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A Blueprint for 2020: The Expansion of Early Learning and Childcare in Scotland
A rooflight series for sloped, shed or saw tooth roofs
Northlight 25-90°
Suitable for:
- Sloped, shed or saw tooth roof
- Flat roofing material
- Opening width in roof min./max. 0.6-3.1 m (for venting modules 0.8-2.5 m)
- Rooflight installation pitch 25-90°
Key benefits:
- Possibility of upright design
- Prevents glare and lets in a soft light when facing North
- Designed for installation directly in sloped roofs without adding a sub-construction
Product details
In short
Northlights are rows of modules installed up to 90° in order to provide large amounts of glare-free daylight, ideal for spaces that require soft light for optimum indoor conditions, e.g. at schools, offices, museums and galleries.
The Northlight solution does not require a sub-construction for installation and can be integrated into a sloped roof.
The modular Northlights allow fast and easy closure of the roof to reduce costs and make room for the interior works.
VELUX skylight specialists offer support throughout design, specification and installation, including design of the sub-construction needed for installation.
Additional solutions
A dual pitched asymmetric Ridgelight with infill panels on one side can be used as a cost-competitive alternative for shed roofs covering large spaces such as warehouses and factories.
Get inspired by our case studies
Airports / Railway stations
The Old Royal Station in Ballater
VELUX Modular Skylights brightens the experience for visitors at The Old Royal Station Ballater
Offices
Industrial / Warehousing
Vitsoe HQ
VELUX modular skylights illuminate Vitsoe HQ
Other solutions in this product group
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Frequently asked questions
Can the Northlight 25-90° roof window be used in buildings located in areas with strong winds or severe weather?
Can the Northlight 25-90° roof window be used in buildings located in areas with strong winds or severe weather?
Yes, the Northlight 25-90° installation can be used in areas with strong winds . VELUX Modular Skylights have a resistance to wind load classification of Class C5 (the highest classification) for sizes up to 2400 mm height. The modules are tested at pressures up to 2000 Pa with frontal deflection less than L/300, and they pass safety tests at 3000 Pa.
How does the sloping design of the Northlight 25-90° impact interior lighting and heat distribution?
How does the sloping design of the Northlight 25-90° impact interior lighting and heat distribution?
Northlight’s characteristic upright design is primarily for installations directed towards the northern hemisphere, providing soft and reflected lighting. This orientation reduces direct solar gain while maximizing diffused daylight, creating even illumination without excessive heat. A lower pitch creates more daylight inside, while a steeper installation allows for more controlled, indirect light distribution.
How does the Northlight 25-90° design contribute to energy savings over time?
How does the Northlight 25-90° design contribute to energy savings over time?
The Northlight 25-90° design contributes to energy savings by providing diffused northern light without direct solar heat gain, reducing cooling needs. The modules have excellent thermal insulation with U-values ranging from 1.3-1.5 W/(m²K) for double-glazing and as low as 0.86-1.1 W/(m²K) for triple glazing. The design allows for natural light without excessive solar heat.
How does the Northlight 25-90° skylight perform in terms of acoustics (e.g., noise reduction)?
How does the Northlight 25-90° skylight perform in terms of acoustics (e.g., noise reduction)?
The acoustic performance of VELUX Modular Skylights ranges from 35 (-1;-5) to 38 (-1;-4) dB depending on the glazing variant. Triple glazing generally offers better acoustic performance than double glazing, with some variants reaching 42 (-2;-6) dB reduction.
Can Northlight 25-90° be fitted with smart controls for light and ventilation management?
Can Northlight 25-90° be fitted with smart controls for light and ventilation management?
When venting modules are used, they can be controlled with either VELUX io-homecontrol® wireless system or an Open System solution (±24V DC) that can connect to building management systems via protocols like KNX, BACnet, LON, and Modbus.
Are there maintenance or cleaning considerations specific to the Northlight 25-90° design?
Are there maintenance or cleaning considerations specific to the Northlight 25-90° design?
Our general maintenance guidelines apply, including regular cleaning 1-2 times per year and ensuring drainage paths are kept clear of debris. Additionally, we recommend annual function tests for actuators and roller blinds.
What considerations should be made for solar heat gain in Northlight installations facing east or west rather than true north?
What considerations should be made for solar heat gain in Northlight installations facing east or west rather than true north?
For non-north orientations, selecting appropriate glazing options (standard low-E, Sun1, or Sun2 coatings) with different solar factors (g-values) would be important to manage solar heat gain.
What are the restrictions for incorporating venting modules in Northlight installations compared to standard Longlight installations?
What are the restrictions for incorporating venting modules in Northlight installations compared to standard Longlight installations?
For Northlights, there are restrictions on installing smoke venting modules, as it is not possible to fit wind deflectors in a Northlight configuration. As a result, optimal performance of the smoke venting module cannot be achieved.