Firestopping Book Firestopping Book | Page 124

JOINT SYSTEMS | UL Product iQ
Page 3 of 3
wall shall be packed with additional strips of mineral wool batt insulation compressed 33 percent in thickness flush
with the surface of the wall.
ROCK WOOL MANUFACTURING CO — Delta Board
D. Fill, Void or Cavity Material* — Min 1/8 in. (3.2 mm) wet thickness (min 1/16 in. or 1.6 mm dry thickness) of fill
material sprayed or troweled to completely cover mineral wool forming material and to overlap a min of 1/2 in. (13
mm) onto wall and steel deck on accessible side of the wall.
HILTI CONSTRUCTION CHEMICALS, DIV OF HILTI INC — CP672 Firestop Spray or CFS-SP WB Firestop Joint
Spray
* 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 2010-06-04
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(Fig 4.18)
INSTALLATION AND INSPECTION
The inspection of penetration firestops and joint systems is not
specifically addressed in the code. As a general rule, these are
“listed” systems and therefore must be installed in accordance
with their listing and the manufacturer’s installation instructions.
Code users may want to be aware of the ASTM E 2393 standard,
Standard Practice for On-Site Inspection of Installed Fire-resistive
Joint Systems and Perimeter Fire Barriers. According to Chapter 17
(see Sections 1705.17 and 1705.17.2), compliance with that standard
is mandatory for special inspections of fire-resistant joint systems
where required. A brief discussion of this standard is included at the
end of this book in the section dealing with miscellaneous topics.
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7/11/2019