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Phase II – External façade repairs

The top floor external walls were reconstructed and
plastered. New double glazed windows were added
on the top floor. Downtake pipes were connected
to hopper heads. All vegetation growth was also
removed using biocide. Windows were repaired in
teakwood and made uniform and new teakwood drip
moulds were added. Additionally, the rear façade
work included complete new plumbing, stream lining
of the AC units, painting of the plastered surfaces.
The lower floor plaster was made rusticated to
match with rest of the building and which was also
the feature of that period architecture.
Painted stone surfaces were exposed again by Fig. 38 Making of Fig. 39 SS Staples for

removing paint using steam machine. The cracks Teakwood Windows Stitching of Masonry
in the stone façade were stitched using special Matching the Original Façade Cracks
stitching staples between the stone blocks.Kadappa Fig. 40 Removal of Paint
from the Stone Surfaces
stone was fixed over the cornice above the 4th floor
and was waterproofed with brick bat coba. Fig. 41 Laying of Kadappa Stone and Brick Bat Over
the Cornice
Phase III – Internal repair work

The major internal repair consisted of repairing the
jack arch slabs. Many localised panels as determined
from top and bottom floor investigations which were
showing signs of distress were re-casted with an
improvised detail of using M25 grade concrete and
additional reinforcement within the jack arch panel.
The jack arch style of slab construction was retained
and hence the authenticity of the structure was
conserved.

Fig. 42 - 46 Process of Repairing and Reconstructing
Jack Arch Slabs Locally.

CONSERVING THE UNLOVED HERITAGE IN THE REDEVELOPMENT ERA OF MUMBAI – CASE
STUDY: COMMISSARIAT BUILDING, DR. D.N.ROAD, FORT, MUMBAI

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