UW- value ≤ 1.3
Cortizo C 70 is proof that sliding windows can be warm. Unlike older aluminium sliders, this system is made from high-quality PVC with a 70 mm installation depth, compatible with main window systems. It is the ideal choice for those who want to save usable space on a balcony or terrace without sacrificing home comfort and indoor temperature.
The profile design has been developed specifically for the Spanish climate: it is resistant to intense sunlight, salty sea air, and requires no painting. Thanks to the multi-chamber construction of the frame and sash, the C 70 effectively reduces street noise and keeps cool air inside during summer. Smooth operation is ensured by reliable rollers and steel guides (reinforcement) hidden inside the profile. This is a practical, durable, and aesthetically pleasing solution for modern apartments.
Article number
300.400.003
Technical Specifications
Details
Warm PVC sliding system. The ideal solution for glazing balconies and loggias, combining space savings with the high thermal insulation of a 70 mm deep plastic profile.
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
System structural parameters:
- Installation depth: Frame - 70 mm. Sash - 46 mm.
- Opening type: Sliding (Corredera) with 2, 3, or 4 sashes on two tracks.
- Material: Impact-resistant PVC, calcium-zinc stabilised (Greenline), UV resistant.
- Profile construction: Multi-chamber frame structure (typically 3-5 chambers) and sash for thermal insulation.
- Reinforcement: Galvanised steel reinforcement inside the frame and sash for high static strength.
- Sealing: Double circuit of high-quality brush sealing (felt) with moisture-proof insert.
Glazing options:
- Maximum glazing thickness: up to 28 mm.
- Glazing types: Double glazed units (2 panes), low-E glass available.
Maximum dimensions and mechanics:
- Maximum sash dimensions: Recommended up to 1400 mm width.
- Colour options: White, wood-effect lamination, coloured lamination (including grey shades and anthracite).
- Compatibility: Full compatibility with A 70 system accessory profiles (extensions, connectors).
Certified characteristics:
- Window thermal insulation (Uw): up to 1.3 W/m2K (depending on glazing unit).
- Water tightness: Class 7A.
- Air permeability: Class 4.
- Wind resistance: Class C5.
- Sound insulation: up to 34 dB.
Convenience
Space saving
Thermal insulation
Warmer than aluminium
Comfort
Quiet operation
Cortizo C 70
Warm PVC sliding system. The ideal solution for glazing balconies and loggias, combining space savings with the high thermal insulation of a 70 mm deep plastic profile.
Calculate Cost
Estimated manufacturing time 3-6 weeks.
Eligible for NextGen Subsidy -80%
Get up to €3,000 back on this window
Available Services
Free measurement and design More details
Delivery to installation site More details
Installation by our specialists More details
Buy by Phone
Call us Monday to Saturday, except holidays, from 8:00 AM to 10:00 PM. Sundays and holidays from 10:00 AM to 8:00 PM. Call
More Ideas and Inspiration
These are some examples of our work with Cortizo C 70 profile. All this inspiration is for you and only for you.
* - Photos provided by our partners and may differ from actual products.
We are working on keeping data up-to-date. Contact us if you need fresh materials.
We are working on keeping data up-to-date. Contact us if you need fresh materials.
Financing Options
Enjoy your purchase now and pay for it in installments using our financing services.
More detailsDon't Forget to Add
Additional elements and accessories that will make your home even more comfortable
Mosquito Nets
Protect your home from insects, dust, and pollen, allowing you to enjoy fresh air even in the middle of summer.
Handles and Locking Elements
Quality hardware ensures ease of use and security for your windows and doors.
Lamination
Colorful home facades and the desire to decorate your home leads to growing demand for laminated windows every year.
Decorative Elements
Decorative strips and bars allow you to give your windows an individual style, emphasizing the architectural features of your home.
Compare with Similar Profiles
Alternative solutions from other manufacturers
UW- value ≤ 1.0
Cortizo E 170
Premium PVC lift-and-slide system (HS-Portal). 170 mm installation depth for creating giant panoramic doors with effortless and smooth operation.
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
UW- value 1.5
Rehau High-Design Slide
Elegant sliding system for balconies, loggias and terraces. Space-saving PVC profiles with smooth gliding operation and warmer than aluminum.
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
Sealed sliding system with press-to-close mechanism. Silence and ease in one motion.
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 unique system where panels slide and pivot, fully opening the aperture.
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)
Leave a Review
Customer Reviews
Find out what people are saying about it
0.0
Average rating
0 reviews
5 ★
0
4 ★
0
3 ★
0
2 ★
0
1 ★
0
No reviews yet. Be the first!
FAQs
Frequently Asked Questions about Cortizo C 70
How does the C 70 system differ from the casement A 70?
C 70 is a sliding system (sashes move left-right), while A 70 is a casement system (opens on hinges). C 70 is more convenient in limited spaces, but A 70 provides slightly better sealing and sound insulation due to rubber compression.
Will the plastic yellow in the sun?
No, Cortizo uses a high-quality PVC compound with titanium dioxide additives, specially developed for countries with high solar activity. The profile retains its whiteness and glossy surface for decades.
What glazing unit can be installed in this system?
The maximum glazing unit thickness is 28 mm. This allows installation of a standard double glazed unit (two 4 or 6 mm panes) with low-E coating and argon filling, which is quite sufficient for a warm balcony.
How secure is the sliding system?
The system is equipped with latch locks (crescent locks) that securely fix the sash. Thanks to the robust steel reinforcement inside the profile, forcing the sash open is quite difficult, although in terms of burglar resistance class it is inferior to casement windows with mushroom cams.
Is it difficult to clean these windows?
Maintenance is simple as PVC is easily cleaned with soapy water. The main advantage is the ability to remove the sashes (with some skill or professional assistance) for safe cleaning of exterior glass, which is especially important on upper floors.
Can the C 70 be used as a terrace exit?
Yes, this is a common application. However, keep in mind that the system has a small threshold (frame) that needs to be stepped over. For doors with high foot traffic, it is better to consider dedicated door systems or lift-and-slide configurations.
Need Help Choosing?
Order a free consultation from our company specialists. We will call you back at a convenient time and discuss how we can help you.