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Polycarbonate Dome Rooflights

Mardome Polycarbonate Dome Rooflights

Our range of Mardome polycarbonate Dome rooflights by Brett Martin are tough plastic rooflights designed primarily for commercial and industrial buildings where a lightweight, impact-resistant solution is required. Suitable for flat and low-pitch roofs, these rooflights are widely specified for schools, hospitals, warehouses, and retail buildings, as well as communal areas within residential developments.

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Mardome Trade Fixed Polycarbonate Dome Rooflight

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The Mardome Trade Fixed Polycarbonate Dome Rooflight is a durable and cost-effective flat roof dome designed to deliver high-performance natural daylight for residential and commercial flat or low-pitched roofs.

10-year warranty plus free UK mainland delivery.

 

From £121.50
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Mardome Trade Opening Polycarbonate Dome Rooflight

The Mardome Trade Opening Polycarbonate Dome Rooflight is a durable opening flat roof dome designed to provide natural daylight and controlled ventilation for commercial and industrial flat or low pitched roofs. It is suitable for projects where airflow is required alongside reliable daylight performance.

10-year warranty plus free UK mainland delivery.

 

From £317.25
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Mardome Access Hatch Polycarbonate Dome Rooflight

The Mardome Access Hatch Polycarbonate Dome Rooflight provides daylight and practical rooftop access, offering a secure and easy-to-use solution for flat and low-pitched roofs.

10-year warranty plus free UK mainland delivery.

 

From £492.75
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Mardome Smoke Vent AOV Polycarbonate Dome Rooflight

Polycarbonate automatic opening rooflight designed for smoke and heat exhaust ventilation. Suitable for flat and low-pitch roofs up to 15°. Available in standard sizes from 1050 × 1050 mm to 1800 × 1800 mm, with a range of glazing, tint, kerb, and actuator options.

10-year warranty plus free UK mainland delivery.

 

From £1436.25
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Mardome Circular Polycarbonate Dome Rooflight

Bring natural light and modern design to your space with the Mardome Circular Polycarbonate Dome Rooflight, a stylish and durable dome solution, ideal for flat roofs and low-pitch applications.

10-year warranty plus free UK mainland delivery.

 

From £118.50
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Mardome Reflex Polycarbonate Dome Rooflight

Enhance your space with the Mardome Reflex Polycarbonate Dome Rooflight, a robust, dome-shaped rooflight designed for easy installation over existing openings, bringing natural light and durability to any flat roof.

10-year warranty plus free UK mainland delivery.

 

From £121.50
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Brighter Spaces with Polycarbonate Dome Rooflights

Polycarbonate dome rooflights are designed for real life, built to last, easy to fit, and made to bring consistent daylight into the spaces you use most.

Our Mardome polycarbonate rooflight range includes fixed rooflights, opening rooflights, access hatch rooflights, smoke vent AOV rooflights, circular rooflights, and Reflex rooflights, providing options for a wide range of building layouts and regulatory requirements. These rooflights are commonly specified in high-use environments such as schools, hospitals, warehouses, factories, and retail buildings, where a durable rooflight is required across large roof areas.

Units are available in multiple sizes, with single, double, triple, or quad glazing configurations to suit different thermal and light transmission requirements. Tint options include clear, opal, and patterned finishes, allowing control of glare and privacy in areas such as classrooms, corridors, stairwells, plant rooms, and storage spaces.

Rooflights can be supplied as low rise domes or low rise pyramids and installed on GRP kerbs, builders upstands, or waterproofing PVC kerbs to suit a variety of roof constructions. Ventilation options include unvented units and manual trickle vents, supporting airflow in frequently occupied or service areas where natural ventilation is required.

All Mardome polycarbonate rooflights are supplied with a 10-year manufacturer’s warranty and are designed to be compliant with relevant UK building regulations, making them suitable for both new build and refurbishment projects.

Frequently Asked Questions

What size should I order? How do I measure?
To determine the correct size, measure the external dimensions of your existing upstand or the internal dimensions of the roof opening if you're ordering with a PVC kerb.
Are polycarbonate rooflights suitable for a flat roof?
Yes, the Mardome Polycarbonate range is specifically designed for flat roofs and low-pitched roofs (up to 15°), making it ideal for these applications.
Do I need a kerb for polycarbonate rooflights?
Not necessarily. Mardome Polycarbonate rooflights are highly configurable to suit a range of applications. If the unit is specified to fix directly to the roof deck, it will be supplied with a PVC kerb. If specified to suit a builder’s upstand, it won’t include a PVC kerb—unless ventilation or opening options are selected, in which case a PVC subframe will be provided to fix to the top of the upstand.
Does it comply with building regulations?
Mardome Polycarbonate rooflights can be specified to meet building regulations. Brett Martin recommends consulting your local building control authority before ordering to ensure compliance with your intended application.
What are the U-values?
Overall U-values depend on the size and specification of the rooflight. Specific values are available on request.

Centre pane U-values by glazing type:
Single skin: 5.5 W/m²K
Double skin: 2.7 W/m²K
Triple skin: 1.8 W/m²K
What are the glazing options?
You can choose from clear, opal (diffused), and patterned tint glazing options.
How do I install it?
Installation is straightforward. The Mardome dome is delivered with all required fixings and an installation guide. For additional help, installation videos are available on the Brett Martin YouTube channel: Brett Martin Installation Videos.
Can it be installed on a pitched roof?
Yes, Mardome Polycarbonate rooflights can be installed on roofs with pitches up to 15°, offering flexibility in application.
What's the difference between single, double, and triple skin?
The difference between single, double, and triple skin relates to the number of polycarbonate layers in the dome. Triple skin provides the best thermal performance and is recommended for compliance with Part L of building regulations.
Will a polycarbonate dome make my room cold?
No. When correctly specified, a polycarbonate dome will not make your room feel cold. It also enhances natural daylight in the room below.
Do I need planning permission?
In most cases, planning permission is not required for rooflight installation. However, Brett Martin advises consulting your local planning authority before proceeding.
Does it come with a warranty?
Yes, the Mardome Range comes with a 10-year manufacturer’s warranty for peace of mind. A sample warranty document is available here.