Bottom Cut is described as what?

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Prepare for the OCFA Vertical Ventilation Exam with comprehensive multiple-choice questions tailored to enhance your firefighting skills and knowledge. Each question is designed to provide insights and explanations for a thorough understanding. Get exam-ready with our resources!

Multiple Choice

Bottom Cut is described as what?

Explanation:
Bottom cut refers to the cut through the roof decking that completes a ventilation hole. In vertical ventilation, you work toward creating an unobstructed opening to the attic for smoke and heat to escape. After laying out and making the initial cuts to form the opening, the bottom cut finishes the process by severing the remaining decking so the hole is complete and the exhaust can flow freely. This cut is through the decking itself and is performed after other cuts have established the opening; it is not the first cut, nor a skim cut, and it isn’t a cut parallel to the rafters.

Bottom cut refers to the cut through the roof decking that completes a ventilation hole. In vertical ventilation, you work toward creating an unobstructed opening to the attic for smoke and heat to escape. After laying out and making the initial cuts to form the opening, the bottom cut finishes the process by severing the remaining decking so the hole is complete and the exhaust can flow freely. This cut is through the decking itself and is performed after other cuts have established the opening; it is not the first cut, nor a skim cut, and it isn’t a cut parallel to the rafters.

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