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With their new range of ventilation solutions for aluminium doors and windows - Ventalis, Reynaers harnesses innovative technology to enhance ventilation in building projects

Reynaers Aluminium, leading European supplier of innovative and sustainable architectural aluminium solutions, is set to launch its first self-controlled ventilation solutions for windows and doors in February 2009. This follows an increasing demand by architects and fabricators alike for more aesthetically pleasing, yet highly efficient, ventilation systems. Reynaers has responded innovatively and swiftly, integrating the system into its existing aluminium door and window profiles

The emphasis on insulation to achieve energy efficiency in modern buildings often occurs at the cost of good ventilation. This, in turns, heightens the risk of condensation on walls and ceilings in poorly ventilated rooms. It necessitated the development of a controllable ventilation system to ensure sufficient supplies of fresh air without losing the benefits of good insulation. Reynaers’ solutions address these needs perfectly.

The theory behind controlled ventilation is to assist fresh oxygen-rich air to enter “damp rooms” (kitchen, bathroom, toilet, laundry room, etc) from “dry rooms” (living room, bedroom) via intermediary spaces such as halls and staircases. Normally airflow passes though wall grilles or gaps under doors. The air supply must be controlled to avoid over-ventilation, resulting in cold draughts, excessively dry air and energy losses. Finally the damp polluted air is discharged from “damp rooms” back into the atmosphere. With natural ventilation all of this takes place naturally due to differences in air temperature and air pressure.

ADJUSTABLE INTAKE OPENINGS FOR AIR SUPPLY AND DRAINAGE OUTLET

The Reynaers system features self-regulating elements that are installed at the top of windows or doors in the “dry rooms”. These can be built in different configurations depending on the aesthetics or the required airflow to satisfy the applicable regulations. The patented (pending) self-regulating units automatically open en close the air inlet when wind pressure increases or decreases, keeping the incoming airflow constant

The ventilation flap can be opened in 5 different positions allowing users to easily adjust ventilation to satisfy changing requirements such as increases in the number of people in a room. In any position the self-regulating units keep the airflow at the desired level.

The ventilation units are both insect repellent and rain proof.  Furthermore, insulation values similar to those of the system in use are obtained by specific insulation of the ventilation units avoiding, as such, the risk of condensation.

VERSATILITY, EASE OF INSTALLATION

One of the most attractive features of the system for fabricators will be its ease of fabrication. The ventilation units are simply placed in spaces between the ventilation profile and the window frame. The required amount of airflow will determine the number of ventilation units needed for each application. This not only makes for simple fabrication, but also for easy, hassle-free cleaning and maintenance.

Unlike the case with standard ventilation grids which could only be mounted on top of windows, Ventalis can be fixed properly on all sides due to its stronger, stable frame. This includes anchoring on top of the window. The frames can also be mounted partly behind outer walls or façade cladding for a more “hidden” appearance. Adding Ventalis does not change the way of glazing, therefore it is not necessary to use a thicker, more expensive glass pane. The fact that the ventilation profiles can be positioned in various configurations, increases versatility for fabricators and architects alike.