In Ontario, for a house with secondary suite, with respect to the ceiling fire protection of the furnace room where sprinkler system is installed, I found there is a lot of confusion about whether or not the ceiling of the furnace room is required to be drywalled:
Here is a fire code brochure from the City of Barrie: https://www.barrie.ca/sites/default/files/2022-07/FireCode-Brochure.pdf
"While sprinkler systems are not mandatory, their installation may lower the requirements for fire containment in a room with a fuel fired appliance. The installation only exempts the ceiling above the appliance(s) from fire rating..."
Question: is it clear that the ceiling of the furnace room is required to be drywalled?
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Here is a guide from the City of Collingwood: https://www.collingwood.ca/sites/de...nts/b408pgresaccessoryapartment20210915_2.pdf
On page 18, there is a sketch showing the ceiling of the furnace room is not drywalled. and on page 25:
" Notes to Table B: 1. Horizontal fire separations are waived in a service room where the service room is sprinklered (discussion on placement & number of heads required will be determined on site) and the installation satisfies the following: ..."
According to the sketch and notes of the guide from Collingwood, the ceiling of the furnace room where there is sprinkler system is not required to be drywalled.
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The following is from Ontario Building Code Division B – Part 11 Table 11.5.1.1.C.
"C149 9.10.9.10.(1)
Ceiling fire separation need not have a fire-resistance rating where sprinklering,
subject to C.A. C27, of fire compartments on both sides of vertical fire separation is
provided and where such fire separation is not required to exceed 1 h."
Question: Is the ceiling of the furnace room required to be drywalled when the Ceiling fire separation need not have a fire-resistance rating?
Here is a fire code brochure from the City of Barrie: https://www.barrie.ca/sites/default/files/2022-07/FireCode-Brochure.pdf
"While sprinkler systems are not mandatory, their installation may lower the requirements for fire containment in a room with a fuel fired appliance. The installation only exempts the ceiling above the appliance(s) from fire rating..."
Question: is it clear that the ceiling of the furnace room is required to be drywalled?
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Here is a guide from the City of Collingwood: https://www.collingwood.ca/sites/de...nts/b408pgresaccessoryapartment20210915_2.pdf
On page 18, there is a sketch showing the ceiling of the furnace room is not drywalled. and on page 25:
" Notes to Table B: 1. Horizontal fire separations are waived in a service room where the service room is sprinklered (discussion on placement & number of heads required will be determined on site) and the installation satisfies the following: ..."
According to the sketch and notes of the guide from Collingwood, the ceiling of the furnace room where there is sprinkler system is not required to be drywalled.
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The following is from Ontario Building Code Division B – Part 11 Table 11.5.1.1.C.
"C149 9.10.9.10.(1)
Ceiling fire separation need not have a fire-resistance rating where sprinklering,
subject to C.A. C27, of fire compartments on both sides of vertical fire separation is
provided and where such fire separation is not required to exceed 1 h."
Question: Is the ceiling of the furnace room required to be drywalled when the Ceiling fire separation need not have a fire-resistance rating?