2.5m x 3.5m Made to Measure Flat Roof Glass Rooflight

Bring exceptional levels of natural daylight into a large residential or commercial space with our 2.5m x 3.5m Made to Measure Flat Roof Glass Rooflight, manufactured to order in Bristol.

Available in custom sizes up to approximately 2500mm x 3500mm internal frame size, this substantial rooflight can provide up to approximately 8.75m² of internal rooflight area. It is particularly suited to large extensions, open-plan living areas, commercial buildings, offices and other projects requiring a significant glazed roof feature.

Large 2.5m x 3.5m 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 3500mm
• Maximum Internal Area: Approximately 8.75m²
• 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 Extensions

A 2.5m x 3.5m glass rooflight creates a substantial overhead glazed area, making it an excellent option for larger extensions where natural daylight needs to reach deep into the room.

It can work particularly well above a large kitchen island, dining area or central open-plan living space, helping illuminate areas positioned away from conventional windows and external doors.

Residential and Commercial Applications

With an internal rooflight area of up to approximately 8.75m², this model is suitable for substantial domestic projects as well as commercial buildings.

Typical applications include:

• Large kitchen extensions
• Open-plan kitchen and dining areas
• Living rooms
• Garden rooms
• Large single-storey extensions
• Commercial buildings
• Offices and workplaces
• Reception areas
• Showrooms
• Retail premises
• New-build developments

Important Rooflight Measuring Information

The dimensions entered when ordering are the internal frame measurements.

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

2500mm x 3500mm Rooflight Size Example

• Internal Frame: 2500mm x 3500mm
• Approx. External Frame: 2640mm x 3640mm

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

Please check all dimensions carefully before constructing the supporting roof opening or kerb.

Low-E Toughened Glass

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

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

Double or Triple Glazing

Depending on the selected configuration, the rooflight can be supplied with double or triple glazing, allowing the glass specification to be selected to suit the requirements of the project.

• 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 is particularly worth considering on a rooflight of this size, where regular access to the external surface of the glazing may be difficult.

It can help reduce routine cleaning requirements on large residential and commercial rooflight installations.

Blue Tint Glass Option

Blue tint glass is available as an alternative glazing option, providing a distinctive appearance while still allowing natural daylight into the room below.

Strong Roof Glazing Bar System

The rooflight incorporates a robust roof glazing bar system designed to securely support the glazing and provide a durable finished roof structure.

On a rooflight of this size, the glass is divided into manageable sections and supported by the glazing bar structure, creating the large overall glazed area while maintaining the necessary support.

Choice of Rooflight Colours

Select from a range 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 where rainwater collection is required around the rooflight.

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

Alternatively, they can be omitted where a simpler contemporary appearance is preferred.

Flat-Packed or Part-Assembled

Select the assembly option best suited to your installation and site access:

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

Delivery of Large Made-to-Measure Rooflights

A 2.5m x 3.5m rooflight is a substantial made-to-measure product. Please consider delivery vehicle access, component handling and unloading before placing your order.

Suitable assistance must be available to safely unload and move the rooflight components on delivery.

Made-to-Measure Glass Rooflights Bristol

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

Manufacturing each rooflight to order allows you to choose the required dimensions, glazing specification, finish and optional accessories for your individual project.

We supply customers throughout Bristol and the surrounding area, with delivery also available to other areas of the UK.

2.5m x 3.5m Glass Rooflight Specification

• Product: Made to Measure Flat Roof Glass Rooflight
• Maximum Internal Size: Approximately 2500mm x 3500mm
• Maximum Internal Area: Approximately 8.75m²
• Approx. External Frame: 2640mm x 3640mm
• 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 3.5m Glass Rooflight

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

Because every rooflight is manufactured specifically for your order, all measurements should be carefully checked before ordering and before constructing the supporting roof opening or kerb.

Installation and Weatherproofing

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