Flat Glass Rooflight
Glazed rooflights configuration options

A modern rooflight for flat roofs
It’s stylish. But our unique, all-aluminium rooflight system is also built with efficiency in mind. Thermal breaks inside the system help deliver exceptional thermal performance, keeping warm air in and cold air out. Meanwhile, the glazed flat rooflight sits flush with your plaster for a clean, frameless appearance.
Our simple process

Browse Atlas aluminium windows, doors and glazed roof systems

Contact us, and we’ll match you with a trusted partner installer

They’ll be in touch to arrange a design consultation

Finalise your selection and wait for installation
Flat glass rooflight design options
Your home deserves a one-of-a-kind flat glass rooflight. That’s why our Atlas rooflight comes with several design options. Choose from three stock sizes and five standard colour options, with plenty of extra configurations to truly put a unique stamp on your home.

MULTIPLE COLOURS
As standard, Atlas flat glass rooflights are available in white, anthracite grey, black, anthracite grey/white, and black/white.

STOCK SIZES
Select from three stock sizes, including 1000 x 1000, 1000 x 1500, and 1000 x 2000.

THERMAL PERFORMANCE
Our Atlas standard double-glazed rooflights achieve outstanding thermal performance to keep you comfortable and energy efficient.
Key specifications of aluminium glazed roof lights
Atlas flat glass rooflights meet the following standards as a minimum. There are also optional upgrades or higher specifications available with certain systems:
- Built with only 1.0 w/m2K U value double glazing for excellent thermal performance
- Full aluminium thermally broken frame separates the air inside from outside extremes
- Narrow internal sightlines give you a perfectly flush finish
- Minimum roof pitch of 5 degrees allows water to drain off the rooflight naturally
- Built for security – standard toughened double-glazed spec of 6mm/16mm gas/6mm Low e (U Value 1.0 w/m2K)
- Hidden direct fixing and internal plasterboard pocket allow for easy boarding and plastering
- Straightforward installation with clip-in external weather bar and cover trim for concealing fixings, and a recommended kerb width of 80mm
- Available in three stock sizes: 1000 x 1000, 1000 x 1500, 1000 x 2000.
Download a Brochure
FLAT ROOFLIGHT STOCK SIZES
F1

1000 x 1000
F2

1000 x 1500
F3

1000 x 2000
STANDARD COLOUR OPTIONS

White

Anthracite Grey

Black

Anthracite Grey/White

Black/White


Browse our other Atlas glass roof systems
Frequently asked questions
What is the life expectancy of a flat glass rooflight?
Using high-quality design and materials, flat glass rooflights should last for many years. Our Atlas aluminium rooflights are designed for longevity, with a 10-year seal and easy-clean coating warranty as standard.
What is the minimum U-value of a rooflight?
UK building regulations aim to make sure that buildings are built to last and energy efficient. As such, they set minimum standards that homes and their components must achieve.
The current lowest acceptable U values (describing thermal performance) are 2.2 w/m2K for rooflights and 1.6 w/m2K for other roof windows. As such, using 1.0 w/m2K double glazing as standard and achieving overall U values of 1.4 w/m2K, Atlas flat glass rooflights perform well above the required level.
Do you need planning permission for a rooflight?
Most standard residential flat rooflights won’t require planning permission. However, this can vary based on factors such as whether the planned work will raise the height of your existing roof. It’s always best to check before starting work.

Why choose Atlas?
At Atlas, we design and craft our flat glass rooflights to the highest standards. Our systems are built using high-thermal-performance double glazing as standard, helping to keep your home at a comfortable temperature throughout the year. We also offer several customisation options to create the ideal rooflight for your home. With our expertise and attention to detail, your glazed rooflights are designed with both form and function in mind. They also come with fast delivery and easy installation. Speak to our friendly team today to learn more.