Programmatic agreement for building cleaning following disaster, March 2002

NYC 9/11 Public Portal Document

1. Minor interior mechanical (HVAC), electrical, or plumbing work, limited to upgrading, elevation, or in kind replacement, with the exception of historic fixtures, which must be repaired in kind for this Allowance to apply. This Allowance does not apply to exposed new ductwork.

2. Replacement or installation of interior fire detection, fire suppression, or security alarm systems. This Allowance does not apply to exposed wiring such as surface mounted wiring, conduits, piping, etc.

C. Windows and Doors

1. In kind repair or replacement of damaged or deteriorated windows and doors.

2. Replacement of window panes in kind or with clear double or triple glazing, provided the result does not alter the existing window material and form. Also, historic windows or glazing may be treated with clear window films. This Allowance does not apply to the replacement of existing archaic or decorative glass.

3. In kind repair of historic door and window hardware.

D. Exterior Walls, Cornices, Porches and Foundations

1. Cleaning to remove surface dirt consistent with Appendix B P, Performance Standards for Cleaning Masonry Exteriors.

2. Cleaning to remove paint (signage) from masonry exteriors consistent with Appendix B, Performance Standards for Removing Paint (Signage) from Masonry.

3. Repainting of surfaces, provided that destructive surface preparation treatments are not used, such as water blasting, sandblasting, power sanding, and chemical cleaning.

4. In kind repair or partial replacement of porches, cornices, exterior siding, doors, balustrades, stairs, or trim.

5. Substantially in kind repair or replacement of signs or awnings.

6. Temporary stabilization bracing or shoring, provided such work does not result in additional damage, significant loss of historic fabric, or irreversible alterations.

7. Anchoring of walls to floor systems, provided the anchors are embedded and concealed from exterior view, such as in the Hilti systems, and disturbed historic fabric is restored in kind.

13

NYC-WTC_000164916