Issue link: https://maltatoday.uberflip.com/i/1547436
Architecture & Design | 33 predominantly constructed using locally quarried Globigerina limestone, a material intrinsically linked to Malta's architectural heritage. While easier to work and widely available, this limestone is generally more susceptible to weathering and surface deterioration when exposed to aggressive environmental conditions. The considered deployment of these materials according to their performance characteristics contributed significantly to the fort's longevity and demonstrates the engineering foresight, technical expertise, and sophisticated understanding of material durability possessed by its designers. Evolution of the Fort Like many military structures, Fort Sliema adapted over time to changing defence requirements and technological developments. In 1905, a prominent searchlight turret was added to the battery, marking a shift in the fort's role from artillery-based coastal defence to maritime observation and illumination. This adaptation necessitated significant alterations to the site. As part of these works, sections of the original defensive ditch surrounding the battery were backfilled, allowing new structures associated with the searchlight installation to be constructed further seaward. Further modifications continued throughout the early twentieth century and in the years preceding the Second World War, reflecting evolving military needs and operational requirements. These successive interventions gradually altered both the appearance and function of the original battery. In the latter part of the twentieth century, the fort was adapted for commercial use, bringing further changes to its internal layout and external fabric, including the addition of external structures. Reinstating the Visual Integrity The current restoration project seeks not only to repair the physical fabric of the fort but also to recover and enhance its architectural authenticity. A key objective of the intervention is to review later external additions, in consultation with the Superintendence of Cultural Heritage, with a view to removing those that detract from the historical and architectural value of the monument or obscure important views of the battery. Where later additions and accretions are removed, this will help to re-establish the fort's original architectural composition and reinforce its prominence within the coastal landscape. The project therefore represents an opportunity not only to conserve the monument's physical fabric but also to restore the visual appreciation of this important landmark. Addressing Deterioration The restoration programme has been necessitated by the deterioration affecting both the Globigerina limestone masonry and the metal elements of the fort. Long-term exposure to salt-laden sea spray, wind-driven moisture, temperature fluctuations, and natural weathering have had a significant impact on the structure's external fabric. Unlike the more durable hardstone masonry used in exposed coastal locations, the limestone elements exhibit varying degrees of decay, including surface erosion, loss of stone material, open joints, biological growth, and localised deterioration of decorative features such as the cornice. In addition, numerous metal elements have suffered from advanced corrosion due to prolonged exposure to the aggressive marine environment. The conservation works, which have commenced and are being undertaken by AX Construction, involve the careful cleaning and repair of the masonry fabric, repointing of deteriorated joints, selective replacement of severely damaged stone where necessary, and the treatment and protection of historic metal components. Particular emphasis is being placed on adopting conservation techniques that respect the fort's historic fabric while ensuring its long-term durability. The works are being carried out under the supervision of the Superintendence of Cultural Heritage (SCH), guided by established heritage conservation principles. The works aim to preserve the monument's authenticity, architectural significance, and historical integrity. Trident Estates and Offset Architecture Studio look forward to the continued progress of the restoration works, which seek to address the effects of long-term weathering and, where appropriate, removal of the later additions. Through these interventions, the project seeks to preserve the fort's original fabric, recover its architectural integrity, and restore its unique historic visual character.