Polycarbonate Dome Only Roof lights – Mardome Reflex


Please Ensure Sizes Ordered Are Correct – Sizes Cannot be Changed Once The Order Is Processed.

This item is made to order
All prices are subject to 20% VAT

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SKU: tg0011-8-1 Category:
UK mainland delivery
Great U values
Fast delivery
Latest design avoids cold spots and minimises the risk of condensation
Tamper Proof Fixings Supplied as standard
Available in Single Double & Triple Skins

If you’re looking for increased natural light for your modern building then Mardome Reflex polycarbonate glazing-only dome rooflights are ideal for flat roofs. The dome has a low rise and flexible fixing positions that are designed to help overcome the challenges associated with roofing refurbishment projects.

Using Marlon FSX Longlife polycarbonate, the unit offers more strength than glass. It is resistant to breakages as well as challenging weather conditions, making this unit reliable and safe.

It has been designed to fit on a builders upstand that is weathered and 150mm high with an ideal width of 75mm although it can work with custom width upstands. Available options include single, double and triple skin, as well as Opal, Clear, Patterned and Bronze finishes, are also available to choose.

They are supplied undrilled and come with a self-adhesive foam sealant, sealant tape, weathertight washers as well as cover plugs. All undrilled fixing flanges are supplied, providing a level of flexibility when it comes to fixing to current builder’s upstands. They are all designed in accordance with the ISO9001 approved quality system.

Measuring & Installation Guide

Please see fitting instructions below and downloadable PDF link at the bottom of this page and product data sheet.

This product fits to an existing kerb. 70mm or 100mm wide fixing flange which is supplied undrilled, for effective, custom fitting.

The Mardome Reflex dome only unit fits directly on to the builders upstand. If your external upstand size with finished roofling material is 1200mm x 1200mm then you would need to buy the 1200mm x 1200mm unit from the drop down menu on our website. The unit supplied has a built in tolerance to allow for small differences with the kerb or uneven roofing material as shown below.

Acceptable tolerance:

  • 70mm flange option = dome size +18/-60mm
  • 100mm flange option = dome size +18/-120mm

The above tolerances demonstrate if you purchase a 900mm by 900mm size from our drop down menu, this would be the size shown above of your external upstand width. As an example, if you selected the 70mm wide flange option this would work even if the external kerb dimensions were between 918mm to 840mm.

TB185 Mardome Reflex or Circular Installation(Click here to view PDF)

TB201 Datasheet Mardome Reflex and Circular products(Click here to view PDF)

Technical Information

Glazing details:

*Centre pane U-value is a measure of the thermal efficiency of the glazing type.

Part L Building Regulations require a U-value of at least 2.2W/m2K: Brett Martin Daylight Systems recommend the use of at least triple skin rooflights in all applications


Choice of low rise dome or pyramid outer shape providing a contemporary external appearance


The table below shows the light transmission properties of the Reflex polycarbonate rooflight.

Clear – high visibility

  • Maximum light transmission
  • Maximum clarity of vision of views and objects through the dome

Opal – diffused light and solar control

  • Combines privacy with high levels of diffused light transmission
  • Prevents solar glare and reduces solar heat gain
  • Impairs vision of views and objects through the dome

Patterned – privacy

  • Combines privacy with high levels of light transmission
  • Diffused daylight
  • Impairs vision of views and objects through the dome

Bronze – solar control

  • Reduces solar glare and heat gain
  • Provides a lower light transmission


The product is supplied with a 10 year manufacturer’s warranty.

Delivery & Lead Time

All sizes below are on a 2-3 working day lead time. For all other sizes, lead time on application. Usually, other sizes will be 3-7 working days but this depends workload. We do not recommenced arranging equipment and installation until the item has been delivered.

450×450, 600x600m, 750×750, 900×600, 900×750, 900×900, 1050×600, 1050×750, 1050×1050, 1200×600, 1200×900, 1200×1200, 1350×1050, 1350×1350, 1500×1050, 1500×1500, 1800×900, 1800×1200, 1800×1800

Please note if 100mm flange is selected the product will be on a 7-working day lead time

Please ensure labour is on site to sign for and off load the product from the vehicle as the driver from the transport company is not insured to deliver inside the property.