VITRAL A74 is a panel based roof light system with profiles in aluminium. A74 is characterized by nice design and slim and low profiles. The A74 system does not have a carrier frame as with patent glazing and curtain walling.

Product information

  • U-value - A74 rooflight with double glazed units has U-value of 1.6 W/m²K and 1.0 W/m²K U-value with triple glazed units.
  • Glass - A74 skylight has low 'e' double insulated glass units with argon fill and TGI “warm edge” spacer profile; outside with toughened safety glass and inside with laminated safety glass. Finish - Anodised aluminium or ppc to any RAL. Wide variety of colours (finishes) available, contact our specialists for more information. A complete range multi-coated solar control options are available to suit the project.
  • Dimensions, possibilities and limitations – VITRAL roof glazing offers many possibilities for bringing your ideas to life, such as single pitch or double pitch, gables, hips, valleys and pyramids, in-laid roof lights, single or multiple tier. VITRAL roof glazing systems can also be installed vertically. A74 profile dimensions: height - 74 mm and width - 50 mm. Panel dimensions: height - 250-2900 mm, width - 250-1200 mm and panel area - max. 2 m². Installation pitch - single pitch roof light: 15-90°, double pitch roof light: 25-60° (15° if fully supported).
  • VITRAL A74 is also available with triple glazed low 'e' insulated glass units with Krypton fill and "warm edge" spaced profile.
  • Materials – A74 is constructed from glass, high quality aluminium, plastic and rubber. The frames are thermally broken with an integrated PUR core (all materials are recyclable).
  • Ventilation - The A74 rooflight does not have a carrier frame as with patent glazing or curtain walling. This means every panel is capable of opening without the need for extra framing.
  • Certifications - A74 roof glazing system is CE marked (DS/EN14351-1). A74 roof lights can also be part of the building's fire strategy - EN12101-2 Natural Smoke and Fire Ventilation. VITRAL has the ISO9001:2008 certification.
  • A74 skylights comes with a 5 years warranty and a 2 years warranty for opening mechanisms.