMgSi 0.5 according to DIN 1748) that are separated by a thermal bridge. Aluminium profiles can be anodised (F1, 15-20 ήm) or painted (60-80 ήm).

Functions:

supply of fresh air inside;
protection against rain;
protection against bugs;
wind attenuation valve.

Technical characteristics:

air permeability 20.3 dm3/s at 1 Pa pressure differential;
air permeability 108 dm3/s at 2 Pa pressure differential;
open area 21000 mm2/m;
noise absorption Dne = 26 dB (A); RqA= -1 dB (A);
the height of the glass pane is reduced by 92 mm;
maximum length of the air vent is 2500 mm.

Renson

Renson TC 60 air vent

Renson TC 60 – is a compact air vent with heat insulation. TC 60 has an invisible external profile and perforated internal profile which protects against insects and is easy to clean.

Technical characteristics

air permeability m³/h: 62.6 at 2 Pa
free air flow surface 156 cm²/m
impermeability to air/water while closed, 650 Pa
impermeability to air/water while open, 10 Pa
noise permeability while open, 28 dB (A)
noise permeability while closed, 42 dB (A)
heat insulation factor U=3.3 W/m²K
temperature factor F=0.43

Coating

20 micron E6/EV1 anodised aluminium (standard coating)
60 micron white colour powder coating (standard coating)
60 micron brown colour powder coating (standard coating)
60 micron brown/white colour powder coating (standard coating)
powder coating with more than 150 colours according to RAL (optional)
White or black end tips.

Dimensions

glass pane reduction by 60 mm
glass pane thickness of 24, 28 mm

Material

internal and external profiles of high-quality aluminium AlMgSi 0.5
heat insulation and end tips of PVC
rubber insulation spacer RENSON N 039

Vertical air vent

Modern traditional air vents are considered to be a safe and convenient means of ventilation. Although these air vents are sometimes unjustifiably viewed as an outdated solution their ventilation capabilities are so far unsurpassed. This is an effective method of ventilation.

Traditional vertical air vents encompass a larger height of the air flow which ensures reliable ventilation and maximum protection of windows against dew formation as humidity does not accumulate inside the premises. Since warm air rises and cold air descends vertical air vents are unmatched in terms of air ventilation efficiency in areas without forced ventilation. Vertical air vents become irreplaceable in winter when opening the entire window can be too cold and inconvenient in the case of snow or rain. Vertical air vents are reliable and very solid, they are equipped with protective grates against rain and break-ins as well as a mesh against bugs.

Vertical air vents are installed into windows with 3 and 6-chamber profiles.