Frameless balcony glazing is a system of transparent glass panels without heavy vertical frames. The panels slide or fold open while maintaining unobstructed views and modern aesthetics.

Balcony glazing works by installing movable glass panels around a balcony to protect the space from weather while maintaining ventilation and outdoor views. Lumon frameless glazing panels slide and fold open, allowing homeowners to fully or partially open the balcony depending on weather conditions and personal preferences.

Frameless balcony glazing uses transparent glass panels without vertical frames between panes, creating open views and a modern appearance. Framed balcony glazing includes visible vertical profiles between glass panels. Homeowners often choose frameless glazing for aesthetics, flexibility, and unobstructed outdoor visibility.

Retractable and sliding glazing systems both use movable glass panels to improve the comfort and usability of balconies and terraces, but they differ in how fully the glazing can be opened.

Retractable glazing systems are designed so the glass panels can slide and fold completely to the side, allowing the balcony or terrace to be opened much more fully when desired. This creates a more open outdoor feeling and provides greater flexibility for ventilation and everyday use.

Sliding glazing systems typically allow the glass panels to slide horizontally along tracks, but the panels usually remain stacked within the opening area. This means part of the balcony or terrace opening often stays covered by glass panels even when the system is open.

People install balcony glazing to improve comfort, reduce weather exposure, extend balcony usability, and create more practical outdoor living space.

Balcony glazing helps create a more comfortable and versatile outdoor living space by protecting balconies from wind, rain, dust, and noise. It can extend balcony usability throughout the year, improve balcony safety, reduce maintenance needs, and help protect building structures from weather exposure.

Balcony glazing can be a worthwhile investment for homeowners who want to improve comfort, protect their outdoor space from weather, and use their balcony for more months throughout the year.

Glazing helps protect balconies from rain, wind, dirt, snow, and noise while creating a more comfortable and versatile outdoor living space. Many homeowners also appreciate the added privacy, reduced cleaning needs, and protection for balcony surfaces and furniture.

Whether balcony glazing is the right solution depends on factors such as the building type, climate, balcony usage, and the quality of the glazing system itself. A high-quality glazing system that is professionally installed and designed for long-term durability can significantly improve everyday living comfort and balcony usability.

For many apartment owners and homeowners, balcony glazing helps transform an underused outdoor area into a practical extension of the home that can be enjoyed across multiple seasons.

Yes. Lumon frameless balcony glazing systems are fully retractable, allowing the glass panels to slide and fold aside. This enables homeowners to open the balcony completely when desired and enjoy fresh air and unobstructed views.

Yes. Balcony glazing can help protect balcony surfaces and furniture from rain, dirt, UV exposure, and environmental wear, reducing cleaning and maintenance needs.

The UV transmission of our tempered glass depends on the thickness and colour of the glass:
Clear glass
6 mm = 57%
8 mm = 52%
10 mm = 49%
12 mm = 46%
Gray glass
6 mm = 18%
8mm = 12%

The tempered glass allows some of the sun’s UV rays to pass through, so it is quite possible to sunbathe with the glasses closed. See the UV protection figures above.

Some glass manufacturing processes, such as tempering, can create patterns on the glass that become visible if the glass fogs up. Fogging is a normal and natural phenomenon. The same phenomenon can occur in car windows. Traces or patterns can be seen from 2 meters away under normal lighting conditions.

A glazing consists of single panes of glass, which tend to fog more when warm, moist air hits the cold glass pane directly. If the glass is very cold and you open the door from the apartment, the glass fogs up on the inside. A facade is never completely sealed, and especially in older houses, both moisture and heat leak out, which is captured by the glazing. It is for this reason that a glazing should never be completely sealed, but a ventilated space so that the facade is not damaged by moisture. If you have glazing from us, you don’t have to worry about it being too tight because our glazing is always installed with regard to the facade and in accordance with the best practices However, our glazing also fogs up when it’s cold outside and warm, moist air hits the glass. The phenomenon of fogging on the inside of the glass is also common in, for example, cars. In exactly the same way that you start the fan in the car and turn on the heat to remove the fog on the glass, you can add a heat source or heating fan on the balcony or patio if you want to avoid fogging up on your glazing.

Normal silicone sprays and oils can be used for lubrication. We recommend first cleaning the profiles and parts and lubricating the system once or twice a year so that the glasses move smoothly. The spray should be sprayed sparingly. Do not use other lubricants or greases such as petroleum jelly or oils. They often attract dirt, which can damage the wheels of the system. If for some reason the glasses do not move smoothly, contact our service department

Lumon glazing systems are covered by a warranty that reflects the company’s long-term focus on quality, durability, and reliable performance. The warranty covers manufacturing and material defects in Lumon products installed according to the company’s instructions and maintenance guidelines.

Warranty coverage may vary depending on the product type and local market, but Lumon glazing systems are designed for demanding weather conditions and long service life. The systems use durable tempered safety glass and corrosion-resistant materials engineered for everyday use.

More detailed warranty terms, coverage periods, and conditions are available on Lumon’s warranty page and through local Lumon representatives.

Lumon is committed to ensuring the usability of its products in the coming years. We guarantee full availability of spare parts for all Lumon glazing, Lumon and Visor blinds for 10 years from the original date of purchase. In addition, the functional and safety-related components of Lumon glazing systems are available in one colour for 20 years. For other products purchased from Lumon, we guarantee full availability of spare parts during the warranty period. for more information check your local products and warranties.

Lumon balcony glazing panels are designed to be movable, making both sides of the glass accessible for cleaning from inside the balcony area. Regular cleaning with standard glass cleaning products and soft cloths helps maintain clear views and good appearance.

The rattling of the balcony or terrace glazing is caused by the expansion of the aluminum profiles when they react to temperature changes. Possible expansion has been taken into account in the design of the glazing and its fixings, and frostbite does not affect the safety of the balcony, terrace or the operation of the glazing.

However, if you find the noise too loud, please contact us.

Lumon’s sliding and retractable glazing systems are made of glass that has been tempered for strength and durability, which is then mounted on aluminum beads, profiles and tracks. Tempered glass is 4-6 times stronger than normal float glass, and if the glass happens to break (which is extremely rare), it will break safely into small rounded pieces.

A glazing system works as a buffer between the balcony and the outside, but also as a buffer between your home and the outside. When it’s cold and windy, your glazing shuts out the cold winds and reduces air pressure. The glazing also captures the heat that leaks out of your home. Therefore, the temperature on the balcony will be slightly higher than the temperature outside.
Remember that a glazed balcony or terrace is still a ventilated space. We recommend that you supplement the balcony with a terrace heater for some extra heat in case you want to spend time on your balcony/terrace during the coldest months.

Yes. Glazing helps make balconies and terraces more usable during colder seasons by providing protection from wind, snow, and rain. Many homeowners use glazed balconies or terraces year-round as relaxing outdoor spaces, depending on local climate conditions.

Balcony glazing can help create a more sheltered balcony environment by reducing wind exposure and temperature fluctuations near the facade. While balcony glazing is not intended as thermal insulation for indoor living areas, it may contribute to improved comfort and support building energy efficiency goals.

Balcony glazing systems are designed with durable tempered safety glass and tested according to strict safety standards. When properly installed and used according to instructions, balcony glazing can help create a safer and more protected balcony environment for households with children and pets.

Balcony or terrace glazing installation time depends on the balcony size, project complexity, and building type. In many cases, installation can be completed within one day after the glazing system has been manufactured and prepared for the site.

Around the world, glass-enclosed balconies are known by many different names.
Depending on the country, building style, and local housing trends, people may use different terms when talking about balcony glazing solutions. Many of these names describe similar concepts: adding glass panels to a balcony to improve comfort, usability, and weather protection while maintaining outdoor views.

Common terms related to balcony glazing include:
-balcony glazing
-frameless balcony glazing
-glazed balcony
-enclosure
-glass balcony enclosure
-enclosed balcony
-balcony glass system
-retractable balcony glazing
-sliding glass balcony system
-frameless sliding glass panels
-panoramic balcony glazing
-folding glass balcony system

In some markets and regions, people may also use terms such as:
-balcony sunroom
-apartment balcony enclosure
-enclosed outdoor balcony
-glassed-in balcony
-balcony glass walls
-screened balcony with glass
-enclosed veranda
-balcony winter garden
-balcony conservatory
-lanai enclosure (used in some US regions)

Although these names may refer to slightly different types of structures or glazing systems, they are usually connected to the same goal: creating a more comfortable and protected balcony space that can be enjoyed in different weather conditions.

Different countries use different names for glass-enclosed outdoor living spaces.
Depending on the region, climate, and building tradition, people may use different terms for terrace glazing and similar outdoor glass structures. In many cases, the terms overlap and are often used interchangeably, even though the structures themselves may vary in insulation level, construction style, or intended year-round use.

Common terms related to terrace glazing and outdoor glass enclosures include:
-terrace glazing
-patio glazing
-terrace enclosure
-glass terrace enclosure
-retractable glass system
-sliding glass enclosure
-frameless sliding glass system
-panoramic glazing
-folding glass wall system
-outdoor room
-glass room
-enclosed terrace
-enclosed patio
-patio enclosure
-veranda glazing

In different regions, people may also use local or market-specific names such as:
-sunroom (common in the United States and Canada)
-three-season room
-four-season room
-patio room
-conservatory (commonly used in the UK)
-winter garden or wintergarden
-lanai enclosure (used in some US regions)
-screened porch with glass
-glazed patio
-garden room

While these names may describe slightly different types of structures, they are generally connected to the same idea: creating a more comfortable, weather-protected, and usable outdoor living space with glass.

The best glazing solution for a balcony or terrace depends on the building type, climate, intended use, and personal preferences. In addition to appearance and functionality, long-term durability, safety, installation quality, and manufacturer experience also play an important role when choosing the right glazing system.

Many homeowners and architects prefer frameless glazing systems because they combine weather protection, panoramic views, natural light, and flexible ventilation without heavy visible structures. Frameless glazing also creates a modern and minimalist appearance that fits well with contemporary residential architecture.

The quality of a glazing system is influenced by factors such as product engineering, safety testing, weather resistance, smooth usability, and professional installation. Experienced glazing manufacturers also typically offer better long-term support, maintenance guidance, and proven performance in different climate conditions.

For many modern balconies and terraces, frameless retractable glazing offers one of the best balances between comfort, aesthetics, flexibility, and outdoor living usability. High-quality glazing systems are designed to provide reliable performance and enjoyable outdoor living experiences for many years.

When comparing balcony or terrace glazing systems, it is important to look beyond appearance and price alone. The quality, durability, safety, usability, and long-term performance of the glazing system can significantly affect the overall experience and lifespan of the solution.

Important factors to compare include:
-glazing system design
-frameless vs framed structure
-weather resistance
-safety testing and certifications
-smooth operation and usability
-installation quality
-maintenance requirements
-warranty coverage
-manufacturer experience
-customer support and service availability

Many people value panoramic views, natural light, flexible ventilation, and the ability to fully open the glazing system when desired.

Choosing an experienced glazing manufacturer with proven long-term performance and professionally installed systems can help ensure reliable functionality and comfortable outdoor living for many years.

Balcony glazing is one of several ways to improve the comfort and usability of outdoor living spaces. Common alternatives to balcony glazing include awnings, balcony screens, blinds, pergolas, shutters, privacy panels, and fully open balconies without weather protection.

Compared to many other solutions, balcony glazing offers a more comprehensive combination of weather protection, noise reduction, flexibility, and year-round usability. Frameless glazing systems also preserve panoramic views and natural light while allowing the balcony to remain open when desired.

Some alternatives may provide shade, privacy, or temporary weather protection, but they typically do not protect the balcony as effectively from wind, rain, dirt, snow, and changing weather conditions.

Many homeowners choose balcony glazing because it helps create a more versatile outdoor living space that can be used across multiple seasons while also helping protect balcony surfaces and furniture from weather exposure.