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KSP

Key Selling Points

  • Fully bespoke sizes to suit your space and style, from 250 mm to 3000 mm with an impressive maximum of 2.25 medge-to-edge view of the skies above
  • Superior energy efficiency, achieving an astonishingly low thermal transmittance of Uw 1.1 W/(m2K), according to EN 14351-1 and with a 0.5 Ug value
  • All our opening rooflights are operated wirelessly and include a rain sensor as default
  • Vario’s rooflights come with a laminated inner glazing as standard, for superior safety in the unlikely case of breakage
  • Includes a 150 mm insulated wooden upstand
Add-ons

Add-ons

  • Vario’s opening feature allows natural, healthy ventilation of your home, the mechanism is completely invisible as the motor is beautifully integrated into the upstand
  • Upgrade your opening window with VELUX Active with NETATMO. VELUX Active is our newest Smart Home addition, which ensures a healthy indoor climate and smartphone operation
  • The walk-on feature is available to you on all fixed square edged rooflights up to 2 m2
  • Choose Sun Protection glazing to reduce the heat gain by at least 30% – ideal for rooflights oriented towards the South or West
  • For optimal security for your home choose the burglary resistance feature that has been tested according to EN 1627:2011 & NEN 5096:2012+A1:2015
rooflight
10 Years Guarantee
Applies to all Vario by VELUX rooflights, including glazing units.
Daylight Experts
We're here to help whenever you need us, before, during and after you install your bespoke rooflights.
Safety & Security
Our rooflights have laminated inner panes to ensure your safety and come with a burglary resistance option.
Smart Home
A sensor-based-operation of your rooflights & full indoor climate control using your smartphone.
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Dimensions

Dimensions

Streamlined and sleek, The Long Slim Rooflight usually stretches across a wide span. It can be fully customised up to a ratio of 1:6, you might have a long window with a visible internal glass width of 500 mm and a length of 3000 mm. The maximum span for The Long Slim Rooflight is 3000 mm in either width or length and it can span up to 2,25 m2 of glazing, giving you a true "outdoors indoors" feeling from your rooflight.

To make your Long Slim Rooflight truly personalised, you can choose from a huge array of helpful features, such as:

  • Different insulating glazing units
  • Motorised ventilation
  • Walk-on capability for roof terraces
  • Other great custom features

The Long Slim Rooflight fits perfectly between rafters, and can span the length or width of the rafters, creating a magnificent band of light to pour daylight into your room from above. Need to go even bigger?

Try The Unlimited Rooflight where you can create your ideal span using a combination of units until you realise the full extent of your daylight desires.

Glazing

Glazing

Our insulated glazing units offer you the option of double glazing or triple glazing units for your rooflight. Choose double glazing for the maximum daylight drenching effect or triple glazing if superior energy saving eco credentials are your priority. Our advanced Sun Protection offers significant heat reduction, without any green/blue tint in the glazing.

All our glazing units:

  • Come with a laminated inner pane, which we consider a prerequisite for safety measures. The lamination also eliminates the risk of UV rays fading your interior furnishing.
  • Use three different glazing constructions to ensure the best quality and durability for our larger glazing units
  • Have warm edge spacers to ensure a thermal breakage and energy efficiency
  • Come with a 115 mm black silk screen to protect the underlying gasket system and for aesthetic purposes

As an example, our triple glazing has a LowE coating with a superior insulating value of Ug 0.5 and a light transmittance of 71%. We use an 8 mm toughened outer pane and a 12.76 mm (66.2) laminated inner pane, separated by two argon gas fillings for thermal performance. See all the specific values of our glazing constructions in our glazing table.

frame construction
Frame Construction

Frame Construction

All our lightweight aluminium rooflight frames are:

  • Designed to work perfectly with our laminated insulating glazing units
  • Crafted from highly durable and strong 5 mm aluminium, selected for its high corrosion resistance, joint strength and malleability
  • Hand-welded on the inside of the corner sections to ensure a smooth surface and a completely seamless connection
  • Treated with a polyester powder coating to ensure a tough, weather and corrosion resistant, durable finish
  • Powder coated with our standard RAL 9005 Jet Black
  • Can be customised through a variety of special colours

We have constructed specific aluminium frames for our double glazing units and our triple glazing units, to ensure that the pane is positioned as low as possible in the construction, which ensures an ultimate insulating value for the rooflight.

Upstand

Upstand

The Long Slim Rooflight comes with a wooden upstand that uses rock wool insulation to keep your home snug. The natural wood allows for an easy and safe installation and is a perfect match to the remaining rooflight construction.

Our upstands come with:

  • A superior pre-fitted gasket system, ensuring a 100% tight and secure connection between the frame and upstand construction
  • A pre-installed vapour barrier, which ensures a safe and easy connection to the roof itself
  • An internal surface treated with a membrane of water based white coating (RAL 9010) on the waterproof plywood
  • An external surface of untreated waterproof plywood, which is great for applying roofing felt or other flat roofing materials

Our upstands come in 150 mm and 300 mm, depending on project requirements and architectural specifications.

For customised upstand heights, please contact us.

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Performance

Performance

As all Vario by VELUX rooflights are bespoke products and individually made to order, the Declaration of Performance [DoP] will be unique for each roof window. Some of the essential characteristics will be based on product type, size and variant you choose for your long window. The specific DoP will be generated through our online DoP configurator, for each individual product.

If you would like to request a specific DoP, please contact us.

Automation

Automation

Everything from integrated motor, wireless remote controls to rain sensor is included when buying our opening roofligts. Our wireless remote controls let you easily control your rooflights at the push of a button. We use the proprietary VELUX communication protocol (iO Home Control®), which ensures complete integration to all electrical products from the VELUX Group.

VELUX ACTIVE

To provide you with peace of mind when opening your windows, we always include our sleek rain sensor, which automatically closes your rooflight in case of a sudden cloudburst. We offer VELUX ACTIVE which is an automatic, sensor-based operation system that monitors temperature, humidity and CO2 levels and automatically operates your rooflights and other VELUX products directly from your smart phone using the VELUX ACTIVE app. Enjoy easy and fast installation all at a price of £183,33 ex VAT. Read more here.

velux active smart homes vario by velux
Get your own
bespoke rooflight
Call us +44 (0) 1592 778 246 or email us vario@velux.co.uk
We're here to support you with your rooflight design and purchase in any way we can. All you have to do is ask our daylight experts!
We can help you design your dream home, using natural light from bespoke rooflights.
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Inspiration insights
Ask us about inspirational notes and insights that will serve as a stimulus to create your perfect daylight oasis.
Product Counselling
If you're not sure which Vario by VELUX rooflight you need, we can guide you to your perfect match.
Installation Guidance
Get support and guidance to help your rooflight installation be smooth and stress free.
Long Slim One Product Documentation
Installation Guide
Installation Guide for the fixed Long Slim One
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Cross Section - Fixed Rooflight
Upstand 150 mm (PDF)
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Cross Section - Fixed Rooflight
Upstand 300 mm (PDF)
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Cross Section - Fixed Rooflight
Upstand 150 and 300 mm (DWG)
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Cross Section - Opening Rooflight
Upstand 150 mm (PDF)
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Cross Section - Opening Rooflight
Upstand 300 mm (PDF)
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Cross Section - Opening Rooflight
Upstand 150 and 300 mm (DWG)
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