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4900 HI Sliding - aluminium and PVC windows Cortizo
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4900 HI Sliding

A standard sliding window with casement-level performance. It offers strong thermal and acoustic insulation, glazing capacity up to 36 mm and a 34 mm thermal break.

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Features

Improved-insulation sliding system with reduced central interlock | Cortizo aluminium and PVC windows for homes

4900 HI Sliding combines straight-line aesthetics, a 35 mm central interlock and an integrated handle with multipoint locking to allow sash crossing. It is suitable for homes seeking efficiency, comfort and easy sliding operation.

Thermal transmittanceUw ≥ 1,2 (W/m²K)
Acoustic insulationRw up to 40 dB
Air permeabilityClass 4
WatertightnessClass 7A
Wind resistanceClass C5
Reference test AEV 1,80 x 2,20 m / 2 sashes
System data

System data 4900 HI Sliding

Sections

Sections Frame 60, 70, 89, 120, 125, 130 mm · 126, 145 mm triple-track · 201 mm four tracks · Sash 48 mm
Polyamide strip length 34 mm
Profile thickness Window 1,6 mm
Glazing Max. 36 mm · Min. 24 mm
Max. sash dimensions Width (L) 2200 mm · Height (H) 3000 mm
Max. sash weight 240 kg
Note Check maximum weight and dimensions according to typology

Opening possibilities

Opening possibilities - aluminium and PVC windows Cortizo
Single-track (sash + fixed), double-track and triple-track sliding withfigurations. Pocket system. 90º opening without mullion.
Gallery

Gallery 4900 HI Sliding

Images of the 4900 HI Sliding system with architectural application, section details and opening possibilities.

4900 HI Sliding - aluminium and PVC windows Cortizo4900 HI Sliding - aluminium and PVC windows Cortizo4900 HI Sliding - aluminium and PVC windows Cortizo

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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.