NYC 9/11 Public Portal Document
Asbestos Abatement Technical Specifications
For 130 Cedar Street, New York, NY
3.12 Caulk or seal edges of sheeting at floor, ceiling, walls and fixtures to form an
airtight seal.
3.13 All entrances to the work place not used for worker entry or emergency exits
•
shall be locked and sealed to prevent unauthorized entry.
4.0 Enclosure System and Controls
4.1 The Contractor shall install the DES before any work is performed within the
work area.
4.2 The DES shall be built in such a way as to minimize employee exposure when
exiting or while passing through adjacent area.
4.3 Constant air monitoring will be conducted in these adjacent areas by the
Owner(s) representatives. If fiber levels exceed 0.01 f/cc, all non-licensed
workers will be barred from this area, work shall cease, the area shall be
cleaned and any problems shall be corrected prior to re-commencement of
work.
5.0 Critical Bawler Installation
5.1 The Contractor shall seal all openings from the work area to occupied areas
of the building including:
a. Fire Exits must be accessible at all times and each should be
•
equipped with an emergency egress air lock to be utilized only in an
emergency.
b. Barriers: Critical barriers shall be installed prior to the disturbance of
any ACM. Critical barriers (barriers that separate the protected work
area from unprotected non-work areas) shall be 18-mil (3 layers of E-
mil) fire retardant polyethylene sheeting, individually secured (spray
adhesive, then taped), and held in place by wooden frame- work.
a. This framework shall be covered with 3/8-inch minimum sheet-rock
material or equivalent, caulked at all joints to provide an airtight seal
and shall provide support in both floor ceiling, and work area-non-work
area directions.
c. Additional barriers (i.e., sealing off all openings, Including but not
limited to windows, corridors, doorways, barriers, skylights, ducts,
grills, diffusers, and any other penetrations of the work place) shall be
installed with two (2) layers of 6-mil fire retardant polyethylene sealed
with tape. All seams of HVAC or other system components that pass
through the work place shall also be sealed.
5.2 Should critical barrier erection disturb any ACM, the material shall first be
removed by application of amended water and removal using tent procedures
Prepared by JLC Environmental Consultants, Inc. Project No. 04-3271 Page 40
NYC-WTC 000125618
OCR can misread numbers and units. Confirm readings against the page image before using them.