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A. Forming Material* — Min 4 pcf (64 kg/m3) mineral wool insulation. Min 1-1/4 in. (32 mm)
wide pieces of forming material to be cut to a thickness 50% greater than the gap above the shaft
liner board, compressed and installed within the ceiling runner above the shaft liner board. In
addition, min 6 in.(152 mm) wide pieces of forming material shall be cut to a thickness equal to
the width of the ceiling runner, compressed in thickness and installed cut edge first into the top of
ceiling runner between leg of track and gypsum liner board.
A1. Forming Material* - Strips — As an alternate to the mineral wool packed within joint above
shaft liner board as described in Item 3A, the strips are stacked to a height twice larger than gap,
compressed 50%, and tightly packed within the space within the ceiling runner above the shaft
liner board.
HILTI CONSTRUCTION CHEMICALS, DIV OF HILTI INC — CP 767 Speed Strips
B. Fill, Void or Cavity Material* — Top Track Seal — Factory supplied foam seal installed over
the ceiling runner (Item 2A) on finished side of wall prior to attachment to underside of concrete
floor in accordance with the installation instructions.
HILTI CONSTRUCTION CHEMICALS, DIV OF HILTI INC — CFS-TTS-OS
* Indicates such products shall bear the UL or cUL Certification Mark for jurisdictions employing the UL or cUL Certification
(such as Canada), respectively.
Last Updated on 2017-12-08
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XHBN.HW-D-0824 - Joint Systems
12/14/2017
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