UNIC ROTAREX® STEEL HOUSES
Steel houses made using Unic Rotarex® technology. A new lightweight steel frame housing technology that revolutionizes traditional masonry house construction and significantly improves wood framing systems. These steel houses are built using galvanized steel framing, designed and manufactured in a modular system that is both simple and efficient. Unic Rotarex® steel houses lowers construction costs by at least 25% and reduces the building time by over 50% compared to conventional methods. We design and produce light steel structures made of galvanized steel sheets and offer support for their assembly.
We develop steel house technologies tailored for the most challenging thermal, seismic, and humidity conditions.
Our house structures are CE marked and audited by TÜV SÜD Munchen.
When you choose our steel house structures, you benefit from complete and free online consultancy, both during the design phase and throughout the construction process.
Unic Rotarex® steel houses – a simple, fast, and cost-effective technology.
STEEL HOUSE PRICES
You need to understand that in order to provide you with a price, we must refer to a specific construction.
The displayed prices cover the design, production, and assembly of the load-bearing steel structure.
Therefore, we offer three ways to illustrate the pricing:
Standard steel house prices
To help you make an opinion about the price, we present 3 examples of different shapes and sizes that reflect the price of the structure for the respective houses in the shapes and sizes presented. The prices displayed on our website refer to the steel structure, including the technical project and assembly accessories. The prices do not include VAT.
SMALL HOUSE 2001
72 m² - 2 bedrooms, living room, 1 bath - best selling model
Price for steel structure + technical documentation
8450 €
SEE PLAN
HOUSE 2009
132 m² - 3 bedrooms, living room, 2 baths, kitchen, utility rooms
Price for steel structure + technical documentation
15050 €
SEE PLAN
HOUSE 9003
128 m² - 3 bedrooms, living room, 2 baths, kitchen, utility room, terrace
Price for steel structure + technical documentation
14605 €
SEE PLAN
Turn key steel house
Through our network of partners across Romania and Europe, we can provide assembly, cladding, installation, and turnkey construction services, depending on the project location. This means you do not need to identify or coordinate the contractors involved in the execution separately.
Price calculator
The online price calculator provides an automatic price estimate by simply selecting options through a few clear steps, accompanied by explanatory texts and drawings. Please note that the estimate result does not constitute a price offer, given the limited information requested.
Estimate the price of the steel structure for your house in less than 2 minutes.
Request a personalized offer
When you have an architectural project or a clear sketch of what you want to build, send us a request and you will receive a price estimate by email or WhatsApp as soon as possible. To prepare the most accurate offer, we may contact you for further details.
TECHNOLOGY
The steel house developed by Unic Rotarex® is based on many years of experience and hundreds of steel houses built.
In our country, all seasons are extreme. The steel house must be equally protected against cold, heat, humidity, wind, and earthquakes.
We designed economical wall sections using site-specific prefabricated materials. Below are technical sections with increased thermal, sound and fire resistance. If your architect consults with us and you respect the design, you can obtain a considerable reduction on the final price.
Types of sections
Thermal resistance
PDF 100 Dalmatina wall - 22.5 cm (R₀ = 4.394), (U = 0.23 W/m²K) PDF Standard wall - 22.5 cm (R₀ = 3.637), (U = 0.27 W/m²K) PDF Ecotherm wall - 32.5 cm (R₀ = 5.909), (U = 0.17 W/m²K) PDF 100 PIR wall - 32.5 cm (R₀ = 5.909), (U = 0.17 W/m²K) PDF 200 Dalmatina wall - 32.5 cm (R₀ = 7.424), (U = 0.13 W/m²K)
Fire resistance
Fire resistance in Unic Rotarex® steel houses is achieved by cladding with fire-resistant plasterboard. The Knauf board system offers solutions with 30, 45, 60, 90, 120 and 180 minutes of fire resistance.
PDF Fire resistance Acoustic resistance
The acoustic resistance of walls in Unic Rotarex® steel houses can be achieved in several ways:
PDF Acoustic resistance - Knauf sound-insulating wall and plasterboard cladding (see details)
- Cork cladding on interior walls
- Two parallel walls that do not touch and do not transmit vibration. Only recommended between the master bedroom and children’s room, between duplex houses or hotel rooms
- The acoustic resistance of the floor slabs can be improved by using soundproofing boards instead of extruded polystyrene between the screed and OSB
Seismic resistance
Seismic resistance in Unic Rotarex® steel houses is easier to achieve due to the significantly lower weight of these structures compared to conventional buildings. An earthquake represents a horizontal ground acceleration which, multiplied by the much lower mass of our structure, generates considerably reduced seismic forces, allowing the building to successfully withstand earthquakes of high and very high intensity.
VIDEO Seismic test performed by Unic Rotarex® at the Gheorghe Asachi Technical University of Iasi DOC Scientific paper regarding the seismic resistance of Unic Rotarex® steel structures Wind resistance
Wind resistance of the Unic Rotarex® steel house up to 150 km/h is included under standard pricing conditions. We can also design for higher wind intensities, and the elasticity of the structure provides an important advantage against strong gusts.
Corrosion resistance
Corrosion resistance for Unic Rotarex® steel houses is ensured by using galvanized steel. The anti-corrosion protection must last for the entire normative lifespan of the building - 98 years, as required by law. Galvanization is recognized as the best solution for corrosion protection in steel frame houses. We use steel sheets with zinc coating levels between 150-275 grams per square meter, depending on the location and environmental conditions of the project. It is important to store the structure according to our instructions between delivery and assembly. However, if you notice stains of this kind (white rust), there is no need to worry - zinc has the remarkable property of self-healing. The assembled structure will dry quickly, and such stains can only appear due to improper storage.
STEEL HOUSES PORTFOLIO
Our portfolio is a comprehensive collection of projects spread across the globe, including hundreds of steel frame houses. To explore more of our achievements, we invite you to visit our company website at www.unicrotarex.ro.
CASE STUDY
📍Kaggevinne, Belgium - 4 Houses - 620 m²
The project was successfully completed within the agreed timeline and budget. The four steel frame houses were built to meet modern construction standards while delivering high energy efficiency. The use of galvanized steel structures ensures durability, structural stability, and long-term performance. This project demonstrates efficient project management and close collaboration between all parties involved. This case study highlights the importance of careful planning, effective coordination, and efficient project management in the construction of steel frame homes.
Project Process
1
Price Estimate
1–2 Days
Project review and preparation of the initial quotation.
2
Technical Design
14 Days
Structural engineering, 3D modeling, and preparation of production documentation.
3
Review & Approval
5 Days
Verification and approval of the documentation before production begins.
4
Manufacturing
12 Days
Production of galvanized steel components and pre-assembly when required.
5
Assembly
14 Days
Assembly of the steel structure according to the installation drawings and 3D model.
QUALITY
- ISO 9001 – quality management translated into concrete work procedures.
- CE marking – factory production control according to the EN 1090-1 standard, implemented through working instructions.
- The declaration of performance is the document that certifies the product’s performance.
- The quality certificate is the document that certifies the quality of the manufactured products.
- The warranty certificate is the document that certifies the guarantee of the purchased products.
SERVICES
Design
The design of steel structures is carried out exclusively by specialized engineers approved by Unic Rotarex®. We can also facilitate MLPAT verification.
Production
The production of steel structures is carried out on a manufacturing line equipped with state-of-the-art CNC machinery. All our products are CE marked.
Assembly
The assembly has two stages: pre-assembling the structural elements in the factory and on-site installation by our partner teams.
Transportation
We can assist in finding the appropriate means of transport; you will handle the booking and payment.
Consultancy
After purchasing a Unic Rotarex® steel house, you benefit from free consultancy, both by phone and through other media channels, throughout the entire assembly process as well as during the other stages of construction.
ABOUT US
The www.casa-metalica.ro website is the property of Unic Rotarex®. It was published with the purpose of presenting information about the product “galvanized steel house structure” in a simple and easy-to-read format for our clients. Complete information about us can be found on the main website of Unic Rotarex® by clicking the button below.
FAQ - FREQUENTLY ASKED QUESTIONS
STEEL FRAME HOUSES VS. BRICK HOUSES
Steel framing generally offers faster construction, a cleaner building site, high precision, and an excellent strength-to-weight ratio. Both steel framing and brick can be durable and energy-efficient when properly designed and constructed. The right choice depends on the project, technical requirements, and construction objectives.
IS A 1MM STEEL THICKNESS ENOUGH?
Sheet thickness alone does not determine the strength of a steel structure. Strength depends on the profile shape, geometry, arrangement of the elements, connections, and, most importantly, the structural design calculation, which determines the appropriate solution for each project.
PRICE PER SQM FOR STEEL FRAME HOUSE
The price per square meter for a steel frame house can vary significantly depending on location, materials, design, labor costs, and workforce availability. In most cases, this price does not include the foundation, land, installations, or finishes, while turnkey offers are usually more expensive because the builder assumes all project risks. For a more accurate price, it is recommended to request separate quotes for the structure, materials, and labor.
STEEL FRAME HOUSES VS. WOOD FRAME HOUSES
Lightweight steel framing offers precision, strength, fast assembly, and long-term stability, while also being recyclable. Unlike wood, steel is not affected by moisture, warping, or pests and allows for industrialized construction based on precise 3D plans. This makes steel framing a modern, efficient, and durable alternative to wood framing.
DISADVANTAGES OF STEEL FRAME HOUSES
Aspects such as fire protection, thermal and sound insulation, and long-term durability can be optimized through modern technical solutions and high-quality materials. This construction system allows for efficient, durable homes that meet today’s standards and requirements. With proper design and execution, steel frame houses can outperform many traditional construction systems.
STEEL FRAME HOUSES – CUSTOMER REVIEWS
Light steel frame houses are highly valued by customers for their fast construction process, durability, energy efficiency, and excellent value for money. Reviews received from clients around the world highlight the professionalism of the Unic Rotarex® team. Positive customer experiences confirm the advantages of a modern, reliable, and efficient steel frame construction system.