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Polycarbonate Dome Rooflights

Polycarbonate Dome Rooflights

Discover our range of lightweight, impact-resistant polycarbonate rooflights, a tough plastic glazing option designed to let in natural light and provide ventilation or roof access where needed. Featuring trusted Mardome polycarbonate rooflights by Brett Martin — all supplied directly from the manufacturer, not a third-party reseller.

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Mardome Trade Fixed Polycarbonate Rooflight

The Mardome Trade Fixed Polycarbonate Rooflight delivers high-performance natural daylight with a cost-effective, durable, and easy-to-install solution for flat and low-pitched roofs.

From £121.50
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Mardome Trade Opening Polycarbonate Rooflight

The Mardome Trade Opening Polycarbonate Rooflight offers controllable ventilation and high-impact daylighting for flat and low-pitched roofs, with durable, easy-to-operate design.

From £317.25
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Mardome Access Hatch Polycarbonate Rooflight

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

From £492.75
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Mardome Smoke Vent AOV Polycarbonate Rooflight

The Mardome Smoke Vent (AOV) Polycarbonate Rooflight provides a certified smoke and heat exhaust ventilation (SHEV) solution, combining safety, natural light, and high-performance durability for flat and low-pitched roofs.

From £1436.25
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Mardome Circular Polycarbonate Rooflight

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

From £118.50
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Mardome Reflex Polycarbonate Rooflight

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

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.

Polycarbonate dome rooflights are a simple, reliable way to bring natural light into your space. Made from tough plastic, they’re lightweight, long-lasting, and quick to install.

Whether you’re working on a hallway, bathroom, utility room, or a larger commercial space, these units help brighten areas that are hard to light with windows.

The range includes fixed domes, opening models, access hatches, circular rooflights, and smoke vents(AOVs) each designed to meet specific requirements for light, ventilation, and safe roof access.

You’ll find trusted systems like Mardome polycarbonate rooflights from Brett Martin, all supplied directly from the manufacturer, no third-party resellers involved.

Why Buy Brett Martin Polycarbonate Rooflights from Daylight Systems

Daylight Systems is the official direct-to-consumer website owned and operated by Brett Martin – the manufacturer of the polycarbonate rooflights you see here. When you shop with us, you're not dealing with a third-party reseller, you're buying directly from the source.

This means you benefit from:

1. Expert advice from the people who make the product

2. Direct support with no middlemen

3. Custom options not always available elsewhere

4. Guaranteed authenticity and build quality

While prices may vary across the market, buying direct through Daylight Systems means peace of mind, with expert advice and full product support every step of the way.

Browse the full selection above to find the right polycarbonate rooflight for your project.

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.