KEV B1200, KEV B1210 Uw 1.2 W/m2 K


KEV B1200, KEV B1210 Uw 1.2 W/m2 K

The Ultima is a superb roof window with unique sound reduction technology and a 20 year guarantee. It’s suited to a range of applications, but particularly buildings where sound insulation is a priority. The Ultima window is proof that in the search for better, we have no equal.

  • These exceptional roof windows excel with their superb technical parameters including a unique noise reduction system, and increased durability and comfort.
  • Dakea Ultima has an innovative noise reduction system, which mutes up to 50% of traffic and rain noise. The superb energy efficiency of 1.2 W/m2K is provided by outstanding glazing with two low-emission coatings and a krypton gas filling.
  • The pane preserves heat in winter and protects against it in summer. Additionally, it blocks 95% of UV radiation to prevent colour fading. For care-free maintenance, the external pane has a self-cleaning coating.
  • Dakea Ultima is reinforced and resistant to category II hurricanes. Its external pane is extra thick and toughened and the internal one is laminated to ensure full impact protection and a lifetime warranty against hail damage.
  • The solid wooden frame with a central axis of rotation has 2 layers of lacquer and comes in 2 colours: natural wood and white.
  • We are so certain of the high quality of our windows, that we give them a 20-year guarantee – the longest guarantee on the market, with no registration required.

Ready to buy? Request a quotation for your project.


Variant 12
Construction 33.2-10-6H
Double glazing 22 mm
Low E
Gas Krypton
Ug (W/m2 K) 0.9
Total solar energy transmittance 0.3


Uw (W/m2 K) 1.2
Water tightness E1350
Air permeability Class 4
Resistance to wind load Class C4*
Sound reduction (dB) 38 (-1,-3)

* sizes M10A, P8A, S8A, U4A, U8A: npd

KEV B1200

Size | cm price (without VAT) price (inc. vat)
C2A (55x78) 345.00 GBP 414.00 GBP
C4A (55x98) 360.00 GBP 432.00 GBP
F4A (66x98) 377.00 GBP 452.40 GBP
F6A (66x118) 404.00 GBP 484.80 GBP
M4A (78x98) 383.00 GBP 459.60 GBP
M6A (78x118) 421.00 GBP 505.20 GBP
M8A (78x140) 456.00 GBP 547.20 GBP
M10A (78x160) 520.00 GBP 624.00 GBP
P6A (94x118) 456.00 GBP 547.20 GBP
P8A (94x140) 520.00 GBP 624.00 GBP
S6A (114x118) 535.00 GBP 642.00 GBP
S8A (114x140) 590.00 GBP 708.00 GBP
U4A (134x98) 540.00 GBP 648.00 GBP
U8A (134x140) 665.00 GBP 798.00 GBP

Please contact our friendly customer support team for current lead times.
The estimated delivery time will be confirmed at the time of placing the order.

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Not sure whether you need a flat or pitched roof window? Can't decide between openable or fixed? Use our configurator tool.


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