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Coxdome Flat Glass Rooflight


From 2-3 working days lead time

This item is made to order
All prices are subject to 20% VAT

Custom Size

What is a Coxdome flat glass rooflight?

Coxdomee flat glass rooflights consist of an uninterrupted glass surface, maximising natural light and offering stunning views of the sky. These aluminium framed rooflights are produced with a double-glazed unit with extra safety provided by a laminated internal pane and a toughened external glass pane. This toughened outer glass pane boasts a ceramic edge coating to give a classy finish to your skylight. The rooflight will be a fantastic addition to your property with its contemporary design. 

The COXDOME Lumiglaze glass rooflight is perfect for installation on a flat roof. Condensation formation is prevented by the thermally broken upstand, which safeguards a solid thermal performance. Concealed fixing screws to be fitted beneath the flush cover are supplied with the rooflight.

We sell a variety of Coxdome rooflights, including:

You can also view our full range of rooflights and skylights for quality and affordable features.

Key benefits of a Coxdome flat glass rooflight:

  • 10 years manufacturer’s warranty
  • Perfect for both refurbishment projects and new builds.
  • Pure daylight provided by the continuous glass surface.
  • Elegant appearance from external roofscape
  • Clear panoramic when viewed internally
  • Installation Pitch 3-7°
  • Toughened outer glass pane with ceramic edge coating
  • Internal thermal break
  • High security fixings supplied as standard
  • For a minimalistic look, the fixings screws are hidden by a flush cover


  • U Value 1.0
  • Sound insulation 35dB

More rooflights

Masuring & Installation Guide

The sizing chart provided below will show you the opening size required for the glass size you’re purchasing. The upstand for installing this product would need to be 75mm wide and 150mm high, your overall glass size will need to be 150mm bigger on each length when compared to your opening size. For example, a 1000mm by 1000mm opening size will require a glass size of 1150mm by 1150mm.

The size you purchase online will need to be the same size as the external weathered upstand size for your project, demonstrated on the below image.

Coxdome Flat Glass Drawing (Download PDF by clicking the icon)

Coxdome Flat Glass Installation (Download PDF by clicking the icon)

Technical Information

Coxdome Flat Glass Rooflight Specification:


The manufacturer supplies this product with a 10 year warranty.

Delivery & Lead Time

We currently advise 3-5 working days for the lead time of this product. You will need to please ensure that sufficient labour is on site to sign for the product and accept delivery.
All sizes are made to order and cannot be returned. Please ensure you’re ordering the correct size before proceeding with your purchase.

Based on 210 reviews
Bob toploft
Bob toploft
I am the owner of Top loft company ltd, after reviewing reviews from various companies I ordered 2 juliet balconies from tgs arrived within 3 weeks, comunications and help was brilliant. Thanks for all your help.
Jim H
Jim H
Great service from the team. Easy to order, good buying guidance and clear install instructions for my builder. Rooflights look absolutely great! The team at TGS couldn't have been more helpful in organising a smaller delivery vehicle to help with restricted access. Highly recommend TGS.
Jack Smith
Jack Smith
Great service from a very knowledgeable company. Thanks team Toughened Glass Systems.
Paul Smith
Paul Smith
I was spending a lot of money on several rooflights so I wanted to make sure I got it right and I did. The professionalism, expertise and the quality of the roof lanterns really set Toughened Glass Systems apart.
Tyrone Eldridge
Tyrone Eldridge
There are no complaints about the experience with TGS. The entire process of ordering, supplying and delivering was flawless. I would really recommend you order your flat roof sky lanterns from these guys.
Robert Childers
Robert Childers
Best place for rooflights, they supply many different types and options. Thanks for all your support Toughened Glass Systems!
John Smith
John Smith
The glass balustrade gives us an amazing view onto the lake outside. So happy we ended up going for the frameless glass balcony from Toughened Glass Systems instead of one with posts
Louise Newsome
Louise Newsome
My job is to design the interiors for a lot of houses and a lot of times the hardest part was when the client wanted some really inexpensive rooflights that should look like some contemporary ones as well. That until I found Toughened Glass Systems and started working with them more and more. They have a lot of this kind of stuff at a very decent price, a price for anyone I can say. If you’re looking for cheap skylights for flat roofs or any types of roof lights, they probably have something for you.
Krystina Taylor
Krystina Taylor
Always kept us up to date with our order even when delayed by a few days. Great service from the start and good quality glass balcony delivered.