£1,699.20 inc. VAT

Signature Fixed Flat Glass Easy Clean Rooflight in Anthracite Grey 100x300cm

Delivery: 1 working day
Product Code:
1 working day
100300 FD AG RITEC

£1,699.20 inc. VAT


Product Description

Next day delivery available on orders placed before 11am only.

Our Signature range of fixed flatglass rooflights provide an aesthetically-pleasing and effective daylighting solution for a wide range of project types. Leading-edge roof light design means that the daylight is maximised, while the visible framework is minimised, resulting in a product that offers the best in both form and function.

Our rooflights are designed to sit on a builder's kerb, so the roof can quickly be made weathertight during the early build stages. Once the rooflight is delivered, it can easily be fitted on to the upstand. We keep our most popular sizes in stock, so we can deliver to you when you need it.

The Signature flat glass rooflights all come with standard RAL colour anthracite grey. Alternative RAL colours can be selected when placing your order. For custom design finishes, please contact us on the number above.

All of our flat glass roof lights can be supplied as either double or triple glazed units, in varying shapes and sizes in order to suit different room layouts.

We offer an easy clean glass upgrade for very little additional cost, and an obscure glazing option at no extra cost!

A border on the glass is not required, therefore the nice profiled frame gives less wasted glass area. The frame is thermally broken.

For more information, please see our flat rooflight buying guide


Made to measure signature rooflights

Double Glazed Units

  • Maximum standard kerb size:
    • Square - up to 180cm x 180cm or 330cm2 as standard, up to 230cm x 230cm (via special order)
    • Rectangular - up to 490cm2 (toughened Glass) as standard, up to 700cm(single pane, via special order)
  • Outer skin: 6mm Clear, Heat Strengthened, Toughened
  • Cavity: 16mm Argon filled (90%) with warm edge spacer
  • Inner: 6mm Clear. Heat Strengthened, Toughened with Low E coating
  • Silicone bonded
  • Centre pane U-value 1.1 W/m²K
  • Acoustic reduction 35 RwdB
  • Light transmission 78%
  • G Value 0.63
  • Design loads
    • 750 N/m² wind
    • 640 N/m² snow

Triple Glazed Units

  • Maximum standard kerb size:
    • Square - up to 180cm x 180cm
    • Rectangular - up to 300cm2 as standard
  • Outer skin: 6mm Clear, Heat Strengthened, Toughened
  • Cavity: 16mm Argon filled (90%) with warm edge spacer
  • Middle skin: 6mm Clear, Heat Strengthened, Toughened
  • Cavity: 16mm Argon filled (90%) with warm edge spacer
  • Inner: 6mm Clear, Heat Strengthened, Toughened with Low E coating
  • Silicone bonded
  • Centre pane U-value 0.8 W/m²K
  • Acoustic reduction 35 RwdB
  • Light transmission 65%
  • G Value 0.50
  • Design Loads
    • 750 N/m² wind
    • 640 N/m² snow

Additional options

  • We can supply bespoke glass specifications, shapes, and sizes, to meet your project requirements
  • Ritec Easyclean
  • Satin obscure glazing
  • Body tint anti-sun (grey, bronze, green)
  • Arctic blue anti-sun body tint
  • High performance solar control
  • Low iron (extra clear glass, but must be to both inner and outer skins)
  • Enhanced Low E for centre pane U-value 1.0 W/m²K for double glazed, and 0.7 W/m²K for triple glazed
  • Any RAL colour available on request
  • Secure by design available on certain sizes


  • All Signature rooflights are designed and manufactured in the UK
  • Fully compliant to UK Building Regulations
  • Non-fragile, CWCT TN 66, 67 & 92 (Class 2) ACR[M]001:2011 (Class B) compliant construction
  • Wide range of glazing and ventilation options
  • Warm edge spacer for improved thermal performance
  • Recommended minimum pitch of 5o up to a 200cm span, and 10o over a 200cm span


Ritec ClearShield Eco-Glass™

Rooflights are always in hard to reach areas, and their position means that they can get very dirty. Sterlingbuild can offer a solution to this problem with Ritec's award-winning ClearShield Eco-Glass™ for flat roof windows. It has been specially developed for the renovation, protection and maintenance of both new and already installed glass.

ClearShield Eco-Glass™ is a “non-stick” glass, meaning your window stays cleaner for longer, resists all types of staining and discolouration, and keeps your glass looking like new.

Ritec's ClearShield Eco-Glass™ is very durable and can be easily reapplied over time, meaning your window requires a lot less cleaning.

Product Specification

Brand Signature
Easy Clean Yes
External Upstand Size (W x L) 100 x 300cm
Finish Anthracite grey
Glazing Double glazed
Glazing Feature Toughened
Glazing Finish Clear
Glazing Guarantee 5 years
Guarantee 25 years
Hole In The Roof Size (W x L) 85 x 285cm
Inert Gas Argon
Low E Yes
Made To Measure Available Yes
Operation Fixed
Required Upstand Height 15cm
Required Upstand Width 7.5cm
Roof Pitch 10º
Size (W x L) 100 x 300cm
Toughened Yes
Type Flat glass rooflight
U-value 1.4 W/m²K

Product Reviews


All Sterlingbuild orders have FREE standard delivery when your order is over £100 + VAT.

However next day delivery will carry a small next day delivery charge which will be shown in the final shopping basket

Unfortunately additional delivery charges will apply if you live in the Scottish Highlands and UK islands. These delivery charges are based on additional costs from our national couriers.

If additional shipping fees apply, a member of our team will contact you before processing your order to let you know.

We will do our very best to make sure your delivery arrives by the date required, however manufacturer availability and delivery schedules cannot always guarantee this.

Should your estimated delivery date differ from that displayed on our website, one of our team will inform you by email or telephone

View full Delivery Information