
Energy-efficient glazing unit U41 (Uw =1.0 W/m²K with dedicated EHV-AT Thermo flashing)
Automatic air inlet
Good sound insulation Rw=35dB
For rooms with increased humidity
Keep in mind that a flashing is required for window installation.
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The new generation GREENVIEW window is designed for users who value functionality and thermal comfort year-round. The FPU-V MAX U41 AUMX model features two independent opening systems – top hung and pivot – that ensure convenient operation and free access to light and fresh air. The top hung function allows the sash to be raised to a 45° position, making it easier to look out of the window and ventilate the interior. In turn, rotating the sash through 180° enables safe cleaning of the outer pane. The handle located at the bottom of the sash allows for two micro-opening positions – ideal for everyday ventilation.
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The 44 mm thick U41 triple-glazed unit with thermoPro technology effectively protects against heat loss, maintaining optimal temperatures year-round. The Uw coefficient is 1.1 W/m²K in a standard installation and 1.0 W/m²K when using the EHV-AT Thermo flashing, reducing heating costs. In addition, sound insulation of Rw = 35 dB ensures peace and quiet, especially in noise-prone areas.
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The window is made of the highest quality pinewood, vacuum impregnated and coated with white polyurethane varnish (RAL 9003), creating a smooth, waterproof surface. It is ideal for rooms with high humidity, such as kitchens and bathrooms. The subtle white colour suits most interior designs, and the modern anthracite-coloured cladding (RAL 7016) blends harmoniously with the roofing and external elements of the building.
preSelect switch
The preSelect® switch allows you to quickly change the sash opening mode — from top hung to pivot or vice versa. It is located on the side of the frame, enabling convenient switching of the window function without the need to open it.
The top hung mode provides natural ventilation and comfortable daylighting while allowing an unobstructed view outside. The pivot function makes it easy to clean the outer pane and ensures full access to the window.

Air inlet
The automatic air inlet used in the window adjusts the amount of incoming air according to wind pressure, reducing excessive drafts and noise. This ensures effective room ventilation while maintaining quiet operation and optimal acoustic and thermal comfort. The air inlet protects the interior from excessive humidity and supports a healthy indoor microclimate.

Glazing unit U41
The 44 mm thick triple-glazed unit features two low-emission coatings, glazing cavity filled with argon and warm TGI spacer. This gives the window a very good heat transfer coefficient of Uw = 1.0 W/m²K. It provides acoustic comfort of 35 dB, effectively reducing noise and improving relaxation conditions in the attic.

External cladding
The external cladding was designed in cooperation with the Institute of Industrial Design. Its modern, minimalist form emphasises the aesthetics of the window and harmonises with the roof line. The anthracite colour (RAL 7016) fits perfectly with current architectural trends. The colour consistency of the cladding, accessories and flashings creates a harmonious, elegant set that is resistant to weather conditions.

Internal finish
Carefully selected pinewood, laminated and coated with three layers of polyurethane varnish, which creates a durable, moisture-resistant and perfectly smooth coating in white (similar to RAL 9003). The lack of visible grain emphasises the modern, minimalist style. This finish is ideal for kitchens, bathrooms and anywhere where aesthetics and functionality are important.

Handle
The handle positioned at the bottom of the sash ensures comfortable and natural window operation. It allows easy opening, tilting and closing, and thanks to the micro‑opening function, it enables safe and controlled ventilation of the interior. For larger models (with a width above 98 cm), two handles are used, which makes operating the sash easier and ensures even, airtight closing.

Locking bolt
A special locking bolt allows the sash to be secured in the fully rotated 180° position. This enables safe, comfortable and independent cleaning of the outer pane, without the need to go onto the roof or use professional services. This simple solution makes maintaining and cleaning roof windows significantly easier.

Glass
The extenal toughened glass in the U41 glazing unit is damage-resistant and comes with a lifetime hail warranty. It ensures durability and window protection against extreme weather conditions.

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thermoPro technology

The thermoPro technology provides effective thermal insulation, minimising heat loss in winter and protecting against overheating in summer. This solution guarantees year-round thermal comfort and noticeable energy savings.
topSafe system

The topSafe system enhances security thanks to reinforced window construction and resistance to break-in attempts or accidental opening. Your family gains peace of mind and complete home protection.
Environmentally conscious solution

The window is manufactured from FSC-certified wood and coated with water-based varnishes. Choosing this solution supports environmental protection and the idea of sustainable construction.
Design

The modern design of the cladding, developed in cooperation with the Institute of Industrial Design, emphasises the minimalist aesthetics of the window. Three colours – anthracite (RAL 7016), black (RAL 9005) and grey-brown (RAL 7022) – allow for a consistent match with the roof and accessories.
Durable protection

The U41 glazing unit is a durable solution that provides reliable protection against external factors. The external toughened glass increases resistance to damage and is covered by a lifetime hail damage warranty.

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