2.5m x 4.5m Made to Measure Flat Roof Glass Rooflight

Bring exceptional levels of natural daylight into a large extension or commercial building with our 2.5m x 4.5m Made to Measure Flat Roof Glass Rooflight, manufactured to order in Bristol.

Available in custom sizes up to approximately 2500mm x 4500mm internal frame size, this substantial rooflight can provide up to approximately 11.25m² of internal rooflight area. It is an excellent choice for large open-plan extensions, commercial buildings, offices, showrooms and development projects where a major glazed roof feature is required.

Large 2.5m x 4.5m Made-to-Measure Glass Rooflight

Every 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 2500mm x 4500mm
• Maximum Internal Area: Approximately 11.25m²
• 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

11.25m² Glass Rooflight for Large Spaces

At its maximum dimensions, this rooflight creates approximately 11.25 square metres of internal rooflight area, providing an impressive source of overhead natural daylight.

The long 4.5m dimension makes this model particularly suitable for larger rooms and buildings where daylight needs to be distributed across an extended area.

Ideal for Large Residential and Commercial Projects

A 2.5m x 4.5m glass rooflight can create a striking feature above a large kitchen, dining area or open-plan living space, allowing daylight to reach areas positioned away from conventional windows and doors.

The substantial dimensions also make this rooflight well suited to commercial applications including:

• Large kitchen extensions
• Open-plan kitchen-diners
• Large living spaces
• Garden rooms
• Single-storey extensions
• Commercial buildings
• Offices and workplaces
• Reception areas
• Showrooms
• Retail premises
• Restaurants and hospitality spaces
• Property developments
• New-build projects

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.

2500mm x 4500mm Rooflight Size Example

• Internal Frame: 2500mm x 4500mm
• Approx. External Frame: 2640mm x 4640mm

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

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

Low-E Toughened Glass

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

The Low-E coating is designed to reduce heat transfer through the glazing, while the argon-filled sealed units provide additional insulation.

Double and Triple Glazing Options

Depending on your selected configuration, the rooflight can be supplied with double or triple glazing.

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

Self-Cleaning Glass for Large Rooflights

An optional self-cleaning glass upgrade is available and can be particularly beneficial on a rooflight of this size.

With over 11m² of potential rooflight area, reducing the amount of routine external cleaning required can be particularly useful where access to the roof glazing is difficult.

Blue Tint Glass Option

Blue tint glass is also available, providing an alternative appearance to standard clear roof glazing while allowing natural daylight into the space below.

Strong Multi-Panel Roof Glazing System

A rooflight measuring up to 2.5m x 4.5m requires a substantial supporting structure. The glazing is divided into individual sections and supported by a strong roof glazing bar system.

This allows a very large overall glazed roof area to be created while securely supporting the individual glass units.

Choice of Rooflight Colours

Select from a choice of profile and roof bar finishes to coordinate the rooflight with your 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 system can be supplied around the rooflight where rainwater collection is required.

Depending on the selected configuration, the guttering package can include:

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

Optional Cresting and Finials

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

For contemporary residential extensions and commercial buildings, these can simply be omitted for a cleaner appearance.

Flat-Packed or Part-Assembled Rooflight

Select the assembly option most suitable for your installation and available site access:

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

Delivery and Handling

A 2.5m x 4.5m rooflight is a very large made-to-measure product. Delivery access, unloading and the safe handling of the components must therefore be considered before ordering.

Please ensure there is suitable vehicle access to the delivery address and sufficient assistance available to safely unload and move the rooflight components.

Made-to-Measure Glass Rooflights Bristol

Our made-to-measure flat roof glass rooflights are manufactured in Bristol for homeowners, builders, installers, architects, property developers and commercial customers.

Manufacturing each rooflight to order allows the dimensions, glazing specification, finish and optional accessories to be selected for the individual project.

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

2.5m x 4.5m Glass Rooflight Specification

• Product: Made to Measure Flat Roof Glass Rooflight
• Maximum Internal Size: Approximately 2500mm x 4500mm
• Maximum Internal Area: Approximately 11.25m²
• Approx. External Frame: 2640mm x 4640mm
• 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 2.5m x 4.5m Glass Rooflight

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

Because every rooflight is manufactured specifically for your order, please carefully check all measurements 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 supported and integrated with the surrounding flat roof system to create a secure and weather-resistant finished installation.