EOS100 Pitched Skylights
Frameless roof windows for architectural specifications
,A bespoke-manufactured frameless skylight system for pitched roofs between 15 and 75 degrees. The EOS100 achieves certified U-values as low as 0.69 W/m²K — available in fixed, electrically opening, modular and conservation configurations, manufactured in the UK to exact project dimensions.
EOS100 — the specifier’s alternative to standard branded roof windows
The EOS100 is a bespoke-manufactured pitched roof glazing system designed for architects and contractors who require dimensional flexibility, certified thermal performance and a frameless internal finish that mass-market branded products cannot deliver.
Available for roof pitches from 15 to 75 degrees, the EOS100 is custom-made to any structural size — with no off-the-shelf constraints on dimensions, glass specification or frame colour.
Manufactured to specification — any size, any pitch, any project
Every EOS100 skylight is manufactured to order at our UK factory. Structural dimensions, roof pitch, glass specification and frame colour are all configured to the project brief. The frameless internal design creates a clean, unobstructed aperture — eliminating the visible framework that characterises standard roof window products and giving specifiers and architects complete control over the internal finish.
Certified Thermal Performance — Among the Lowest Available from a UK Manufacturer
The EOS100 achieves independently certified U-values of 1.06 W/m²K (double-glazed) and 0.69 W/m²K (triple-glazed, fixed configuration) — placing it among the highest-performing pitched roof glazing systems available from any UK manufacturer. Performance certificates for both configurations are available to download for specification and building control submissions.
Download technical details, brochures and spec sheets for the EOS97 opening rooflight system.
| Min. Structural Size: | 450mm | Max. Structural Size: | 4000mm |
| Standard Ext. Colour: | RAL7016 | Conservation | Optional |
| Glass Outer Opt: | 6/8 or 10mm Heat Soak Tested | Standard Int. Colour: | White |
| Double Glazed U Value: | 1.06 W/m2K | Glass Inner Opt: | 6/8 or 10mm Heat Soak Tested |
| Air Permeability: | EN 12207 | Triple Glazed U Value: | 0.69 W/m2K |
| Watertightness: | EN 12208 |
Optional Extras
Solar control glass – Reduces solar heat gain and offers high levels of natural light
Ritec easy clean glass finish – Makes the surface of the glass ‘non-stick’
Heat Soak Tested Glass — Standard Across the EOS100 Range
Heat soak testing is applied to all EOS100 outer panes as standard — not as an optional upgrade. The process identifies and eliminates nickel sulphide inclusions that cause spontaneous glass breakage, a critical safety consideration for overhead glazing installations.
The EOS100 is trusted by architects and main contractors across the UK precisely because this baseline quality standard is non-negotiable.
Balancing Aesthetics and Functionality
In architectural design, aesthetics must be carefully balanced with the integration of form and function. The EOS100 pitched skylight exemplifies this approach, offering effortless operation and a contemporary frameless appearance in both fixed and electrically opening models. Whether open or closed, these skylights blend seamlessly into any architectural style, providing both beauty and practicality to any space.
Modular EOS100 System — Multiple Units, Consistent Performance
The EOS100 system is available in modular configurations, enabling fixed and opening units to be installed side by side within a single continuous frame assembly. All units sit flush to each other — maintaining consistent sight lines and thermal performance across the full installation. This makes the EOS100 modular system the preferred solution for larger pitched roof openings in residential extensions, loft conversions and new-build projects.
Conservation Specification — Listed Buildings and Sensitive Sites
The EOS100 conservation skylight is designed specifically for listed buildings, conservation areas and sensitive historic sites where planning conditions restrict the visual impact of roof alterations. The conservation profile sits closer to the roof surface and uses a narrower outer frame — reducing visual prominence while delivering the same certified thermal performance as the standard EOS100 range.
EOS100 Flush
Designed to sit level with surrounding roof tiles or slates, this flush skylight is ideal for projects where visual impact must be minimal such as in conservation areas. It maximises natural daylight while maintaining a sleek, low-profile exterior that blends seamlessly into the roofline.
Below you can see our flush system against the non flush option.
Technical drawings are available to download for the fixed version of the EOS100 Flush Skylight. Click below to access the technical files.
Smart Opening Skylights
The EOS100 electric opening skylight supports intelligent, weather-responsive automation via our smart controller, enabling rain detection, temperature-based ventilation, and remote operation.
Operate your skylight effortlessly through voice commands via Alexa, Siri, and Google Home.
Set your skylight to close automatically when you leave and open as you arrive home.
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Durable, weather resistant and thermally efficient skylights
Our skylights are manufactured in high-quality, durable powder-coated aluminium frames to ensure ultimate air-and-water-tightness and thermal efficiency.
Thermal breaks in the frame minimise condensation; all of these features – combined with your choice of glass specification – mean that our opening or fixed skylights for pitched roof deliver incredible thermal efficiency with ultra-low U-Value.
If you are looking for a window which has either no or a low pitch (up to 15 degrees) you’ll need a flat glass rooflight or an opening flat glass rooflight. Flat glass rooflights are popular for kitchen renovations and wraparound ground-floor extensions.
Product Overview:
- Double and triple-glazed options
- Available made-to-order in any size.
- Provides enhanced energy efficiency
- Tinted, privacy and solar control glazing option
- Add Clear-Glass for crystal clear skylights
- Ten-year warranty
- Two-year electric motor warranty
- Intruder-proof
- Low U Values, with options delivering under 0.69 W/m2k
- Powder-coated aluminium frame in Anthracite Grey RAL 7016 (Matt)
EOS Glass Recovery Initiative
Recovered glass, made into full EOS Rooflights
Limited availability • First come, first server • Exc. Vat & Delivery
Contact our team
If you have any questions, would like a bespoke price or want to enquire about our installation service. Give us a call or drop an email:
0208 462 3557
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Frameless design coupled with exceptional thermal performance.