PENETRATION FIRESTOP MEMBRANE PENETRATION
The general term used for the
material(s) or device used for
the protection of penetrations.
The IBC code’s definition indi-
cates the term includes both a
through-penetration firestop or a
membrane-penetration firestop.
In NBC there is only one defini-
tion which is for through pene-
tration firestop and membrane
penetration terminology is yet to
be included. A breach in one side of a
floor-ceiling, roof-ceiling or wall
assembly to accommodate an
item installed into or passing
through the assembly. Figure 2.6
shows an example of membrane
penetration of a wall assembly
and the difference between the
membrane penetration, mem-
brane-penetration firestop and
membrane-penetration firestop
system.
MEMBRANE-
PENETRATION FIRESTOP MEMBRANE-PENETRATION
FIRESTOP SYSTEM
The actual material, device or
construction that is installed to
protect the opening through the
protective membrane on one
side of a fire-resistance-rated
assembly (see Figure 2.6) Everything involved in protect-
ing the penetration and resist-
ing the spread of fire from one
side to the other. This includes
the original fire-resistance-rated
wall or horizontal assembly, the
item penetrating the assembly
and the materials/devices that
are installed to close and protect
the penetration (see Figure 2.6).
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