UW- value ≤ 0.87

Kömmerling 76 MD Zero is an architectural hit in Spain. The hidden sash design makes the window look like fixed glazing from the outside, even if it opens. This provides clean facade lines and increases the light opening area compared to standard windows.

The system is based on the highly efficient 76 mm platform with central sealing, combining minimalist design with top thermal insulation performance. Ideal for projects in modern and high-tech styles.

Article number
200.100.004

Technical Specifications

Details

Minimalism and purity

Hidden sash design

Hidden sash Hoja Oculta
The unique Zero system design allows the sash to be completely hidden behind the frame when viewed from outside. This creates a seamless facade glazing effect, matching the latest trends in modern architecture where clean lines and absence of extra details are valued.

Spaciousness

Panoramic view without borders

Zero window view
Thanks to the hidden sash, the profile takes up significantly less space in the window opening. You get 15-20% more glass compared to standard windows, turning every window opening into a living picture and filling your home with maximum sunlight.

Technology

Premium airtightness

Zero system airtightness
Despite its minimalist appearance, the system retains all the advantages of flagship models: three sealing circuits ensure absolute airtightness. No street dust, sand, or small debris enters the home, which is especially important during windy weather on the coast.

Kömmerling 76 MD Zero

A designer "hidden sash" system. From the outside, the window looks like solid glass without extra frames. It lets maximum light into your home and is ideal for modern minimalist villas.

Calculate Cost
Estimated manufacturing time 3-6 weeks.
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

Renovations

Thinking about the renovation you keep putting off? We have a solution

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Financing Options

Enjoy your purchase now and pay for it in installments using our financing services.

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Don'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

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UW- value ≤ 1.1

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Insulation
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Sound insulation
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Material
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Profile depth
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Insulation
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Glazing unit
up to 50 mm
Thermal protection (Uw)
≤ 1.1 W/(m²·K)
Sound insulation
≈ 44 Rw(dB)
UW- value ≤ 0.8

Kömmerling Xtrem 76 MD

The best solution for seaside homes. The third sealing circuit acts as a barrier: it keeps out salt dust and moisture, protecting mechanisms from corrosion, and much better dampens street noise.
Energy efficiency
A+
Material
PVC (Xtrem)
Profile depth
76 mm
Insulation
6 chambers / 3 circuits
Glazing unit
up to 50 mm
Thermal protection (Uw)
≤ 1.0 W/(m²·K)
Sound insulation
≈ 47 Rw(dB)
UW- value ≤ 1.1

Cortizo A 70

The benchmark of Spanish quality in the PVC segment. A versatile 5-chamber system specifically designed for the Iberian Peninsula climate, combining high energy efficiency with elegant, refined design.
Energy Efficiency
A / A+
Material
PVC (Class A)
Profile Depth
70 mm
Insulation
5 chambers
Glazing Unit
up to 40 mm
Thermal Protection (Uw)
≤ 1.1 W/(m²·K)
Sound Insulation
≈ 46 Rw(dB)
UW- value ≤ 0.66

Cortizo A 84 Passivhaus

The absolute champion of energy efficiency. A certified Passivhaus standard system with 84 mm installation depth and 6 chambers for zero-energy homes with maximum comfort.
Energy Efficiency
A+++
Material
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Profile Depth
84 mm
Insulation
6 chambers + 3 seals
Glazing Unit
up to 56 mm
Thermal Protection (Uw)
≤ 0.66 W/(m²·K)
Sound Insulation
≈ 48 Rw(dB)
UW- value 1.3

Veka Softline 70

The benchmark of strength. Class "A" profile with closed reinforcement for maximum stability and thermal insulation.
Energy Efficiency
A
Profile Chambers
5 chambers
Profile Depth
70mm
Profile Height
112mm
Glass Unit
up to 42mm
Thermal Protection
Uw ≤ 1.3 W/(m²·K)
Sound Insulation
≈45 Rw(dB)

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FAQs

Frequently Asked Questions about Kömmerling 76 MD Zero

What is a hidden sash and what is its purpose?

In the 76 MD Zero system, the sash is completely covered by the frame from the outside. From the street, the window looks like fixed glazing, even if it opens. This allows architects to create facades with clean, symmetrical lines where no difference is visible between opening and fixed windows.

How much more light does the Zero system provide compared to regular windows?

Because the sash profile is "hidden," the visible plastic part is reduced to a minimum. This increases the transparent glazing area by approximately 15-20%. Your home is filled with natural light, which is especially valuable for small rooms or spaces with sea or garden views.

Is this system suitable for modern minimalist architecture?

This is the main purpose of creating 76 MD Zero. It perfectly combines with High-tech and Minimalist styles. The narrow, straight profile lines emphasize the modern character of the building. It is often chosen for premium villas and apartments where design is a priority along with functionality.

Does thermal insulation suffer due to such an unusual design?

Not at all. Zero is based on the proven 6-chamber 76 MD platform with three sealing circuits. The profile heat transfer coefficient is around 1.0 W/m²K. You get an ultra-modern appearance without any compromises on heat or cold protection.

Is it easy to clean such windows if the sash is hidden?

Cleaning 76 MD Zero windows is no different from standard systems. In the open position, all surfaces are accessible for cleaning. Moreover, the absence of protruding sash parts outside reduces the number of places where street dust and dirt can accumulate, making the facade neater.

What hardware can be used in a hidden sash system?

The system is fully compatible with modern hardware systems, including fully concealed hinges. In this combination, the window looks maximally aesthetic both from outside and inside — there are no protruding elements on the frame, only an elegant handle.

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Order a free consultation from our company specialists. We will call you back at a convenient time and discuss how we can help you.

All prices are in euros and include VAT and delivery costs. Crossed-out prices correspond to the original product prices according to the manufacturer's recommended retail price (if available). In case of prepayment, prices and offers will be valid for 7 days from order confirmation; subsequently, they will be subject to change. Delivery zone: Spain.

Colors, glazing, and sizes may differ from images. Image realism is not guaranteed.

Some products and related images in videos may contain discontinued items and information.

1 Production times may be increased under certain circumstances (e.g., special design, company holiday periods, etc.). For technical reasons, we cannot account for these extensions when calculating production times. Due to external circumstances in the procurement of raw materials such as steel, PVC, and wood, the production time of your order may be increased. Please keep this in mind. This does not give you the right to demand changes in contractual prices or the possibility of terminating the sales contract.

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