Roof Operations: Extending the 7-9-8 Ventilation Cut

[6hooligan]

Solid vent work. Oh and ffembrrt I'm glad I don't live in your first due. I cut on roofs of this type on a regular basis . It is about your situautional awareness ,training level , competence level, fire location and progress. Never, say "never".

[ffembrrt]

Nice demonstration. What caught me by surprise was when he pulled that last section of roof, it exposed a wood truss with gusset plate. This type of roof should never be cut or even operated on. If we are cutting a roof, then I'm assuming a tax payer or top floor fire, in which case once we recognize we have a light weight wood truss, all members should be removed from roof operations immediately.

[BrotherhoodInstrctrs]

@ffembrrt I could not disagree with you more. It is perfectly acceptable to cut parallel cord wood truss roofs. The saw operator must be cognizant of construction type and not sink the blade deeper than necessary to avoid cutting through the top cord. Once light weight construction components are found that information should be relayed to interior units and the incident commander, especially if fire has entered the cockloft.

[BrotherhoodInstrctrs]

If heavy fire is discovered in the cockloft with light weight construction components such as this, a withdraw of members off of the roof and out of the top floor would be in order. If the roof is stable enough to have crews operating under, there had better be members on top of it to perform vertical ventilation and other valuable roof tasks. Thanks for commenting, don't hesitate to disagree with us. Disagreements force us to justify our teachings and allow us to learn from each other.

[Blgtn43]

Nice, thanks.