Features of ArboDuo 99 wooden-aluminum windows and balconies
ArboDuo 99 wood-aluminum joinery is a system of the highest technical level. The combination of two materials saves energy and also ensures safety. On the external side, the aluminium coating provides protection against the influence of atmospheric conditions. On the inside, however, the warm, living wood provides protection against heat loss. Currently manufactured wooden windows are not only characterised by very good technical parameters, but also exceptional durability. The use of this material helps to create a pleasant, homely atmosphere. Aluminium, on the other hand, is maintenance-free, i.e. it requires no maintenance. In addition, it is distinguished by its stability and lightness. ArboDuo 99 wood-aluminum joinery is the perfect solution for wood lovers who want to avoid the necessary maintenance.
Variants of ArboDuo 99 wood-aluminum joinery
Wooden-aluminum windows and balcony doors ArboDuo 99 from Sarna Windows are available in three product lines – Classic, and the optional Modern and Art.



The difference between the available options is the appearance of the glazing bead, allowing you to achieve your preferred interior design style.

Thicknesses of frames and sashes
In the case of ArboDuo 99 wooden-aluminum windows and balcony doors, the thickness of the sash together with the aluminum cladding is 99 mm. The graphic below shows a section of the joinery from the Modern line.

Types of aluminum cladding and ArboDuo 99 wooden profiles
ArboDuo 99 windows and balcony doors are available in two aluminum cladding options: standard, with 52mm thick glazing, and the flush-fitting ArboDuo 99FB cladding with 60mm thick glazing. Both options are shown in the photos below.


ArboDuo 99 wood and cladding colors
The Sarna Windows range includes numerous wood types, as well as wood colors. Each of the offered types of raw material has different properties – parameters and appearance. Combined with the virtually unlimited possibilities for lacquering the aluminium cladding, this makes it possible to create a joinery that fully meets the customer’s preferences. The combination of anthracite aluminum and solid pine varnished in walnut color has been breaking popularity records recently.
Standard equipment of ArboDuo 99 wood-aluminum windows
The standard equipment of ArboDuo 99 wood-aluminum structures determines not only the functionality of the joinery, but also its appearance. Due to the fact that windows of this type are classified as luxury goods, every element used in their production process must be made with the greatest care. In addition, it should have very good technical parameters. Every structure from Sarna Windows is equipped with high-quality components, appropriately selected depending on the type of wood and the chosen color variant. As standard, the wood-aluminium windows are equipped with:
Siegenia TITAN AF – comfortable hardware
The quality of the fittings installed in ArboDuo 99 wood-aluminum windows largely influences the length of time the joinery functions properly. In addition, the components used determine the comfort of use of wooden structures. Their impact on the safety of the people in the room is not insignificant. The right choice of hardware components guarantees greater protection against burglary. It should also not be forgotten that these components affect the amount of energy needed to heat the interior and thus the costs incurred. The wooden-aluminum joinery ArboDuo 99 produced by Sarna Windows is equipped with Siegenia TITAN AF fittings. They ensure comfort during use of the structure and safety. To increase the level of protection of your home against unwanted intrusion, you can opt for one of the optional security packages (RC1 or RC2).

ArboDuo 99 wooden-aluminum balconies – threshold variants
The ArboDuo 99 wooden-aluminum balcony doors are offered in two options. Apart from the traditional solution (with a wooden frame), balcony sashes are also available with an aluminium threshold. This type of construction will be perfect as an exit to the terrace from the house. In order to increase the comfort of the joinery, it is worth opting for a warm threshold. The graphics below show exemplary threshold options (Modern line, profile thickness 80 mm). The visible variants are: a standard wooden frame and a warm aluminum threshold.


Standard wooden frame
Warm aluminum threshold
















