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    1. Safety & Health

    Know Your Enemy #45

    Nov. 8, 2004
    It may not be long before some officer(s) face criminal charges for negligence, after sending firefighters into a building without a thermal imaging camera to seek out the hidden fire.
    We continue with our pictorial discussion of trusses which started with Know Your Enemny #44, Previous units are archived.
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    Photo By Frank Brannigan Photo R244 - This structure shows the value of trusses. To build a conventional building this wide would have required heavy roof beams or bothersome interior columns. The walls would need to be much heavier to carry the weight of the long rafters. The truss provides clear spans at low cost. Know your buildings and use the thermal imager (Firefighter

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