2m x 4m Made to Measure Flat Roof Glass Rooflight

Bring natural daylight into a large residential or commercial space with our 2m x 4m Made to Measure Flat Roof Glass Rooflight, manufactured to order in Bristol.

Available in custom sizes up to approximately 2000mm x 4000mm internal frame size, this substantial rooflight provides up to approximately 8m² of internal rooflight area. Its large rectangular format makes it particularly suitable for extensions, open-plan living spaces, commercial buildings, offices and other large flat roof projects.

Large 2m x 4m Made-to-Measure Glass Rooflight

Each rooflight is made to measure, allowing the dimensions to be manufactured specifically for your project rather than restricting you to standard stock sizes.

• Maximum Internal Frame Size: Approximately 2000mm x 4000mm
• Maximum Internal Area: Approximately 8m²
• Application: Residential & Commercial Flat Roofs
• Standard Glass: Low-E Toughened Argon-Filled Glass
• Double & Triple Glazing: Available
• Self-Cleaning Glass: Optional
• Blue Tint Glass: Optional
• Welded Cills: Optional
• Guttering: Optional
• Manufactured: Bristol

Large Glass Rooflight for Residential Extensions

A 2m x 4m glass rooflight can introduce a substantial amount of natural daylight into a large extension, particularly where the centre of the room is positioned away from conventional windows and external doors.

The long rectangular design works particularly well above open-plan kitchens, dining areas and living spaces, creating an impressive overhead glazed feature.

Commercial Flat Roof Glass Rooflight

The larger dimensions also make this rooflight suitable for a variety of commercial flat roof applications where a substantial area of natural overhead lighting is required.

Potential applications include:

• Offices
• Commercial buildings
• Reception areas
• Showrooms
• Retail premises
• Workspaces
• Communal areas
• Large residential developments

Important Rooflight Measuring Information

The dimensions entered when ordering are the internal frame measurements.

The surrounding profiles are approximately 70mm wide, meaning approximately 70mm must be added to each side when calculating the overall external frame dimensions.

2000mm x 4000mm Rooflight Size Example

• Internal Frame: 2000mm x 4000mm
• Approx. External Frame: 2140mm x 4140mm

Where optional welded cills are selected, additional allowance must be made for the overall external dimensions.

Please check all measurements carefully before constructing the roof opening, kerb or supporting structure.

Low-E Toughened Glass Rooflight

The standard rooflight is supplied with Low-E toughened, argon-filled glass, combining safety, natural daylight and good thermal performance.

Low-E glazing incorporates a specialist coating designed to reduce heat transfer through the glass, while the argon-filled sealed units further improve thermal efficiency.

Double or Triple Glazing Options

Select the glazing specification best suited to your project, with double and triple-glazed options available depending on the selected configuration.

• Low-E Toughened Glass
• Argon-Filled Sealed Units
• Double Glazing
• Triple Glazing
• Self-Cleaning Glass Upgrade
• Blue Tint Glass Upgrade

Self-Cleaning Glass Option

An optional self-cleaning glass upgrade is available and can be particularly useful with a large rooflight where regular access to the external glass surface may be difficult.

Blue Tint Glass Option

Blue tint glazing is also available where a different appearance to standard clear roof glazing is preferred.

Simply select the required glass specification when configuring your made-to-measure rooflight.

Strong Roof Glazing Bar System

The rooflight uses a robust roof glazing bar system designed to securely support the glazing and create a strong, durable roof structure.

This system allows large rooflights to be manufactured to the required dimensions while providing a practical system for assembly and installation.

Rooflight Frame Colour Options

Choose from a selection of frame and roof bar finishes to coordinate the rooflight with the surrounding property:

• White
• Rosewood
• Mahogany
• Light Oak

Aluminium roof bars are also available in selected Light Oak, Mahogany and Rosewood finishes.

Optional Hunter Regency Guttering

An optional Hunter Regency guttering package can be supplied where rainwater collection is required around the rooflight.

Depending on the selected configuration, components can include:

• Hunter Regency guttering
• Downpipes
• Downpipe shoes
• Gutter spigots
• 90° gutter angles
• Traditional gutter brackets

Optional Cresting and Finials

Optional cresting and finials can be added where a more decorative or traditional appearance is required.

For modern extensions and commercial projects, these can simply be omitted to maintain a cleaner contemporary appearance.

Flat-Packed or Part-Assembled Rooflight

Select the assembly option most appropriate for your project and site access:

• Flat-Packed: Supplied ready for assembly on site.
• Pre-Assembled to Glazing Stage: Main roof structure assembled before delivery, with the glass and finishing trims installed on site.

Large Rooflight Delivery

A 2m x 4m rooflight is a large product, and suitable consideration must be given to delivery, unloading and safe handling of the individual components.

Please ensure there is adequate vehicle access to the delivery address and sufficient personnel available to safely unload the delivery.

Made-to-Measure Glass Rooflights Bristol

Our made-to-measure flat roof glass rooflights are manufactured in Bristol and supplied to homeowners, builders, contractors, developers and commercial customers.

The 2m x 4m format is particularly suited to customers looking for a large glass rooflight for an extension or commercial flat roof project.

We supply throughout Bristol and the surrounding area, with delivery also available to customers elsewhere in the UK.

2m x 4m Glass Rooflight Specification

• Product: Made to Measure Flat Roof Glass Rooflight
• Maximum Internal Size: Approximately 2000mm x 4000mm
• Maximum Internal Area: Approximately 8m²
• Approx. External Frame: 2140mm x 4140mm
• Application: Residential & Commercial Flat Roofs
• Standard Glass: Low-E Toughened Argon-Filled Glass
• Glazing: Double or Triple Glazing Options
• Glass Upgrades: Self-Cleaning or Blue Tint
• Frame Colours: White, Rosewood, Mahogany or Light Oak
• Welded Cills: Optional
• Guttering: Optional Hunter Regency System
• Cresting & Finials: Optional
• Assembly: Flat-Packed or Pre-Assembled to Glazing Stage
• Manufacture: Made to Measure in Bristol

Ordering Your 2m x 4m Glass Rooflight

Enter the required internal frame dimensions and select your preferred glazing, frame colour and optional extras.

Because every rooflight is manufactured specifically for your order, please carefully check all dimensions and specifications before ordering and before constructing the supporting roof opening or kerb.

Installation and Weatherproofing

Roof felt, flashing and surrounding weatherproofing should be correctly completed as part of the installation. The rooflight must be properly integrated with the supporting structure and surrounding flat roof system to provide a secure and weather-resistant finished installation.