Description
Technical parameters
Price and size
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Ultima Comfort

KEV B4800, KEV B4810

Ultima Comfort is a new model within the Ultima range. This triple-glazed roof window provides improved design, enhanced acoustic insulation, and even higher energy efficiency values, offering the highest level of user comfort.
Natural wood (KEV B4800)
White painted wood (KEV B4810)
40 dB
Sound reduction      
Uw 0.90 W/m2 K
Thermal transmittance
Titanium dioxide coating
An easy-to-clean effect on the glass from the outside
168 km/h
Water tightness tested in extreme wind conditions
Free of charge RCF foil
Ensures 100% water tightness
Free of charge IFC collar
Reduces the heat loss around window frame
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Excellent Energy Efficiency
The outstanding Uw parameter of the Ultima Comfort window makes it stand out among standard triple-glazed windows available on the market. As a result, the inner pane is up to 12% warmer in winter, providing greater thermal comfort and energy savings.
Acoustic Comfort
Thanks to its modified design, the Ultima Comfort window reduces external noise by 40 dB, which means a 50% reduction compared to standard triple-glazed windows.
Improved reinforced construction
The modified design of Ultima Comfort features a new 48mm glazing unit filled with argon and a 20% thicker sash compared to the previous model. This makes the window more durable, airtight, and resistant to harsh weather conditions.
Easy-to-clean effect
Application of titanium dioxide coating on the external glass surface ensures an easy-to-clean effect and leaves your window looking much cleaner. Exclusive titanium dioxide coating helps clean the outer pane with rainwater.
UV-ray protection
Thanks to glazing blocking up to95% of harmful UV rays while still letting the light in.
Thermal comfort all year round
Warmer house during winter and less overheating during summer - thanks to two different layers of heat reflecting and sun protective coatings on the pane.
Hail Damage Guarantee
Toughened external pane with a lifetime guarantee against hail damage.
Installation collars free of charge
To ensure fast, efficient and easy installation our roof window is equipped free of charge with the Dakea Quick Install collar (RUC) and Insulation Foam collar (IFC).
Certified Wood
We guarantee that all our wood is rigorously selected pine sourced from renewable forests with FSC certification.
Long-Term Assurance
20 years homeowner to homeowner transferable guarantee. Add value to your home when you resell or rent it on top of the peace of mind you get.
Roof pitch
Compatible with all roofing materials on slopes of 15 to 90 degrees, requiring original Dakea flashing for proper installation.

Technical parameters

Variant 4800
Construction 33.2SS-16-3HS-16-6H
Pane structure (mm) 48
Low E
Gas Argon
Toughened
Laminated
Ug (W/m2 K) 0.5
Total solar energy transmittance 0.25
Uw (W/m2 K) 0.90
Water tightness E1350
Air permeability Class 4
Resistance to wind load Class C4*
Sound reduction (dB) 40 dB

* sizes M8A, M10A: npd

Prices and sizes
Discover a wide range of roof windows with various sizes and price options to fit your needs.
Check the price list and sizes

Download

Dakea Ultima Comfort
KEV B4800
Specification sheet pdf
Installation manual - KEV B1810 pdf
How to use and maintain roof windows pdf
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Window Configurator
Select the right Dakea roof window for your project using our window configurator. Create the ideal solution for your B2B clients.
Set up the roof window

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Where to buy?

Find Dakea roof window sales points in your area!

Online materials

We prepared a knowledge base where you will find useful information about installation best practise, compatibility of our products as well as any certificates and technical parameters.

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FAQ

Dakea Ultima Comfort is designed to enhance living comfort in loft spaces by combining excellent thermal insulation, abundant natural daylight, and reliable weather protection. Its high-performance glazing helps reduce heat loss in winter and limits overheating in summer, contributing to a more comfortable indoor environment all year round.

Yes. The Dakea Ultima Comfort roof window features advanced glazing technology and a thermally insulated construction that helps improve the energy efficiency of your home. By reducing heat transfer through the window, it can help maintain a stable indoor temperature and support lower heating and cooling costs.

The Dakea Ultima Comfort roof window is ideal for habitable attic spaces such as bedrooms, living rooms, home offices, and children’s rooms. Its combination of natural light, thermal comfort, and ventilation makes it well suited for rooms where comfort and everyday living are a priority.

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