When traditional techniques trump modern methods

OBMI presents a case study in repairing an 1879 Salvation Army building

OBMI Bermuda works closely with contractors using the most up to date construction methods for new build and extensions; however, for older properties, a more traditional approach may be more appropriate to preserve their unique character and maintaining Bermudas architectural heritage.

The Salvation Army building is a delightful grade 2 listed building that is discreetly tucked away along Governors Alley in St. George’s. Built originally in 1879, with embellishments added to the exterior several years later to give the building a somewhat gothic appearance with a robust stature that reflects the military undertones.

The building was showing signs of degradation. OBMI worked hand in hand with contractors, Kaissa Ltd., and the client, against a limited budget, to address the essential repairs required to the building envelope and structure.

The building had numerous water ingress issues, particularly along the joint between the main roof and flat roof extension that was added in the 1980’s.

The church roof has now been fully refurbished by Kaissa Ltd. with a high performance acrylic elastomeric coating, and the exterior walls treated and painted with a high-performance paint to prevent further damp and water ingress issues.

It was fundamental to make the roof water-tight whilst also addressing the structural integrity of the 142-year-old purlins (wooden beams) that support the main church roof. A number of the wood purlins were showing signs of distress from visual inspection. Following further investigation, it was found the purlins sat between timber blocks mounted to a timber wall plate. These had rotted beyond repair given they sat between the purlins and the damp Bermuda stone. Initially, a modern solution of steel rod and concrete was discussed. However, considering the compatibility with the soft Bermuda stone it was decided that a ‘like for like’ replacement would be the most appropriate, cost effective and sympathetic to the original building and construction techniques.

Designing

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