Dr. J
Silver Member
2009 IBC, 716.6.1 states in part:
"...a duct constructed of approved materials in
accordance with the International Mechanical Code that penetrates
a fire-resistance-rated floor/ceiling assembly that connects
not more than two stories is permitted without shaft
enclosure protection, provided a listed fire damper is installed
at the floor line or the duct is protected in accordance with Section
713.4."
Section 713.4.1.1, exception 1 states in part:
"Penetrations by steel, ferrous or copper conduits,
pipes, tubes or vents or concrete or masonry items
through a single fire-resistance- rated floor assembly
where the annular space is protected with materials
that prevent the passage of flame and hot gases sufficient
to ignite cotton waste when subjected to ASTM
E 119 or UL 263 time-temperature fire conditions
under a minimum positive pressure differential of
0.01 inch (2.49 Pa) of water at the location of the penetration
for the time period equivalent to the
fire-resistance rating of the construction penetrated."
What materials are suitable for either a 1 or a 2 hour fire resistive floor? Is this just mineral wool?
"...a duct constructed of approved materials in
accordance with the International Mechanical Code that penetrates
a fire-resistance-rated floor/ceiling assembly that connects
not more than two stories is permitted without shaft
enclosure protection, provided a listed fire damper is installed
at the floor line or the duct is protected in accordance with Section
713.4."
Section 713.4.1.1, exception 1 states in part:
"Penetrations by steel, ferrous or copper conduits,
pipes, tubes or vents or concrete or masonry items
through a single fire-resistance- rated floor assembly
where the annular space is protected with materials
that prevent the passage of flame and hot gases sufficient
to ignite cotton waste when subjected to ASTM
E 119 or UL 263 time-temperature fire conditions
under a minimum positive pressure differential of
0.01 inch (2.49 Pa) of water at the location of the penetration
for the time period equivalent to the
fire-resistance rating of the construction penetrated."
What materials are suitable for either a 1 or a 2 hour fire resistive floor? Is this just mineral wool?