ONE Tower, Limassol | Projects | SIDERISE

ONE Tower, Limassol


ONE Tower, Limassol, Cyprus

Siderise provides passive fire protection for tallest seafront building in Europe.


About the project

Twice the height of any other building in Cyprus, the ONE Tower commands the skyline of Limassol. Sitting on the palm tree lined seafront close to both the city’s bustling business district and its quaint old town, the new development offers 83 luxurious residences, leisure and commercial opportunities set across 37 floors. Its award-winning curved design reminiscent of a yacht’s sail, stands at 170 m high which, coupled with its coastal location, presented a unique set of passive fire requirements for its facade.


Key information

Completion date

Summer 2020


Residential | Retail | Leisure

End client

Pafilia Property Developers Ltd.

Main contractor

Arabian Construction Company (ACC) | JV Partners | Joannou & Paraskevaides Group (J&P Group)

Facade contractor

Glassline Industries Ltd


WKK Architects

Distribution Partner

DPS TechnoIndustrial Ltd


Products used



The sheer height of the tower meant it was vital to ensure the facade construction contained adequate passive fire protection, complying with local regulations and ensuring ongoing safety throughout the building’s lifetime. After working with our products and our Cypriot distribution partner DPS for a number of years, facade contractors Glassline specified a combination of open state Siderise cavity barriers and cassette inserts.


The RVG vertical and RH horizontal cavity barriers are designed to allow the facade system to maintain airflow and drain away any moisture within its construction but, in the event of a fire, rapidly close the ventilation gap to create an effective hot smoke and fire seal. Both products achieve Class A1 to EN 13501-1 and provide 120 minutes fire integrity. The barriers are complemented with the use of OSCI Cassette Inserts which are Class A2 rated. All these products have undergone rigorous third party testing to ensure dependable performance. These include single product tests and testing as part of a large-scale system, such as BS 8414 (1&2) and NFPA 285, demonstrating their performance within a complex, high-rise cladding system such as that used on the ONE Tower. For more detail about the standards the products meet, please visit the individual technical data pages.


In addition to providing straightforward passive fire protection, the stonewall lamella core of the RVG vertical cavity barriers allows them to accommodate the natural movement associated with rainscreen facades. This is especially important on this exposed seafront project. It is also for this reason that the cavity barrier brackets were specified in robust galvanised steel, protecting them from corrosion caused by the sea air.


All Siderise products are designed to be easily installed— a key benefit on this large-scale project, enabling it to be finished to a high standard without compromising the project timeline. The RVG vertical barriers and then the RH horizontal barriers were cut to the correct size and installed by Glassline using Siderise galvanised steel brackets and foil tape. Where the two products met, they were simply tightly abutted, and the joints sealed with foil tape to ensure continuity of intumescence and therefore fire protection. The OSCI cassette inserts were then fitted as part of the cladding system, installed directly behind the cassette panels and in parallel and centrally aligned to the RVG and RH cavity barriers. This helped to simplify detailing and ensure the ventilation gap met the project requirements. Technical support and site services were provided by our partner DPS throughout the design and installation process, in-keeping with the Siderise ethos of standing by the side of our customers to deliver optimum results.

Final Comments

Created in collaboration with a number of renowned international and local firms and suppliers, ONE Limassol Tower not only stands as a symbol of the city’s exciting future, but also of what can be achieved when diverse skills, expertise and vision are brought together. The selection of tested Siderise products chosen for the project will help to ensure that the building remains a safe and beautiful home and landmark for the people of Limassol for many years to come.

Image copyright (C) Pafilia


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