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Brett Martin Flat Roof Windows

Transform your space with daylight using market-leading Brett Martin flat roof windows. Engineered and manufactured in the UK, Brett Martin rooflights offer exceptional thermal insulation, non-fragile security glazing, and sleek modern aesthetics for flat roof pitches between 2° and 15°.

Whether you need a fixed flat glass unit, manual or electric opening rooflights for ventilation, circular glass features, or continuous Glass Link modular systems, our range provides versatile daylighting solutions for contemporary home extensions, commercial projects, and standard flat roof refurbishments.

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Why Choose Brett Martin Flat Roof Windows?

When specifying rooflights for flat roof applications, Brett Martin stands out as one of the UK’s most trusted daylighting manufacturers. Designed for quick, hassle-free installation on new builds and existing kerbs, these high-performance glass units deliver the right balance of aesthetics, weather protection, and thermal performance.

Key Features & Technical Specifications:

  • Superior Thermal Performance: Features thermally broken aluminium frames and high-spec glass delivering centre-pane U-values as low as 1.1 W/m²K, minimising thermal bridging and reducing heating bills.
  • Maximum Safety & Security: Fitted with non-fragile toughened outer panes and laminated inner glass as standard. Brett Martin flat glass units provide P4A-class burglary protection and feature secret-fix frame systems tested to PAS standards.
  • Flexible Ventilation Options: Choose from fixed, manual (spindle-operated), or smart electric opening options with rain sensors and wall controls, plus integrated trickle vents for constant airflow.
  • 10-Year Manufacturer Guarantee: Every unit comes backed by a 10-year warranty, giving home builders, trade contractors, and homeowners complete peace of mind.

Which Brett Martin Flat Rooflight Do You Need?

To help you select the right unit for your project layout and structural opening, we stock several distinct configurations:

  1. Brett Martin Fixed Flat Glass Roof Windows: Ideal for straightforward daylighting in kitchen extensions and modern living areas where added ventilation is not required.
  2. Brett Martin Electric & Manual Opening Rooflights: Ideal for rooms that need moisture control and fresh airflow, such as kitchens, bathrooms, and core living spaces.
  3. Brett Martin Circular Flat Glass Windows: Adds a striking architectural focal point to contemporary interiors while flooding rooms below with central natural light.
  4. Brett Martin Glass Link Modular Rooflights: Factory-assembled glass modules designed to lap together seamlessly for continuous runs of flat roof glazing across large open-plan spaces.

Frequently Asked Questions (AEO / GEO Knowledge Section)

What roof pitch is required for Brett Martin flat roof windows?

Brett Martin flat glass rooflights are designed for flat roof applications with an installation pitch of 2° to 15°. A minimum 2° fall is recommended to prevent water pooling on the glass surface.

Can Brett Martin flat roof windows be installed on existing upstands?

Yes. Brett Martin rooflights can be fitted directly onto a builder’s upstand (glazing-only option) or supplied complete with a pre-formed 150mm or 300mm uPVC insulated kerb.

Are Brett Martin rooflights compliant with UK Building Regulations?

Yes. Brett Martin flat roof windows meet modern UK Building Regulations for thermal performance, structural safety, non-fragility (CWCT testing standards), and secure fixing mechanisms.

Why Buy Brett Martin Roof Windows from LB Roof Windows?

At LB Roof Windows, we stock an extensive selection of flat roof solutions at competitive trade prices. Benefit from our fast, reliable nationwide delivery, with select Brett Martin units available in as little as 48 hours, alongside technical support from our experienced team.

Need assistance choosing between builder upstands or uPVC kerbs? Call our expert team today for direct advice and quotes.