Knowing and being familiar with building construction is a great thing.  If you know how its put together, it helps to understand how fire will effect it and how it comes down.  Remeber to get back to the basics.  Without general basic fire fighting knowledge and skills you really dont have much  Get out and train.  Below is a good picture that shows the many types of trusses out in the field.  Remeber with trusses, if one part fails, the whole thing fails.  Beware of light weight construction and how to recognize it.   Stay safe.

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