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A 84 Hidden Sash Passivhaus - aluminium and PVC windows Cortizo
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A 84 Hidden Sash Passivhaus

Minimalist withcealed-sash PVC window with a visible section of only 90 mm and Passivhaus certification for warm-temperate climates. Its 84 mm depth and 6-chamber profiles deliver Uw from 0.71 W/m²K, abundant daylight and a very clean exterior design.

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Features

A 84 Hidden Sash Passivhaus · Features | Cortizo aluminium and PVC windows for homes

Minimalist withcealed-sash PVC window with a visible section of only 90 mm and Passivhaus certification for warm-temperate climates. Its 84 mm depth and 6-chamber profiles deliver Uw from 0.71 W/m²K, abundant daylight and a very clean exterior design.

Thermal transmittanceUw ≥ 0,71 (W/m²K)
Acoustic insulationRw up to 46 dB
Air permeabilityClass 4
WatertightnessClass 2250
Wind resistanceClass C5
AEV reference test 1.23 x 1.48 m / 2 sashes
System data

A 84 Hidden Sash Passivhaus · System data

Sections

Sections Frame 84 mm · Sash 84 mm
Glazing 46.5 mm glazing (Passivhaus)
Max. sash dimensions Width (W) 400-1400 mm · Height (H) 450-2500 mm
Max. sash weight 130 kg window / balwithy door
Check maximum weight and dimensions according to typology

Possibilities

Security hardware
Concealed hardware
Straight sash. Straight or curved glazing bead.

Opening possibilities

Opening possibilities A 84 Hidden Sash Passivhaus - aluminium and PVC windows Cortizo
Inward opening: Casement, tilt-and-turn and bottom-hung.
Gallery

Gallery A 84 Hidden Sash Passivhaus

A 84 Hidden Sash Passivhaus - aluminium and PVC windows Cortizo
A 84 Hidden Sash Passivhaus - aluminium and PVC windows CortizoA 84 Hidden Sash Passivhaus - aluminium and PVC windows CortizoA 84 Hidden Sash Passivhaus - aluminium and PVC windows Cortizo

A 84 Hidden Sash Passivhaus

Minimalist withcealed-sash PVC window with a visible section of only 90 mm and Passivhaus certification for warm-temperate climates. Its 84 mm depth and 6-chamber profiles deliver Uw from 0.71 W/m²K, abundant daylight and a very clean exterior design.

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.