The extensive system allows for a reduced structural load while providing a stable vegetated surface adapted to challenging urban conditions. Sedum was the natural choice: resilient to drought, wind, and high temperatures, yet capable of producing spectacular blooms during favorable periods.

Landscaping and green space development for the new Hornbach store in Bucharest – a benchmark for sustainability in commercial construction.

The extensive green roof discreetly complements this renovation. A system using drought-tolerant plants adapted to the local conditions was chosen precisely to avoid burdening the building with unnecessary maintenance requirements. In a renovation of this kind, there is no room for mistakes: every layer matters, and every detail must function reliably in the long term without compromising the historic structure.

First, we define the vegetation areas, and then the layers are installed according to a recipe that leaves no room for improvisation: protection and filter layers, a drainage layer, and only then the lightweight substrate specifically designed for sedum.

The result is a project that demonstrates how nature can enhance the character of a historic building, transforming rigid architectural elements into a living and welcoming environment.

The extensive green roof installed at the Balvanyos resort was designed from the very beginning as an integral part of the landscape rather than an element added later. The building is surrounded by forest, and the goal was for the green roofs to blend seamlessly into the surrounding greenery rather than stand out. For this reason, a simple and durable extensive system established with sedum cuttings was selected.

The implementation of a green roof system on the terrace of a mall located in the ultracentral area of Brașov represented one of the most complex logistical challenges in our recent portfolio.

The vegetated layer is designed as a small ecosystem, not as a perfectly ordered surface. Sedum spreads naturally, with variations in color and texture, while shrubs break the monotony, add volume, and create the feeling of looking at a real garden rather than a roof simply “covered” in green.

The evapotranspiration of 100 m³ of water over a few summer weeks on an extensive green roof provides active cooling that far exceeds the cost of the water and is dozens of times more efficient than the thousands of kW of electrical energy consumed by air-conditioning systems.

From a technical standpoint, the two systems work hand in hand: the roof reduces building overheating, while the green façade functions as a thermal and acoustic filter. In practice, the difference is clearly felt during summer. Not by chance, Penny’s sustainability report shows significant energy savings.

The absence of irrigation is not a drawback but a deliberate choice. The vegetation is selected to withstand dry periods with minimal resource consumption. In the end, the result is a roof that asks for little but offers a lot: protection, insulation, and a piece of authentic nature high above the city.

This green terrace is not a simple “modern add-on,” but a natural extension of ecological construction and responsible restoration. It supports proper drainage, reduces temperature fluctuations, limits the formation of condensation, and brings nature back to a place from which years of misguided interventions had pushed it away.

The design does not try to be more than it is, but it does its job: it softens the building, adds a layer of greenery to a built-up area, and transforms a technical terrace into an element that truly matters visually.

The fact that this project was understood and supported by the developer is no coincidence. Florin Mariș, CEO of Hexagon Group, understood one essential thing: “In Cluj-Napoca, you can no longer build successful projects if green areas are treated as a secondary detail.”

In a resort like Băile Tușnad, where nature is the main asset, such a roof is not only a practical solution but also a matter of common sense. It reduces the environmental impact of construction, integrates discreetly into the landscape, and demonstrates that it is possible to build in a modern way without breaking the connection with the surrounding nature.

The extensive green roof system with a sedum blanket, installed three years ago, has stabilized excellently and shows vigorous vegetation.

The extensive green roof on this U2 tower block in Timișoara is one of those projects we have literally watched grow before our eyes.

Beyond aesthetics lies the less visible, yet essential part: protection of the waterproofing, thermal comfort, and that rare feeling of having built something that works with nature rather than against it.

There was no luxury of heavy machinery or large-capacity cranes here. Everything was done by manual lifting, with materials brought up piece by piece, in a confined space with difficult access and careful attention paid to every single step.

The complex was nominated for the National Architecture Biennale Awards, 2025 edition

Located right near the sea, on a building permanently exposed to wind, salt aerosols, and sudden temperature variations, this green roof enters spring in a spectacular way: blooming uniformly, without gaps or "tired" areas.

Industrial office buildings are often condemned to a gray existence: concrete, glass, straight lines, and very little life. The green roof project with Sedum blankets at Term Metal Ploiești demonstrates exactly the opposite.

This extensive green roof, installed in a coastal locality, represents a modern and sustainable solution for integrating nature into the urban environment.

In a dreamlike landscape, at the foot of the Făgăraș Mountains, this biodiversity-type green roof has been installed.

An intensive park-like green roof with a substrate layer of about one meter, which allowed the planting of mature trees and the creation of a truly impressive landscape. Rich vegetation, from compact lawns to well-developed trees, creates a natural atmosphere, similar to a hanging urban park.

The landscape design on top of the underground garage of the office building in Cluj-Napoca was carried out under the conditions of a construction site in full operation, where the struggle was for every single square meter of working area. Storing the several thousand plants, …

Landscaping a green area around a building that is still under construction just a few days before opening is always a challenge. The complexity of the work was not only due to the scale of the project – 1,650 m² of lawn with an irrigation …

In the spring of 2019, we executed this impressive project: a 2,900 m² extensive green terrace on the roof of a new Kaufland supermarket in Constanța, which was still under construction at that time. The system used is an ultra-lightweight system with a specific layer …

A container-type pick-up point in Brașov benefits from the advantages of a green roof. The lightweight extensive system was installed in just a few hours on the Poșta Panduri parcel locker, located in the parking lot of a shopping center. We used an innovative ODU-retedrain …

An extensive green roof was installed on a non-accessible terrace of the sports hall at Ștefan cel Mare University campus in Suceava. The roof is relatively modest in size but offers significant ecological and energy benefits. There were no major logistical issues, thanks to the …

The ultra-light extensive green roof built on the Kaufland store in Bragadiru was a logistical challenge, given an overcrowded construction site and a project handover deadline of only a few days. The green area covers 1,800 m², with layers consisting of geotextile for protection and …

Extensive green terrace established by seeding, at Crama Rasova winery in Cernavodă Our experience shows that on small surfaces, easily accessible for maintenance, a viable and cost-efficient solution can also be installing vegetation with Sedum mats. After installing all layers of the extensive green terrace, …

The 9-meter-high green façade, with a total area of 350 m², was completed in a very short time — approximately three weeks. The project was executed in a design and build system by Odu Green Roof, including the supporting structure, plant holders, automated irrigation system, and the planting of approximately 26,000 succulent plants.

In a record time of 9 days, we completed this approximately 1,800 m² green terrace, despite the crowded green roof site and truck access restrictions in Sector 2. Trucks were unloaded at night and materials installed during the day. It is the first large-scale extensive …

Article by Ioana Mircea, Landscape Urbanist, published on Acoperismagazin.ro Last summer added a new chapter to the history of green roofs in Romania. At the beginning of this year, still in the design stage, the green roof of the restaurant at the Clay Castle in …

In 2015, the first green roof on a Kaufland store was completed, covering 2,520 sqm, marking the beginning of pioneering work in Romania in the field of urban green infrastructure.

Implementation of a green roof project in the Port of Constanța Green roof materials and vegetation rolls were supplied, and step-by-step consultancy was provided for each phase, enabling the beneficiary to create a drought-resistant garden. This elegant green space arrangement, which highlights the anchors placed …

Extensive green roof on a renovated commercial building in the Mamaia resort by the seaside. After the roof waterproofing of the Miorișa complex was renewed, a green terrace with drought-resistant plants was installed. At the time of installation, the sedum-type vegetation rolls were in bloom, …