Optional 97mm Insulated Upstand
We use Internal Structural Sizes

0.97 WmK System U Value

FREE Delivery within 7-10 Days
8.8mm
Laminate Upgrade
Product Description
The unique design of our EOS97 electrical rooflight allows the motor to be concealed within our insulated upstand. This ensures a sleek, contemporary design and means both the Fixed and Opening rooflights look identical from above and below.
We currently offer three off-the-shelf sizes but can manufacture to almost any size. Lead times are 7-10 days for standard sizes and 5-6 weeks for all made-to-measure orders.
- Designed for roofs between 0-15 Degrees
- External frame colour - RAL 7016 (Matt)
- Support - Includes flat insulated upstand with concealed motor.
- Strength - 6mm Heat Soak Tested Toughened outer pane
- Safety – 8.8mm laminate Inner pane as standard
- More Light – Quoted sizes are Internal Structural Openings
- Electric Operation – Powered by premium "WindowMaster" motors for reliable performance.
- Triple Gasket System – Ensures exceptional airtightness and energy efficiency.
- Hidden Motors – A discreet design for a sleek interior finish.
- Internal Plaster Stop – Simplifies plasterboard installation for a clean look.

Insulated Upstand
Each of our Eco-Friendly EOS97 opening roof lights are supplied with their own insulated 97mm timber upstand, including concealed motors. Or if your upstand is already made we have an option that can site on top of an upstand made on site. Find out more

Buy Direct from the Manufacturer
All of our rooflights are handmade in our Kent based Factory. EOS are a proud member of the 'Made in Britain' initative.

How do the Sizes Work?

At EOS, we take our measurements from the internal structural opening size (hole in the roof). The actual rooflight will be 248mm larger. Learn more about rooflight sizes.
Glass Specification
Our electrically opening roof lights are supplied with double glazed super low ’e’ coated units with argon filled cavities.
Click here for more information on glass options.
Safety Standards and Testing
Your safety is paramount to us at EOS, and this is why we recommend the laminate glass package. The glass within our opening roof lights include toughened glass but we recommend our upgrade to 8.8mm laminate inner unit. Learn more about our standard toughened and safety laminate glass packages.
Glass Options for Standard Rooflights
Standard Toughened Glass Package
This package features a 32mm double-glazed unit with a 6mm toughened outer pane, a 20mm argon-filled cavity, and a 6mm toughened inner pane. Engineered for exceptional strength through the glass toughening process, this is the most cost-effective solution for your project.
Safety Laminated Glass Package
Upgrade to a 34.8mm double-glazed unit featuring a 6mm heat-soaked toughened outer pane, a 20mm argon-filled cavity, and an 8.8mm clear laminated super Low E inner pane.
The thicker laminated inner pane offers enhanced safety and security, requiring significant force to penetrate. Additional benefits include improved noise reduction and greater durability.
The outer unit is also upgraded to heat-soaking process, where the glass is heated to high temperatures for an extended period. This rigorous process forces any impurities, such as nickel sulfide inclusions, to cause breakages during testing. By doing so, only glass units free from these imperfections remain, ensuring a higher level of reliability and reducing the risk of spontaneous breakages in the finished product.
Black Banding
Add a sleek aesthetic with a black vinyl paint border applied before glazing. This feature creates a seamless finish when viewed from above, ensuring a clean and modern look from every angle.


Upstand Options
We offer two options to suit your installation needs:
Rooflight Only - Upstand by Others
Our rooflights are designed to sit on upstands 105mm–90mm wide (provided by others). It is your responsibility to ensure the upstand complies with building regulations.
Fully Insulated 150mm Upstand
Upgrade to a hassle-free, thermally superior solution that guaranteed to pass building regulations, choose our in-house fully insulated upstand. It features:
- Quick and easy install provided in kit form or per-fabricated.
- Super thermal performance A foam core and OSB outer achieves a U value of 0.43 W/m2.
- Triple Gasket Sealing for peak air tightness.
- Inner Plaster Reveal for a clean, professional interior finish.
Available in-store at 150mm high for simple installation. If you require a 300mm or sloped version, please contact our team for assistance.
Upgrade Your Rooflight with Smart Automation
Transform your vented rooflight into a responsive smart system with our innovative Smart Switch upgrade. This feature enables your skylight to adapt to changing weather conditions, humidity levels, and outside temperatures automatically.
With this upgrade, you can:
- Automate closing and opening: Ensure your skylight closes whenever you leave home and opens upon your return for optimal convenience and security.
- Stay connected: Seamlessly integrate with popular smart devices, including Alexa, Siri, and Google Home, for effortless voice control.
- Enjoy peace of mind: Maintain a comfortable and efficient home environment without manual adjustments.
Sizes with EOS Insulated Upstand
All you need to measure is the internal structural size. Build your roof opening to match the EOS Order Size, and our rooflight will fit seamlessly on top, featuring a 150mm high insulated upstand.

Sizes with Upstand BY OTHERS
For those creating their own upstand, it should be 80mm–100mm wide with at least a 5-degree pitch to ensure water runoff. Make sure the internal dimensions match the EOS Order Size precisely.
