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Brett Martin Flat Glass Fixed Rooflight

Sleek, secure, and ready to sit directly on your builder’s upstand.

This product is made to order

Original price £519.99 - Original price £1,359.99
Original price
£519.99
£519.99 - £1,359.99
Current price £519.99
Size (mm): 600 x 600
Colour: Black
SKU MDM-FB-BU060060FIX-X-FA

Description

Let natural light transform your space with the flat glass fixed roof light. It's a low-profile, secure, and thermally efficient glazing system designed for flat roofs. Whether you’re upgrading a home extension, adding light to a commercial property, or managing a large-scale build, this rooflight delivers on both performance and style, all at a price that works for both residential and trade customers.

Made by Brett Martin, one of the UK’s most trusted manufacturers, this fixed rooflight offers a contemporary finish with minimalist framing, exceptional insulation, and a laminated inner pane for added safety and peace of mind. It’s ideal for projects where ventilation isn’t required but maximum daylight is essential.

With a range of standard sizes and fast delivery on selected options, it’s the go-to rooflight for installers, architects, contractors, and homeowners who value quality and simplicity.

Key Features at a Glance:

  • Contemporary slimline design with a thermally broken, powder-coated aluminium frame (RAL 7016 Anthracite Grey)
  • Fixed, non-opening unit – ideal where ventilation is not required
  • Designed for direct fitting to a structural, insulated builder’s upstand
  • Laminated inner glass with soft coat Low-E and PVB interlayer for enhanced safety and thermal performance
  • 90% argon-filled double glazed unit with warm-edge spacer bar
  • Centre pane U-value of 1.1 W/m²K; whole unit U-value as low as 1.46 W/m²K (dependent on size)
  • Non-fragile to CWCT TN67 (Class 1) and ACR[M]001 (Class B)
  • Secured by Design accredited with P4A security rating to EN 356
  • Tested for acoustic performance – achieves 38 dB Rw noise reduction
  • Supplied with all fixings and instructions, delivered flat-packed for efficient on-site handling
  • Fast UK dispatch available – many sizes shipped within 48 hours

Whether you’re letting light into a kitchen, hallway, stairwell or office, the flat glass fixed rooflight from Brett Marting is a simple, elegant solution you can rely on.

Technical Details

Specification Detail
Application Flat roofs. suitable for all modern building types
Operation Fixed (non-opening)
Outer Pane 6mm clear toughened glass
Inner Pane 7.5mm laminated Low-E glass with 1.5mm PVB interlayer (varies by size)
Spacer Bar Warm-edge, 90% argon-filled cavity
Thermal Performance Centre pane U-value: 1.1 W/m²K
Whole unit U-value: as low as 1.46 W/m²K
Acoustic Performance 38 dB Rw airborne sound insulation
Security Rating Secured by Design accredited, P4A resistance class to EN 356
Non-Fragility Tested to CWCT TN67 (Class 1) and ACR[M]001 (Class B)
Frame Material Thermally broken aluminium, powder-coated RAL 7016 (Anthracite Grey)
Roof Compatibility Flat roofs with pitch between 2°–15°
Warranty 10-year product warranty (5 years on glazing units, 1 year on actuators)
Delivery Time 48-hour dispatch available on selected sizes

Measuring for Your Rooflight

This Brett Martin flat glass top-only unit is designed to fit directly onto a builder’s kerb. When selecting your size, simply measure the external weathered dimensions of your kerb.

Example: If your external kerb size is 600mm x 600mm, you’ll need the 600mm x 600mm rooflight.

Installation Requirements:

  • Suitable for flat roofs with a pitch between 2° and 15°>/li>
  • Builder’s kerb should be:
    • 75mm to 110mm wide
    • 150mm high (measured at the lowest point)

Need help confirming your kerb size or pitch? Our team is happy to assist, just get in touch before ordering.

Product Documents

Product Overview

Product Care

Installation Guide

Technical Datasheet

Specification

Delivery & Lifting Information

We aim to dispatch standard sizes within 2–3 working days to mainland UK addresses.

Important: Off-loading is the responsibility of the customer. Please ensure you have adequate manpower or equipment on-site, especially for larger units.

To help you prepare, here’s a quick breakdown of glass and pallet weights by rooflight size:

Rooflight Size Glass Weight (kg) Pallet Weight (kg) Total Weight to Lift (kg)
600 x 600mm 17.4 29.6 47.0
750 x 750mm 25.8 29.6 55.4
600 x 900mm 25.0 29.6 54.6
900 x 900mm 36.0 45.1 81.1
1000 x 1000mm 43.8 45.3 89.1
600 x 1200mm 32.6 45.1 77.7
900 x 1200mm 47.1 45.1 92.2
1200 x 1200mm 61.6 45.1 106.7
1000 x 1500mm 64.1 45.3 109.4

Pre-Order Technical Notice