Description
Technical parameters
Price and sizes
Technical documentation
Related products

CONSERVATION

KCV B911, KCV B901

A roof window which provides a wooden frame that looks natural and simple to suit listed or heritage buildings.
32 (-1,-5) dB
Sound reduction
Uw 1.3 W/m2 K
Thermal transmittance
168 km/h
Speed wind tested up to
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Conservation Compliance
Dakea’s conservation roof windows are designed for conservation areas and heritage buildings, featuring a natural wooden frame that blends seamlessly with historic aesthetics.
Heritage-Friendly Design
A classic, wooden internal finish and a vintage look with black glazing bar. Black flashings available for most common roofing materials, including plain tile.
Affordable Quality
These windows offer an affordable solution without compromising on quality, ideal for projects with small budgets while providing good insulation and durability.
More light and fresh air
An efficient way to add light and insulation to attic rooms or loft conversions, increasing living space. Roof window includes a ventilation valve with two locking positions for fresh air.
Solid Wooden Frame
Solid wooden frame, available in natural or white-painted pine. We guarantee that all our wood is certified, rigorously selected, arctic nordic pine, which is known for excellent density and increased durability due to very harsh weather conditions of the region.
Roof pitch
Compatible with all roofing materials on slopes of 15 to 90 degrees, requiring original Dakea flashing for proper installation.
Hail Damage Guarantee
Toughened external pane with a lifetime guarantee against hail damage.
Long-Term Assurance
10+10 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.

Technical parameters

Thickness of glazing (mm) 24
Pane construction from inside (Resistance to snow load) 4-16-4H
Pane technical construction (for internal use) 4V6-16G1-4HV6
Thermal Transmittance glazing Ug (W/m²K) 1.0
DOP webpage Dakea
Reaction To Fire (Class) C-s1, d0
External Fire Performance -
Impact Resistance -
Load Bearing Capacity -
Noise reduction Rw (dB) 32 (-1;-5)
Thermal Transmittance window Uw (W/m²K) 1.3
Total solar energy transmittance 0.55
Light Transmittance (Tv) 0.79
NB Reaction to fire 1415
NB Thermal window 1390
NB Solartransmittance 0757
NB LightTransmittance 0757
NB All 0757, 1390, 1415
UV-transmittance 0.19
Colour External Black (RAL 9005)
Colour Internal Pine
Design Centre pivot
Easy-to-Clean coating No
Extra IFC free of charge No
Extra RUC free of charge No
Extra sound reducing foil No
Frame style Standard
Gas Argon
Handle Dakea-Pro (J2A)
Lacquering Two layers of water based lacquer
Low-E coatings 2
Material Product Wood
Pane Laminated No
Toughened external glass
Ventilation positions via handle 2
Ventilation Valve
Wood treatment Fungicide protection
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

Technical documentation

KCV B901 SPECIFICATION SHEET pdf
Dakea Conservation_KCV B911 pdf
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Where to buy

Find Dakea roof window sales points in your area!

Online resources

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

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