Marlon Xlok
Xlok is a robust and versatile wide span modular panel glazing system.
Manufactured from aluminium glazing bars, glazed with multiwall polycarbonate, this rooflight has a simple interlocking installation method, providing an economical, highly thermally efficient and rapidly installed glazing system.
This rooflight which has a minimum 10o pitch is suitable for northlight, monopitch or ridgelight assemblies and for creating canopied courtyard areas.
Features
- 25mm, 7x-wall polycarbonate glazing system
- Robust and versatile
- U value 1.4 W/m2K (centre pane vertical)
- UV protective coating
Applications
- Northlights
- Monopitch
- Ridgelights
- Covered walkways & courtyards
- High natural light transmission
- Fully thermally broken
- Lightweight and easy to install
- Damage and impact resistant
- Excellent structural durability
- Weatherable and UV resistant
- Excellent fire performance
- Limited warranty
Structure: 25mm 7 wall
Colours: Clear, Opal
UV protection: outer face UV protected

Typical span capacity 3000mm between supports, 6000mm with intermediate supports by others, or larger in a tiered arrangement.
(*Consult technical for options on larger spans)
- Marlon Xlok is a high quality, extruded, interlocking modular multiwall polycarbonate panel and aluminium glazing bar system with a co-extruded UV resistant coating to all polycarbonate panels.
- Marlon Xlok panels are REACH compliant and recyclable.
- Xlok rooflights are expected to remain fit for purpose in normal conditions for a period of 20 years (with a warranty available providing a 10 year guarantee).
- Xlok rooflights are class B non-fragile to ACR[M]001 when new and full installed in accordance with Brett Martin Daylight Systems’ installation guides.
As a condition of ensuring that Xlok panels perform at optimum throughout their service life and retain light transmission properties, it is recommended that the panels be cleaned periodically following the guidance in TB140 Polycarbonate Care.