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of Home Improvements

*Question & Answer Fire Blocking*

Dear Bob

I hear the term Fireblocking used by builders, can you explain exactly what this means?

Dear RT

Fireblocking is defined by the International Building Code as the use of approved building materials installed in concealed spaces to resist the migration of fire and hot gases.

The overall objective is to stop the extension of fire and hot gases through penetrations in walls and floors AND to
block the free passage of fire and hot gases within a concealed space.There are a great variety of products and
materials that will accomplish both aspects of this fire safety objective.While there is still a need for some develop-
ment to determine what is most effective, there is no doubt about what is not effective:leaving penetrations and
concealed spaces unprotected or insufficiently protected, thereby exposing occupants to the risk of tragic failures
we have already experienced from the not-so-distant past.

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