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Loft windows


Ideal for the renovation of historic buildings, the windows, which imitate steel joinery, are manufactured based on Aluprof’s MB-Ferroline aluminum profile system. In addition to the stylized form, they ensure that the technical performance of the structure is very good.

The loft window system makes it possible to make glazing of various types – inward opening (casement, tilt, tilt and turn), outward opening windows (tilt or turn) and fixed windows, which, in addition to excellent thermal insulation, are also characterized by very good sound insulation, water and air tightness and high durability.

The renovation frames available in the system allow the installation of new woodwork without the need to remove the old frames, and therefore without the risk of possible damage to the masonry around the windows. The visible width of the aluminum profiles is adjusted in such a way that it does not cause big differences in the external appearance between old and new windows.


Air permeability

Class 4; EN: 12207


E1350 class; EN: 12208

Resistance to wind load

Up to class C5; EN: 12210

Anti-theft class


Frame depth

77-110 mm

Wing depth

86-93,5 mm

Glazing thickness of the window frame / sash

13,5-61,5 mm

Thermal insulation

Uf from 1.5 W/m2K


Unique and unlimited design options provided by the option of painting in any RAL colour.



window accessories


Handles are an integral part of the windows, which affects the aesthetics and character. See a wide range of handles in modern and traditional design and select their functionality to suit your needs.


Glazing occupies the largest surface area in windows, so their proper choice is crucial to maintaining the thermal and acoustic comfort of a building. See what types of glass and glazing packages we offer.


You will also find mosquito nets that protect you from insects, mosquitoes and flies, while providing free ventilation and a view of your surroundings Learn about their types and see which will work best for your windows.


Fittings that allow the sashes to be opened, tilted or slid are responsible for the functionality and security of windows and doors. You can be sure that all of them come from proven and reputable suppliers and will work smoothly for many years.


Proper airflow is a healthy climate in your home. With ventilators installed in the windows, you don’t have to worry about ventilation. See how ventilators will make your home always have fresh air.

window sills

Both exterior and interior-mounted window sills can be made in many different material and color options. Find out which ones will fit your windows best.

Comprehensive service

Installation of windows and doors

Proper installation is a key issue for windows to perform their function well, that is, to be a tight and stable partition without thermal bridges through which precious energy escapes. Our expert teams offer installation based on various technologies and standards. Check which ones will meet your expectations.

See how we manufacture your windows

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