Better Energy

KAV B1500, KAV B1510 Uw 1.1 W/m2 K

Better Energy

KAV B1500, KAV B1510 Uw 1.1 W/m2 K

  • Dakea Better Energy is a modern, energy-saving roof window with a three-pane, two-chamber package and a central rotation axis
  • The two-chamber design provides better insulation, less heat loss in the winter and a limited amount of heat getting inside in the summer
  • Three-pane windows are known by better U-value, both the glass itself and the window frame, which can reduce heating costs and thus reduce environmental pollution
  • Energy efficiency: Uw = 1.1 W / m2K, three-glass / two-chamber package
  • We recommend Dakea Better Energy windows for rooms where thermal comfort is required, e.g. living rooms and bedrooms, etc.
  • Dakea Better Energy windows come with a free Dakea Quick Install (RUC) vapor barrier collar. The Quick Install Flashing reduces installation time and ensures that the structure is properly sealed
  • Dakea Better Energy roof windows can be installed with all roofing materials between a slope of 15 to 90 degrees. Original Dakea Flashing is required to properly install windows!


Construction 4-12-3HS-12-3H
Triple glazing 34 mm
Low E
Gas Argon
Ug (W/m2 K) 0.77
Total solar energy transmittance 0.55


Uw (W/m2 K) 1.1
Water tightness E1350
Air permeability Class 4
Resistance to wind load Class C4*
Sound reduction 33 (-1,-3)
Ventilation valve

* M8A, M10A size: no performance data


Natural wood 1500
White painted 1510
Size | cm price (without VAT) price (inc. vat)
C2A (55x78) * 305.00 GBP 366.00 GBP
C4A (55x98) ** 324.00 GBP 388.80 GBP
C6A (55x118) ** 334.00 GBP 400.80 GBP
F4A (66x98) ** 339.00 GBP 406.80 GBP
F6A (66x118) ** 361.00 GBP 433.20 GBP
M4A (78x98) * 337.00 GBP 404.40 GBP
M6A (78x118) ** 380.00 GBP 456.00 GBP
M8A (78x140) ** 422.00 GBP 506.40 GBP
M10A (78x160) ** 470.00 GBP 564.00 GBP
P6A (94x118) ** 423.00 GBP 507.60 GBP
P8A (94x140) ** 473.00 GBP 567.60 GBP
S6A (114x118) ** 492.00 GBP 590.40 GBP
S8A () ** 520.00 GBP 624.00 GBP
U4A (134x98) ** 476.00 GBP 571.20 GBP
U8A (134x140) ** 560.00 GBP 672.00 GBP

Prices are in £. Delivery mainland.
*3-5 working days delivery time (from manufacturer to merchant)
**3-5 weeks delivery time (from manufacturer to merchant)
Delivery time is in working days from receipt of orders placed before 12 pm. Only for LTL deliveries (less truck-load). The above lead times may be subject to change, according to stock availability. The estimated delivery time will be specified at the point of ordering and in the Order Confirmation.

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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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