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Mardome Trade Dome Rooflight

Mardome Trade Rooflight

Mardome Trade is the standard specification dome unit in the Mardome dome rooflights range. Providing stylish, contemporary looks as standard and excellent insulation, triple skin Mardome Trade rooflights achieve a centre pane U-value of 1.8 W/m²K with options to reduce Ud-value to as low as 0.95W/m²K.  Designed with features to ensure quick and easy installation Mardome Trade is the first choice roof dome for flat roofs with a range of added extras to choose from including kerb options to suit every new build or refurbishment project, and, for convenience a selection of popular sizes for next day delivery.


Mardome Trade Features and Options


Available in standard sizes from 450x450mm up to 2400x1800mm with a choice of low rise dome or optional low rise pyramid shaped glazing units. For the full range of sizes download the Mardome brochure or email for further information.

Mardome Trade has a range of kerb options available for all new build and refurbishment projects.  Where no existing kerb is available the Mardome white multiwall PVC kerb, in two height options, is available to match standard dome sizes.  A direct fix kerb is also available for fitting to a builders upstand.  For full details please refer to the Mardome Kerb Options factsheet.

  • Mardome standard kerb (150mm waterproofing height) - kerb profile varies with specification
  • Mardome tall kerb (300mm waterproofing height)
  • Direct fix kerb (for fixing to builders up stand)
  • Kerb adaptor (for fitting standard domes to non-standard builders upstands)
  • Mardome soaker (for fitting to profiled metal roof) 


Mardome Trade Features

Maximum Daylight

  • Almost vertical kerb walls allow a larger glazing area for more natural daylight

Concealed Components

  • Actuators and powered opening components completely concealed within the kerb

Internal Finish

  • Kerb is supplied pre-finished internally in white PVC

Multiwall PVC Kerb;

  • Thermally efficient triple wall structure improves insulation
  • Manufactures from PVC which is light in weight yet robust and resilient to damage


Light Transmission

  • Glazed with Marlon FSX Longlife polycarbonate and available in double, triple and quad skin units depending on the level of thermal insulation required
  • *Double glazed argon filled glass inner glazing - improved Ud-values, acoustics and aesthetics
  • 25mm structured polycarbonate inner glazing - improved thermal performance

*This option is not available with the access hatch option and limits other opening options, depending on size.

Tint Lighting Effect Light Transmission (%) DIN 5036
Double Skin Triple Skin Quad Skin
Clear High visibility 85% 78% 72%
Textured Privacy 78% 72% 66%
Bronze Solar control 39% 36% 33%
Opal Diffused light & solar control 35% 32% 30%

Thermal Efficiency

Mardome Trade Glazing Type Centre Pane U-value* (W/m2K)
Ud-Value# (W/m2K)
600 x 600mm 2400 x 1800mm
Double Skin Polycarbonate




Triple Skin Polycarbonate




Quad Skin Polycarbonate




Structured Polycarbonate Inner Glazing




Argon Filled Glass Inner Glazing~



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

#Ud-value is a measure of the thermal efficiency of the whole rooflight (calculated in accordance with NARM Technical Document NTD2).

~Glass glazing option is not available with the access hatch option and limits other opening options depending on size.


  • Trickle Vents (Manual) - Standard Spec
  • Automatic (Humidity Controlled) - Superior Spec
  • Purge ventilation - manual or powered opening domes
  • High extraction ventilation - powered and integrated into kerb*


  • Manual opening (with optional extension pole)
  • Mains powered opening with optional remote control and rain sensor
  • Solar powered opening with optional rain sensor and thermostat control#
  • Access hatch - lockable from the inside, this gas strut assisted opening unit can be used to gain access to the roof, used in conjunction with a suitable ladder/other means of access (not supplied)

* Not available on all dome sizes and only available on non-opening variants

# Not available with glass inner glazing option 

Trickle Ventilation                      High Extraction Ventilation

Mardome Trade Trickle Ventilation       Mardome Trade Kerb Extraction Ventilation


Powered Opening                Solar Powered Opening                

       Mardome Trade Solar Powered Opening

Security Grille

Optional steel security grille with white powder coated finish and manufactured to suit the size of the dome can be supplied for fitting beneath the kerb foot for additional security.

Powered Pleated Blinds

A range of powered pleated blinds are available for Mardome Trade domes.

Security Grille                         Powered Pleated Blinds

Mardome Trade Secuity Grille    Mardome Trade Powered Pleated Blinds

Manual Opening Pole

2m and 3m telescopic opening poles for use with manual opening domes.

Mardome Trade Opening Pole


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