Firestop pan and chimney question

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#1

Originally Posted By: jlybolt
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http://www.nachi.org/bbsystem/usrimages/1/ ]

#2

Originally Posted By: clawrenson
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Some chimneys vent pipes are designed with a 1" clearance to combustible materials. Here in Canada that is a common requirement to meet building code. However (based on your photo) even without a heat shield, I would note concern with the insulation within that area in contact with the chimney pipe.

–
Ontario Home Inspections Inc.

#3

Originally Posted By: ckratzer
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James


You are correct.The fire stop should be snug.The same thing applies for a furnace vent pipe.
The metal stop is non-combustubile so the 1" clearance thing would not apply.Leaving clearance in both cases would do exactly the thing that is trying to be prevented...updraft.

#4

Originally Posted By: jlybolt
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What type of insulation is fire resistant? I read an article somewhere on this subject about I cant find it.

#5

Originally Posted By: clawrenson
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1? clearance


http://doityourself.com/energy/airleaksflues.htm


fire resistant insulation


http://www.rockwool.com/enrock/fire_resistant_insulation.asp

–
Ontario Home Inspections Inc.