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Tectrix Fins

Advanced systems for sunlight protection and control



High temperatures in the work place create discomfort and also have a negative impact on productivity. External Tectrix Fins prevent the heat build up caused by the sun's rays hitting the glazing, making high energy, expensive cooling systems unnecessary.

The application shown here allows the total screening of the front façade of the building. This type of screening allows considerable savings in internal climate control costs as the whole façade is shaded.


As an adjustable louvre brise soleil - can be linked to a sun sensor, timer or computer



All the materials of Tectrix Fins have been specifically chosen for external use with the Fins able to withstand atmospheric changes and corrosive elecments such as smoke, smog, salt etc. Every component, (nylon plugs, stainless steel pins, manual and electric controls) has been tried and tested, in use, for over 25 years.


Tectrix Fins can be installed in a fixed position or operated in many ways from manual to electric, remote or computer linked to building management systems. Sun sensors and timers are also available.

As an externally mounted vertical shading system


As an internal or external rooflight shading system.



Tectrix Fins can be mounted on almost any aspect of the building façade, either vertically or horizontally, within the reveal or mounted on brackets.




Standard colours - white, silver

Special colours - bronze, green, black, copper, dark brown, yellow, grey.

Side channels:

Standard colours - RAL 7035 silver

Special colours - all RAL colours.


Standard colours - anodised silver

Special colours - anodised black, anodised bronze, anodised dark brown.

End caps:

Standard colours - black nylon

Special colours - light grey, white.


Hallmark Trojan External Venetian Blinds

For many years, European architects have specified external Venetian blinds because experience has shown it to be the most efficient and flexible means of solar control. Because they are fitted externally, heat transfer to the interior is minimal, resulting in the lowest shading coefficient of any window treatment. They also control light diffusion and eliminate glare without impeding ventilation.

Trojan external Venetian blinds have 80mm-wide slats with roll-formed edges for maximum rigidity. They offer complete operational flexibility; they can be raised in winter or on overcast days and the tilt angle can be adjusted to admit natural daylight as required. This is accomplished by remote control from the interior, either manually or by motorised devices.

Even on sunny days there is the likelihood of moderate to strong winds. These blinds embody many special features to resist wind attack. The design includes several built-in safety devices to prevent damage during operation. Consequently, Trojan blinds are ideal for use with control systems incorporating solar-cell actuators, time clocks and anemometer override controls. They are also suitable for interfacing with computer-based building management systems



Blinds with slats opening at a 450 angle before clear insulating glass will transmit only 10% radiation, allowing a reduction, or even the elimination, of expensive air-conditioning equipment.


Daylight distribution to the interior may be improved by adjusting the slat angle of the Trojan blind. This enables expensive artificial lighting costs to be reduced by redistributing high levels of light intensity close to the window to the darker recesses of the room. Another benefit is that eye fatigue caused by light glare and repeated vision adjustment from the brighter to darker areas of the room is avoided.





The Sunshield non-retractable louvre blind system has been designed for internal or external installation and is particularly suitable for horizontal, sloping or unusually-shaped glazed areas. The fully-adjustable louvres, made from aluminium or wood, reduce solar heat gain, control glare, allow outward vision yet at the same time ensure best use of natural light. Extruded sections in mill finish, polyester powder coatings or anodised aluminium, plus nylon components, make Sunshield a cost-effective, low-maintenance sunshading method. Blade widths are from 50mm, 80mm and 88mm. They are supplied in a wide range of colours and can be used not only for conservatories and other domestic installations, but also for many commercial applications such as atria in large public buildings. By adding Autoshade controls, Sunshield may be used in museums, art galleries, libraries, botanical gardens and other locations where precise light level control is important.


In many large botanical garden applications, there is a need not only to control light, but also temperature and humidity. The Sunshield 80 and 88 systems enable a number of different environments, such as deserts, tropical or temperate zones to be accurately monitored and controlled in one building.

An extra benefit is the creation of a trapped air layer when the blinds are closed, which helps to reduce overnight heat loss in cold weather.