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Mardome Trade Fixed Polycarbonate Rooflight

The Mardome Trade Fixed Polycarbonate Rooflight is available from 450mm to 2400mm in length and 450mm to 1800mm in width, providing a durable and cost-effective flat roof dome solution for high-performance natural daylight.

10-year warranty plus free UK mainland delivery.

 
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Ex.VAT £121.50
inc.VAT £145.80
inc.VAT £145.80

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The Mardome Trade Fixed Polycarbonate Rooflight is a high-quality flat roof dome rooflight designed to maximise natural daylight while delivering durability and thermal performance. Suitable for residential, commercial and educational buildings, this fixed dome rooflight is available in a wide range of sizes from 450mm to 2400mm in length and 450mm to 1800mm in width

Manufactured from impact-resistant polycarbonate, this flat roof skylight offers a cost-effective and robust alternative to glass rooflights. It can be installed onto a builders upstand or supplied with a 150mm or 300mm PVC kerb for improved waterproofing and ease of installation.

Available Sizes 

This Mardome Trade Fixed Polycarbonate Rooflight is available in square and rectangular configurations, including:

450mm x 450mm
600mm x 600mm
750mm x 750mm
900mm x 900mm
1000mm x 1000mm
1050mm x 600mm
1200mm x 600mm
1200mm x 900mm
1200mm x 1200mm
1500mm x 900mm
1500mm x 1200mm
1800mm x 900mm
1800mm x 1200mm
1800mm x 1500mm
2100mm x 1200mm
2100mm x 1500mm
2400mm x 1200mm
2400mm x 1500mm
2400mm x 1800mm

This wide size range ensures suitability for small utility spaces through to large commercial flat roof applications.

Glazing Options

Available in four glazing specifications:

1. Single skin polycarbonate rooflight – economical solution

2. Double skin polycarbonate rooflight – improved insulation

3. Triple skin polycarbonate rooflight – Improved thermal performance

4. Quad skin polycarbonate rooflight – maximum insulation within the range

Higher skin options improve thermal performance and reduce heat loss, making them suitable for heated spaces and energy-conscious projects.

Shape Options

Choose from:

1. Low Rise Dome

2. Low Rise Pyramid

Both designs provide strong weather resistance and excellent daylight distribution across flat roof areas.

Tint & Finish Options

Available in:

1. Clear polycarbonate (maximum light transmission)

2. Opal finish (diffused light, reduced glare)

3. Patterned finish (increased privacy)

Kerb & Installation Options

Supplied either:

-  For installation onto a builders upstand

-  With a 150mm waterproofing height PVC kerb

-  With a 300mm waterproofing height PVC kerb

-  Kerb options increase waterproofing height and simplify flat roof integration.

Fixed & Ventilation Options

Available as:

-  Fixed non-vented rooflight

-  Manual trickle vent rooflight

Manual vents provide background ventilation while maintaining security and weather performance.

Suitable For

-  Flat roof extensions

-  Kitchen and living extensions

-  Commercial buildings

-  Schools and healthcare buildings

-  Refurbishment and new build projects

The Mardome Trade Fixed Polycarbonate Rooflight offers a straightforward, reliable solution for bringing daylight into flat roof buildings. Built from high-quality, UV-stabilised polycarbonate, it balances performance and affordability without compromising on strength, thermal efficiency, or design flexibility.

Ideal for a wide range of sectors, the Mardome Trade Fixed Rooflight combines ease of installation, low maintenance, and proven durability.

Benefits

  • Fixed, non-opening design for maximum daylight with weathertight protection.
  • Manufactured from tough, impact-resistant polycarbonate for long-term durability.
  • UV-stabilised glazing to prevent yellowing and maintain clarity over time.
  • Available with single, double, or triple skin glazing to meet thermal efficiency needs.
  • Choice of clear, opal (diffused), or patterned tint options to suit privacy and lighting requirements.
  • Suitable for installation onto an existing builder’s upstand or supplied with an insulated kerb.
  • Lightweight for easy handling and installation.
  • Suitable for flat roofs and low-pitched roofs up to 15°.
  • Fully compliant with relevant UK building regulations for daylighting.
  • Manufactured in the UK for dependable quality and availability.

Features

  • Fixed (non-opening) polycarbonate rooflight for natural daylighting.
  • Glazing options: single skin, double skin, or triple skin polycarbonate.
  • Tint options: clear, opal, or patterned.
  • UV-resistant outer surface for long-lasting clarity and performance.
  • Available in a wide range of standard sizes to suit different project requirements.
  • Designed for use on flat roofs and low-pitch roofs (up to 15°).
  • Supplied for mounting on an existing upstand or with a Brett Martin insulated kerb.
  • Lightweight yet strong construction for simple installation.
  • Minimal maintenance required for long-term use.
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The Mardome Trade Fixed Polycarbonate Rooflight is designed for quick and secure installation onto flat or low-pitch roofs. It can be mounted directly to a builder’s upstand or supplied complete with an insulated kerb, offering flexibility for different project requirements.

Installation Guidelines:

  • Suitable for installation onto existing builder’s upstands or with a supplied Brett Martin insulated kerb.
  • Ensure the upstand is correctly dimensioned, insulated, and weathered prior to installation.
  • Glazing must be correctly orientated, with the UV-resistant layer facing upwards (as marked).
  • When using direct-fix (sloping) method, refer to installation guide for appropriate fixings and sealing procedures.
  • Thermal fracture caution: Avoid placing blinds directly beneath the glazing; use light-coloured blinds positioned away from the rooflight to reduce risk of thermal stress fracture.
  • Minimum upstand height and slope should be checked per building regulations and installation guide recommendations.
For a full step-by-step installation guide for the Mardome Trade Fixed Polycarbonate Rooflight, watch the video below or download our installation guide here.

*Brett Martin Daylight Systems operates a policy of continuous product improvement and reserves the right to alter specifications at any time without notice. Every effort has been taken to ensure all details contained in this video are correct at the time of release but this video should be used only as a guide and does not in any way form part of a contract or warranty. It is the customer’s responsibility to ensure that the product is suitable for the actual conditions of use, which are beyond the control of Brett Martin Daylight Systems.

How Your Mardome Rooflight Is Delivered

  • Delivered kerbside by the Brett Martin transport fleet
  • Glass and frame delivered together on an A-frame
  • Driver can assist with unloading if required
  • Sacrificial foam runners protect the glass during unloading
  • The A-frame is removed by the driver after delivery

Important: Please ensure someone is present on the day of delivery to help unload the rooflight from the lorry.

Delivery Times

Standard Trade Fixed rooflights delivered within 1–2 working days. Free UK mainland delivery.

Orders placed before 12 noon (Monday to Friday) are prioritised for dispatch.

Delivery Cost

Delivery is free to all UK mainland addresses.

For non-mainland and remote postcodes, please contact us.

Excluded Delivery Postcodes

We currently do not deliver to the following areas without prior arrangement:

Scotland, Northern Ireland, Channel Islands & Remote Areas

HS, IM, IV, ZE, BT, KA27–28, KWA, PA20–49, PH17–50, PO30–40, TR21–25, LL58–78

Contact our team to check if delivery to your area can be arranged.

Contact Us

Email: info@daylightsystems.com
Phone: +44 (0)24 7660 2022

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