A friend of mine had some rehab work done on a one-story single-family
ranch-style home, and the local inspector cited some "fire blocking" issues.
My understanding is that the actual citation was for "not fireblocking all
penetrations of wires, ducts and plumbing". I think it was in reference to
where the wires, ducts, and plumbing go through the ceiling and into the
attic space, but I am not sure. This makes sense to me, since I assume the
point is to prevent a fire from spreading from the living area into the
attic space and roof area.
Is there any particular type or brand caulk etc. that is usually used to
seal these openings and meet the code requirements? If some of the openings
are too large for caulk, are there other techniques that are used to seal
the openings and meet the code requirements?
And, just out of curiosity, my friend was trying to find where he could read
the actual building, fire, or construction code citations about this to see
what they say. He was looking at the International Residential Code (IRC)
but couldn't find it there. Can anyone point out any actual code citations
about this that I could pass on to him from the IRC, or National Electrical
Code, or International Plumbing Code, or wherever? He (like me) likes to
see the actual code references to see what they say, but we are having a
hard time locating the specific code citations.