New York City
Description: Exterior Facade and Roof Restoration
Types of work: Copperwork, slate roofing,
Once called The Knox Hat Building, this landmark
building at the corner of 5th Avenue and 40th Street is
now the world headquarters for HSBC Bank. This classic Beaux-Art
structure is well recognized for it's elaborate torch and
shield copper cornice and large sheetmetal dormers.
preparation for an HSBC World Bank summit meeting,
a full historic exterior facade and roof restoration was
planned. HSBC and Facade Maintenance Design Architects,
looked to Nicholson & Galloway to perform this difficult
ornate 140 linear foot 8' tall stamped copper cornice was
completely replaced in-kind and coated to replicate patinated
copper. Existing structural steel was repaired and reinforced
to receive a new stainless steel cornice armature. Four
massive copper corner Cartouches were removed and meticulously
restored to like-new condition.
square feet of Dutch lapped slate roofing was removed and
replace with new Vermont Black slate. Original terra-cotta
roof blocks were structurally restored and covered with
new marine grade plywood and waterproofing membrane to serve
as new slate substrate.
of the Knox Building's copper dormers and cornices were
stripped of existing hazardous lead paint and repainted
with Tnemec coatings. All windows were recaulked and the
entire brick and limestone facade was cleaned.
always, all work and supervision was performed by Nicholson
& Galloway's own personnel.