Attractive and versatile architectural glazing with excellent weather resistance and durability. Marvault RL is widely specified for schools, public buildings and domestic projects where reliability is essential.

  • Versatile bespoke system can be linked into any configuration.
  • Maximum span of approximately 5 metres.
  • Two profiles available - 60º for a gentle low curved arched profile and 180º for a dramatic semi-circular effect.
  • Well-engineered system can be mounted onto most builder’s upstands.
  • Aluminium mill finish or powder coated to any colour.
  • Fully water managed using interconnecting gutter design and gasket system to ensure safe moisture drainage.
  • Low U value and non-fragile options available.



A number of opening options to provide natural ventilation can be incorporated into both Marvault HF and RL rooflights. Each of the ventilation options is available in a choice of either manual or powered opening. Marvault HF and RL can also be used in conjunction with automatic rain, heat and humidity sensor systems.


Polycarbonate is a self-venting material that softens at relatively low temperatures allowing fire, smoke and hot gases to escape. Class 1(Y) deemed SAA.


Polycarbonate’s mechanical performance is known to remain stable in prolonged service in temperatures ranging from -40ºC to +100ºC.


Marvault HF and RL rooflights have exceptional impact resistance and are particularly suitable for use in areas where breakage is a potential problem.


Marvault HF and RL are available in non-fragile options.


Marvault HF and RL multi skin options are available for U values down to 1.6W/m2K.


Marvault HF and RL are manufactured from high quality UV stable polycarbonate sheet. Marlon ST Longlife along with Marlon FSX Longlife are supplied with the assurance of a 10 year limited light transmission and breakage warranty.


Marvault HF and RL is supplied to site with bars pre-curved to tight tolerances and glazing cut to size. For simple trouble-free installation we recommened using one of our trained independent installers.

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