UW- value ≤ 1.0

Cortizo E 170 is the "heavy artillery" of the PVC window world, made for those who picture a glass wall in place of an ordinary door. This is a lift-and-slide system (Lift & Slide): turn the hefty handle and the sash rises slightly on its rollers, letting it glide along the track with almost no friction. Even a 300 kg door can be moved with ease by a child. Once closed, the sash drops down and presses firmly against the frame on rubber gaskets, achieving an airtightness that conventional sliding windows cannot reach.

The sturdy 170 mm frame delivers exceptional structural stability and can span openings up to 6 metres wide. It is the ideal answer for transitions from living rooms to gardens or poolside terraces. Thanks to warm PVC and support for wide glazing units, the E 170 acts as a dependable thermal barrier, holding indoor comfort even in blustery winter weather, where cold aluminium would fail.

Brand

Cortizo

Cortizo is the flagship of Spanish industry with headquarters in Galicia. The brand is famous for Cor Vision aluminum systems with virtually invisible profiles. If you need panoramic glazing for a villa or modern home — Cortizo is unrivaled.

More about Cortizo

Technical Specifications

Details

A premium PVC lift-and-slide system (HS-Portal). Its 170 mm build depth makes possible vast panoramic doors that move effortlessly and glide smoothly.

Energy efficiency
A++
System type
Lift-and-slide (HS)
Material
PVC (5 chambers)
Frame depth
170 mm
Max. glazing
up to 40 mm
Thermal protection (Uw)
≤ 0.9 W/(m2K)
Sound insulation
≈ 42 dB

Structural specifications:

  • Build depth: Frame - 170 mm. Sash - 70 mm.
  • Operation style: Lift-and-slide (HS / Lift & Slide). The sash rises before it slides.
  • Compound: Top-grade PVC (Greenline) with sturdy steel reinforcement inside to ward off bowing.
  • Chamber count: 5 chambers in sash and frame for strong thermal insulation.
  • Gasket setup: Compression seal arrangement using EPDM (rubber) rather than brush seals. This ensures draught-free operation.
  • Sill: Optional low threshold with a thermal break for step-free access.

Glazing choices:

  • Peak infill thickness: up to 40 mm.
  • Infill range: Triple glazed units, safety laminated glass, large-format tempered glass.

Largest sizes and mechanics:

  • Sash limits: Width up to 3000 mm, Height up to 2800 mm.
  • Sash mass: up to 300 kg (standard), up to 400 kg (special hardware).
  • Finish: The full Cortizo lamination palette, including wood-effect textures.

Tested performance:

  • Profile heat transfer (Uf): 1.6 W/m2K.
  • Window heat transfer (Uw): up to 0.9 W/m2K (with a warm glazing unit).
  • Watertightness: Class 8A (outstanding protection).
  • Air tightness: Class 4 (top grade).
  • Wind load rating: Class C2/B3 (subject to size).

Cortizo E 170

A premium PVC lift-and-slide system (HS-Portal). Its 170 mm build depth makes possible vast panoramic doors that move effortlessly and glide smoothly.

Average market price:

For a 2-panel sliding system (3000 × 2200 mm) with basic double-glazed unit.

Calculate your window

Compare with Similar Profiles

Alternative solutions from other manufacturers

UW- value ≤ 1.3

Cortizo C 70

A warm PVC sliding system. With its 70 mm-deep plastic profile, it is the natural choice for enclosing balconies and loggias, saving floor space while still insulating well.
Energy efficiency
A / A+
System type
Sliding (PVC)
Material
PVC (Greenline)
Frame depth
70 mm
Max. glazing
up to 28 mm
Thermal protection (Uw)
≤ 1.3 W/(m2·K)
Sound insulation
≈ 34 dB
UW- value 1.5

Rehau High-Design Slide

A graceful sliding system for balconies, loggias and terraces. Its compact PVC profiles glide smoothly and run warmer than aluminium.
Energy rating
B
System type
Sliding
Track options
2/3/4 tracks
Sealing
Brush seals
Glass unit
up to 24mm
Surface
HDF finish
Thermal protection
Uw ≤ 1.5 W/(m²·K)
UW- value 1.0

Rehau Synego Slide

An airtight sliding system with a press-to-close action. Quiet and effortless in a single movement.
Energy rating
A+
System type
Sealed sliding
Profile depth
80mm
Profile chambers
7 chambers
Glass unit
up to 51mm
Max panel weight
200kg
Thermal protection
Uw ≤ 1.0 W/(m²·K)
UW- value 1.3

Rehau Panorama Swing

A one-of-a-kind system whose panels both slide and pivot, opening the aperture completely.
Energy rating
A
System type
Slide-and-turn
Panel movement
Independent
Opening
Up to 100%
Panels
3-7 panels
Glass unit
up to 40mm
Thermal protection
Uw ≤ 1.3 W/(m²·K)

Side by side

Head to Head: Closest Competitors

How Cortizo E 170 stacks up against the closest matches from other brands.

SpecificationCortizo E 170This profileRehau Synego SlideKömmerling PremiSlide 76Schüco LivIngSlide
BrandCortizoREHAUKömmerlingSchüco
MaterialPVCPVCPVCPVC
Profile depth80mm76 mm (frame 158 mm)
Chambers7 chambers
Glass unit, maxup to 40 mmup to 51mmup to 50 mmup to 52mm
Thermal (Uw)≤ 1.01.0≤ 0.951.1
Sound (Rw, dB)≈ 42 dB≈ 45 Rw(dB)≈ 45 dB

See all sliding profiles compared.

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FAQs

Frequently Asked Questions about Cortizo E 170

What are the exact specs of the Cortizo E 170 lift-and-slide system?

It is a 5-chamber PVC lift-and-slide (HS) portal with a 170 mm frame depth and 70 mm sash. Key tested figures:

  • Window U-value Uw up to 0.9 W/(m²K), profile Uf 1.6 W/m²K
  • Watertightness Class 8A, air tightness Class 4
  • Sound insulation ≈ 42 dB, rated A++
It uses EPDM compression gaskets rather than brush seals for draught-free operation.

How thick a glazing unit can the E 170 hold, and why does it matter?

The 170 mm build depth accepts infill up to 40 mm thick, enough for a triple-glazed unit. That mass of glass is what delivers Uw up to 0.9 W/(m²K) and ≈ 42 dB of sound insulation. The deep frame also takes safety-laminated and large-format tempered panes, so the glass stays both warm and impact-resistant.

What are the maximum sash size and weight on the E 170?

A single sash can reach 3000 mm wide and 2800 mm high. Sash mass is supported up to 300 kg on standard hardware, rising to up to 400 kg with special hardware. The lift mechanism raises the sash before it slides, so even these large panels glide on their roller carriages with little effort.

Where is the E 170 not the right choice?

It is a premium PVC portal priced from €2,600 to €3,600, so for a small balcony slider the C 70 (from €750) is more sensible. Its wind-load rating is Class C2/B3, and falls with larger sizes, so very large panels in highly exposed sites need careful sizing. For step-free access an optional low threshold with a thermal break should be specified at fitting.

How does the E 170 compare to other Cortizo sliding systems?

Among Cortizo sliders the E 170 is the thermal benchmark:

  • vs PVC C 70 (Uw ≤ 1.3, 28 mm glass): far warmer at Uw up to 0.9 with 40 mm glass
  • vs aluminium 4900 Corredera (Uw ≤ 1.3) and COR 4200 (Uw ≤ 1.6): clearly lower heat loss
  • vs minimalist COR Vision PLUS: matches its 0.9 Uw but in PVC

Why does the E 170 use steel reinforcement and EPDM seals?

The top-grade PVC (Greenline) profile carries sturdy steel reinforcement inside to resist bowing under the weight of sashes up to 400 kg. Sealing uses an EPDM rubber compression arrangement instead of brush seals, which is what earns the Class 4 air tightness and Class 8A watertightness and keeps operation draught-free.