NYC 9/11 Public Portal Document
Friday 15 of Mar 2002, Mayor Office ->718 595 4544 Page 16 of 29
8. In kind repair or reeonstniction of concrete/masonry walls, parapets, chimneys, or
cornices, including mortar that matches the color, strength, and joint tooling of
historic mortar, where occurring.
9. Bracing and reinforcing of chimneys and fireplaces, provided the bracing and
reinforcing are either concealed from exterior view or removable in the future.
10. Strengthening of foundations and the addition of foundation bolts, provided that
visible new work is in kind, including mortar that matches the color, strength, and
joint tooling of historic mortar, where occurring.
E. Roofing
In kind repair, replacement, or strengthening of roofing, gutters, or downspouts.
Also, cement asbestos shingles may be replaced with asphalt based shingles, and
untreated wood shingles may be replaced with fire resistant wood shingles,
provided that if the existing roofing is historic, the new roofing will match the
historic appearance.
F. Weatherproofing and Insulation
1. Caulking and weather-stripping to complement the color of adjacent surfaces.
2. In kind replacement or installation of insulation systems, provided that decorative
interior plaster, woodwork, or exterior siding is not altered. This Allowance does
not apply to urea formaldehyde foam insulation or any other thermal insulation
containing water, when installed within wall cavities. Also, the Allowance does
not apply to insulation systems that do not include an adequate vapor retarder, or
to work in enclosed spaces that are not vented.
G. Seismic Upgrades
1. The installation of the following seismic upg-odes, provided that such upgrades
are not visible on the exterior or within character defining historic interiors: cross
bracing on pier and post foundations; metal fasteners; collar ties; gussets; tie
downs; strapping and anchoring of mechanical, electrical and plumbing
equipment; concealed anchoring of furniture; i.t.stallation of plywood diaphragms
beneath first floor joists, above top floor ceiling rafters, and on roofs; and
automatic gas shut off valves.
III. ROADS AND ROADWAYS
A. Repair of roads to pre-disaster geometric design standards and conditions using in kind
materials, number and width of lanes, shoulders, medians, curvature, grades, clearances,
and side slopes.
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NYC-WTC 000093803
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