Flat Roof Glass Skylight (Up to 2.0m x 4.5m) – Made to Measure with Optional Welded Cills & Guttering
- Brand: Master Plastics
- Product Code: SKY2.0X4.5
- Availability: In Stock
2m x 4.5m Made to Measure Flat Roof Glass Rooflight
Bring natural daylight into a large residential or commercial space with our 2m x 4.5m Made to Measure Flat Roof Glass Rooflight, manufactured to order in Bristol.
Available in custom sizes up to approximately 2000mm x 4500mm internal frame size, this substantial rooflight provides up to approximately 9m² of internal rooflight area. The large rectangular design makes it particularly suitable for open-plan extensions, commercial buildings, offices, reception areas and other substantial flat roof projects.
Large 2m 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 2000mm x 4500mm
- Maximum Internal Area: Approximately 9m²
- 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 2m x 4.5m glass rooflight can provide a substantial area of overhead glazing, making it particularly suitable for large extensions where natural daylight is an important part of the design.
The long rectangular proportions work particularly well above open-plan kitchens, kitchen islands, dining areas and living spaces, helping bring daylight into areas positioned away from conventional windows and external doors.
Commercial Glass Rooflight
With up to approximately 9m² of internal rooflight area, this larger format is also well suited to commercial properties where a substantial source of natural overhead daylight is required.
Typical applications can include:
- Large residential extensions
- Open-plan kitchens
- Kitchen-diners
- Living spaces
- Commercial buildings
- Offices
- Reception areas
- Showrooms
- Retail premises
- Communal areas
- 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.
2000mm x 4500mm Rooflight Size Example
- Internal Frame: 2000mm x 4500mm
- Approx. External Frame: 2140mm x 4640mm
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, providing a combination of natural daylight, safety and 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
Choose 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 for Large Rooflights
An optional self-cleaning glass upgrade is available and is particularly worth considering with a rooflight of this size, where regular access to the external glass surface may be difficult.
This makes self-cleaning glazing a useful option for large residential extensions and commercial rooflight installations.
Blue Tint Glass Option
Blue tint glazing is also available where a different appearance to standard clear roof glazing is preferred.
Select the required glass specification when configuring your made-to-measure rooflight.
Strong Roof Glazing Bar System
The rooflight incorporates a robust roof glazing bar system designed to securely support the glazing and create a strong, durable finished roof structure.
This system allows the rooflight to be manufactured to the required dimensions while providing a practical solution for assembly and installation.
Rooflight Frame Colour Options
Select from a choice 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 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, these can be omitted for a cleaner and more contemporary rooflight design.
Flat-Packed or Part-Assembled Rooflight
Choose the assembly option most appropriate for 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 a 2m x 4.5m Rooflight
This is a large made-to-measure rooflight, so suitable consideration must be given to delivery access, unloading and the safe handling of the 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 for homeowners, builders, contractors, property developers and commercial customers.
The 2m x 4.5m format is particularly suited to customers requiring a large glass rooflight for an extension or commercial flat roof.
We supply throughout Bristol and the surrounding area, with delivery also available to customers elsewhere in the UK.
2m x 4.5m Glass Rooflight Specification
- Product: Made to Measure Flat Roof Glass Rooflight
- Maximum Internal Size: Approximately 2000mm x 4500mm
- Maximum Internal Area: Approximately 9m²
- Approx. External Frame: 2140mm 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 2m x 4.5m Glass Rooflight
Enter the required internal frame dimensions and select the glazing, frame colour and optional extras required for your project.
Because every rooflight is manufactured specifically for your order, please carefully check all dimensions and configuration options 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 should be properly integrated with the supporting structure and surrounding flat roof system to provide a secure and weather-resistant finished installation.








