Cortizo Windows is a specialist network for aluminium and PVC windows for homes, with professional advice, an energy-saving calculator, quote request forms and a store locator.

Are you an Architect, Fabricator, Installer?
Skylights and Verandas - aluminium and PVC windows Cortizo
← Back to facadesFacades

Skylights and Verandas

Two- or four-slope roof system formed by first-, second- and third-level mullions and transoms that provide different drainage levels, guaranteeing perfect water evacuation, ventilation and weathertightness. Optional motorised projected roof vent. It can be integrated with casement and sliding systems in the vertical sections to create verandas.

Request a quoteFeaturesSystem technical informationSystem gallery
Features

Two- or four-slope glazed roof for skylights and verandas | Cortizo aluminium and PVC windows for homes

Its stepped mullion and transom configuration makes it possible to create lightweight roofs with controlled drainage, high weathertightness and a clean architectural appearance for both skylights and verandas.

Thermal transmittanceUcw ≥ 0.8 W/m²K
Air permeabilityClass AE
WatertightnessClass RE1350
Roof openingMotorised projected vent
System technical information

System technical information

Features

Two- or four-slope roof system with 1st-, 2nd- and 3rd-level mullions and transoms
Different drainage levels to guarantee water evacuation, ventilation and weathertightness
Integration with casement and sliding systems in vertical sections to create verandas
Reference test: 3.00 x 3.50 m · design load 1200 Pa · safety load 1800 Pa

System details

Glazing: fixed lights max. 38 mm / min. 26 mm · roof vent max. 38 mm / min. 24 mm
Internal sightline: mullion 52 mm · transom 52 mm
Profile thickness: mullion 2.1 and 3.0 mm · transom 2.1 mm
Projected opening test: air Class 4 · water E1200 · wind Class C5
Minimum slope 12% (7º) · maximum slope 85% (40º)
Opening possibilities Skylights and Verandas - aluminium and PVC windows Cortizo

Opening possibilities

Outward projected opening
Integration with casement systems
Integration with sliding systems
Optional motorisation on the roof
System gallery

System gallery

Skylights and Verandas - aluminium and PVC windows Cortizo
Skylights and Verandas - aluminium and PVC windows CortizoSkylights and Verandas - aluminium and PVC windows CortizoSkylights and Verandas - aluminium and PVC windows Cortizo

Skylights and Verandas

Request advice to integrate Skylights and Verandas.

Request a quote

Aluminium and PVC windows: useful guidance for choosing well

Choosing aluminium and PVC windows is not only a matter of price. In every home, orientation, climate, outside noise, opening size, façade design and daily use all influence the final decision. Cortizo Windows brings together solutions designed to improve thermal insulation, acoustic insulation, security, natural light and energy efficiency while preserving the character of each project.

Aluminium stands out for its strength, durability, dimensional stability and design possibilities, especially when large openings, slim profiles or highly customised finishes are required. PVC offers excellent insulating performance, low maintenance and a strong balance between comfort and value for home renovation. In both cases, the right choice should take into account the glazing, opening type, installation quality, orientation and the real needs of the household.

Beyond comparing materials, it is useful to define what needs to be improved: reducing energy loss, gaining more silence, increasing security, simplifying maintenance, renewing the appearance of the home or preparing it for more efficient consumption. The Cortizo Windows retail network helps assess each project, identify the most suitable solution and request a professional quotation for replacing windows with a close, project-focused service, without spam or unrelated calls.