Designed for 100mm
Builders Upstand
We use External Upstand Sizes

1.24 WmK System U Value

FREE Delivery within 7-10 Days
Solar Control Glass as Standard
Product Description
Our slimline aluminium lantern boasts clean, contemporary looks coupled with high performance glazing.
The unique warm frame profile ensures exceptional thermal performance while our free solar control upgrade ensures your home stays cool, all year round.
We currently offer 10 stock sizes at great prices with delivery in as little as 7 days from order. Please contact us for made to measure sizes.
- Low 25 degree pitch
- Contemporary design
- Single or dual colour - Anthracite Grey RAL 7016 (Matt) Jet Black RAL 9005 (Matt), Hipca White RAL 9910
- Comfort - Solar control glass (Blue Active) included as standard
- Low Maintenance - Easy Clean free upgrade
- Unique warm frame - Improved thermal efficiency


Downloads
Please find below useful documents, such as fitting instructions and technical drawings.
How do the Sizes Work?

Measurements are taken from the outside edge of your kerb / upstand. The structural opening (hole in the roof) measurement would be 200m smaller.
Glass Specification
Our lanterns are supplied with double glazed super low ’e’ coated units with argon filled cavities.
Our standard glass specification is:
- 28mm high performance double glazed unit.
- 4mm toughened outer pane with solar control
- 20mm argon filled cavity
- 4mm toughened inner pane with solar control and self cleaning upgrade
- Free Upgrade we include both solar control and self cleaning glass as standard.
Simple Installation
This product is supplied flat packed ready for quick and easy installation on site.
The clever design of our lantern frame means they can be installed in under an hour. While no specialist glazing skills are required some basic construction expertise is recommended.
Please view our Aluminium Lantern installation guide
Upstand Options
We offer two options to suit your installation needs:
Rooflight Only - Upstand by Others
Our rooflights are designed to sit on upstands 100mm–75mm wide (provided by others). It is your responsibility to ensure the upstand complies with building regulations.
Opt for a hassle-free, thermally efficient solution designed to meet building regulations with ease. Our fully insulated 150mm upstand offers:
- Simple Installation: Available in kit form or pre-fabricated for a straightforward setup.
- Outstanding Thermal Efficiency: A high-performance foam core with an OSB outer achieves a U-value of 0.43 W/m²K.
- Double Gasket Sealing: Ensures superior airtightness and weatherproofing.
Upgrade to our insulated upstand for a professional finish and enhanced energy performance, making installation quicker and stress-free.
Available in-store at 150mm and 300mm height, If you require a 300mm flat upstand option, please contact our team for assistance.
Sizes with EOS Insulated Upstand
Our insulated upstand is 100mm wide. To ensure a perfect fit, simply make your structural opening 200mm smaller than your order size. This allows the rooflight to sit securely and perform at its best.

Sizes with Upstand BY OTHERS
We recommend that your upstand is 75mm–100mm wide, so your structural opening will need to be adjusted accordingly. Please note, it is your responsibility to ensure the upstand complies with current building regulations.

Frame Colour Options - Aluminium Lanterns
Customise your aluminium lantern to perfectly complement your space with our range of premium frame colours. Choose from:
Anthracite Grey (RAL 7016, Matt)
Jet Black (RAL 9005, Matt)
Hipca White (RAL 9910)
We also offer single or dual-colour options, allowing you to have a different colour inside and outside for ultimate design flexibility.