INFORMÁCIÓ ÉS AJÁNLATKÉRÉS
INFORMATION AND QUOTATION
Vissza
The Application Possibilities of Steel Windows and Doors in Family Homes
2022 / 07 / 04

„The Application Possibilities of Steel Windows and Doors in Family Homes”

With the changing architectural trends in residential buildings, larger glass surfaces are becoming increasingly prevalent in properties, while the size requirements of frame structures are decreasing. As a result, the use of steel windows and doors, which were previously mainly present in communal construction culture, is now being considered more frequently. We spoke with Mr. Károly Lovász, the Managing Director of KAV Hungária, to discuss when it is advisable to choose steel windows and doors instead of aluminum ones and what this product category has to offer.

KAV was considered a pioneer in Hungary when it started offering aluminum windows and doors for residential buildings. Could steel be the new aluminum?

The answer is multifaceted. In my opinion, there is a shift in today’s architectural culture, not only in terms of aesthetics but also in the structural solutions employed. While maintaining the elements and merits of minimalism, vintage design is beginning to infiltrate the forefront of architectural trends. This essentially means that there is still a demand for the integration of prominent, floor-to-ceiling outdoor glass surfaces with a very narrow frame structure, but in addition to this, traditional window and door products are expected to feature slim profiles and glazed frames, both indoors and outdoors, in harmony. For interior doors, whether sliding or hinged, the use of thin mullion profiles is emerging, a design element that was previously considered unconventional in some architectural offices. The large window and door surfaces are designed by architects in such a way that their thin frames mainly come into contact with the raw wall surface. Of course, for these spacious glass structures, parquet flooring is not chosen; instead, concrete or other cast materials are preferred. Additionally, composite elements and other natural façade cladding solutions provide the best vertical surface design. This is where glass fields can appear that may exceed the structural capacity of thin aluminum or composite frame materials. Our Optivision system is one solution to this challenge, where we utilize adhesive techniques. However, for large sliding balcony doors, clients who envision such buildings already find standard aluminum frame solutions bulky.

Could steel be the solution in such cases?

There are not many materials that offer better inertia or load-bearing capacity at the same size as aluminum, and can also be used in a thermally insulated version in this climate zone. In the world of three-layered glass thermal requirements, steel remains the solution. Among steel window and door systems, only a few can provide satisfactory solutions to the emerging “vintage” demands. In summary, when it comes to creating extremely narrow outdoor and indoor door and window frames, designed by architects, aluminum does not suffice in these cases; it is advisable to turn to steel.

What are the advantages of steel?

In terms of usage and surface treatment quality, there is almost no difference between steel and aluminum. The significant difference lies in the manufacturing and forging technology. Steel can also be used in a thermally insulated manner, thus offering thermal insulation for door and window frames. Minimal or vintage-concept steel systems have frame widths of 5-6 centimeters even from the interior. This is so slim that from the outside, more than half of it can be covered by the slatted shading system.

Modern steel windows and doors offer advanced features in handles, operation, and motorization, on par with aluminum systems. In terms of appearance, both visible and concealed fittings offer all the options that we have come to expect from aluminum. Maintenance and glass replacement are just as easily handled as in other prefabricated systems. However, there is one noticeable difference: steel allows for much more delicate solutions at the same static load compared to aluminum. Steel is a much stronger, more robust material than aluminum, and at the corners, instead of mechanically cut and glued corners, it is connected by welding, creating a much sturdier structure for a simple hinged window or balcony door, not to mention sliding versions.

Why then are steel windows and doors not as widespread?

The price of steel is significantly higher than aluminum. The situation is similar to when KAV started ten years ago because there was about a 2.5-fold price difference between premium wood and aluminum windows and doors. Over the years, this difference has significantly diminished, which is partly due to the increase in wood prices and the rising costs of manufacturing automation and technology. Today, there is about a two-fold price difference between steel and aluminum windows and doors. This is largely because steel production is less automatable, and door and window frames made of steel are primarily manufactured as artisanal products. There are very few manufacturers worldwide willing to invest in automating steel window and door production; this is more the domain of the steel structural market. In the Hungarian door and window sector, most companies produce steel products that serve institutional solutions, such as fire-resistant structures, entrance doors, and roofs, with steel being the material of choice. While KAV is venturing beyond this realm and primarily targeting the exclusive market, the slower, more expensive manufacturing method for steel window and door production, driven by artisanal manufacturing and material processing, as well as design and junction configurations, unfortunately, shifts the production of steel windows and doors toward a slower and more expensive direction. Not to mention that the raw material itself has a much higher initial cost, and its transportation and storage are more complex since it is heavier and more susceptible to corrosion in its raw state than aluminum. Until now, there hasn’t been much demand in Hungary to pay this price difference. I feel that we have now reached the moment when clients are willing to dig deeper into their pockets for better technology, exceptional thin frame structures, and a more flexible design approach. Our ultimate goal is to create an exportable package (product + service) from this. The lifespan of a steel window is much longer compared to wood or PVC, requiring less maintenance, and the steel fittings used today are refined, precise solutions. At KAV, we have chosen to implement the prestigious Swiss Jansen system, our reliable supplier partner for Alukönigstahl and Schüco for many decades. This system has been used in Hungary for over 30 years, providing unique solutions and opportunities in fire-resistant and other steel applications. The product range has now expanded to the point where steel can also serve as a material for residential minimal-concept buildings.

Does KAV require special investments to focus more on steel?

Yes, designing, manufacturing, and installing complex steel window and door systems for residential buildings require significant intellectual and physical resources. Currently, in our Budapest office, the workload primarily involves cost calculations and construction scheduling, so we unfortunately cannot focus on one or two-unit projects at the moment. We are starting to set up a separate production section in our Kisbér plant for steel, and our production preparation engineers are developing the milestones of steel window and door production planning. Since black steel cannot be processed in the same space as aluminum, cutting, welding, and grinding of steel can only be done in a separate room. This product category requires different equipment, machinery, ventilation, and manufacturing affinity. Our aluminum window and door production is an engineering-driven, frantic playground that draws from many sources and consists of several hundred thousand item numbers, whereas the production of steel window artifacts is a creative process built on the imagination and foresight of professional craftsmen.

 

The Application Possibilities of Steel Windows and Doors in Family Homes
01
00
The Application Possibilities of Steel Windows and Doors in Family Homes - 1
The Application Possibilities of Steel Windows and Doors in Family Homes - 2
More News
01
020
2018 / 12 / 12
KAV closing systems also in Iceland
KAV closing systems also in Iceland
It has been a well-kept secret for a long time, and today many in the facade and structure building business are also talking about KAV’s new undertaking. Aluminium closing system products manufactured according to special customer demands are not only interesting due to their specific technical and weather requirements but also because of the installation location.
Show more
2022 / 09 / 22
The Basics of Doors and Windows – A Conversation with Architect György Hoffmann
The Basics of Doors and Windows – A Conversation with Architect György Hoffmann
HHuge, transparent surfaces that create almost a direct connection with the surroundings. Architect György Hoffmann believes that in modern architecture, there is no longer a need for walls, as windows and pillars can also fulfill the structural functions. Our conversation also reveals what primarily influences the thinking of architect-designers and what it takes to establish a common language between the client and the designer.
Show more
2020 / 01 / 24
KAV and Porsche design
KAV and Porsche design
Taste of life, reliability, design and functionality. These were the buzzwords for designing the minimalist style house, the owner of which followed F. A. Porsche's philosophy.
Show more
2017 / 10 / 30
A minimalistic house with a view that cannot be destroyed
A minimalistic house with a view that cannot be destroyed
Conversation with the developer
Show more
2016 / 01 / 01
A Business Ethics Prize is granted to KAV Hungária
A Business Ethics Prize is granted to KAV Hungária
Responsible thinking became a winner
Show more
2020 / 05 / 27
Professional and readable content on the new KAV website
Professional and readable content on the new KAV website
A notable feature of the market for custom doors and windows is that professionals, construction operators and property owners are equally curious about our products and innovative solutions. This was our guiding principle during the development of our new website; the final design follows the layout of quality magazines, while our text-based content aims to provide readers with useful information.
Show more
2023 / 06 / 12
Windows in the Design Process from an Architect’s Perspective
Windows in the Design Process from an Architect’s Perspective
The question of when to engage window experts in the design process often arises. In this context, architect and head of the Archista architectural firm, László Kenyeres, shares his experiences. He believes that in today's architectural design process, windows and doors are a critical aspect because they represent one of the most complex parts of a building. Therefore, even those not well-versed in the world of windows may require external assistance to confidently complete an execution plan.
Show more
2020 / 10 / 01
Frameless sliding door structures with an architect’s eye
Frameless sliding door structures with an architect’s eye
Each project poses a different challenge to architects and to door and window professionals as well. One of our reference concepts is based on the unlimited view created by the wing-opening roof and the space stretched by the floor. Filigree division solutions, as well as frameless sliding mechanisms, were the main solution to achieve maximum transparency. We talked to the architect Orsolya Glavanovics about the issues raised by the aluminium door and window solutions implemented during the design and construction, who the Myd-II Interior Design Stúdióval planned it jointly, house operating on this for the special fenestration solutions.
Show more
2018 / 03 / 12
Every property is sold once
Every property is sold once
By now, a personal needs assessment by an engineer has become the trademark of our company. We facilitate this process, in that our customers who request a quote may decide on the question of closing systems on the basis of an objective and clear set of requirements.
Show more
2022 / 05 / 26
Aluminium windows and doors and the gluing technique
Aluminium windows and doors and the gluing technique
Unique windows and doors, large glass surfaces and narrow frames would not have become part of our building culture without developments in gluing technology. We talked to Gábor Farkas, head of the industrial glue technology division at Sika Hungária Kft., about the special fixing and sealing processes and innovations that have emerged in this field over the past decade. The cooperation between KAV and Sika goes back many years. In the beginning, they only supplied sealing materials for glass-to-glass connections made on-site, but today they supply KAV's factory workers and installation team with special materials and tools, and also train our engineers.
Show more
2022 / 03 / 21
Aluminium door and window systems for a golf club extension
Aluminium door and window systems for a golf club extension
From almost the first pencil stroke, KAV's staff cooperated with Kroki Studio on the extension of the Continental Golf Club. This included a jointly designed support structure, custom latched line-up and skylight connections, amongst other elements of the exclusive building. We spoke to András Göde, one of the founders of Kroki, about the joint work, what it is like to work on the basis of each other's ideas and the interesting aspects of the project.
Show more
2021 / 06 / 02
Architectural design of aluminium doors and windows in our time
Architectural design of aluminium doors and windows in our time
The aim of the KAV team is to provide our customers with all the solutions for their unique doors and windows needs, whether it may be a minimal window, a frameless sliding door, an aluminium front door, a blind or even a curtain wall. Most customers start looking for windows when they already have the finished designs, but we increasingly often see, during the consultations, that these designs are not detailed enough. We talked about the correlation between architectural designs and the door and window solutions with Csaba Mravik, KAV Hungária’s chief development engineer of.
Show more
2019 / 03 / 29
A house where the doors and windows shaped the design process
A house where the doors and windows shaped the design process
What they design, they can do, they guarantee in the long run, and they can operate such a property. We can be sure that the company will not disappear.
Show more
2022 / 04 / 11
Those about whom who nobody ever talks, or the eminences of manufacturing preparation
Those about whom who nobody ever talks, or the eminences of manufacturing preparation
KAV's customers come into contact with several of our colleagues in the bidding, preparation and construction processes in the course of a job. These are our sales and estimation colleagues, our technical and manufacturing preparation engineers, our project engineers, and then our installation specialists. It is very rare that the end-user comes into contact with the manufacturing preparation engineers. In this article, we’d like to describe the work of these professionals in connection with the Continental Golf Club construction project.
Show more
2021 / 05 / 03
Choose big aluminium windows and doors!
Choose big aluminium windows and doors!
The use of aluminium doors and windows in family homes allows increasingly large glass surfaces to appear in residential buildings. Because we spend a large part of our time indoors, high-transparency aluminium windows and sliding doors help to create an almost direct connection with the environment. We discussed with Károly Lovász, the managing director of KAV Hungária, why it is worth choosing large doors and windows.
Show more
2019 / 04 / 08
Three KAV buildings received the ALUTA Award of Excellence
Three KAV buildings received the ALUTA Award of Excellence
After the successes of the past two years, three KAV buildings were awarded with the ALUTA award of excellence, the only quality recognition of Hungarian aluminium window, door, facade manufacturers, in the “small project”, i.e. residential building, category.
Show more
2015 / 02 / 15
A facade is not a private matterv
A facade is not a private matterv
I think this company has a sincere desire to do good. There's a precise company executive who really wants to do the best he can, and this desire affects the whole company. And that's what the customer sees.
Show more
2023 / 01 / 26
The issue of shading is becoming increasingly important
The issue of shading is becoming increasingly important
The changing economic environment and rising energy prices are also impacting the construction industry. But how might the market for premium segment windows change? According to KAV's CEO, Károly Lovász, the focus will shift towards the issue of shading, and it is crucial for builders to select companies with a stable background and a qualified workforce.
Show more
2020 / 06 / 11
We pay attention to what the customer wants to create
We pay attention to what the customer wants to create
The KAV team is constantly expanding; we are currently looking for employees for several positions. Henriette Hégli graduated as an economist and came to our company in July last year after a career as an executive and real estate salesperson. As project coordinator, she is responsible for preparing individual quotes. In order to be able to perform her task as optimally as possible, she took part in a freshman programme in the first few weeks of her start-up, in which she got to know in detail the individual work processes, the market for custom doors and windows and the KAV way of thinking.
Show more
2021 / 08 / 05
This is how aluminium doors and windows are made
This is how aluminium doors and windows are made
Wondering how an aluminium-framed window or door is manufactured? What happens in the machining centre? How are aluminium doors milled, reinforced, and machined in the production process? What is the size of glass surfaces that can be produced? And how to assemble a window?
Show more