Ventilation in 32 seconds

During a Training excercise. We went out to try a new chain that we had heard about. We have used the Bullet chain for years and started to hear about the Raptor. This video is of myself using the same saw cutting two holes. On one hole I used the Bullet chain and on the other I used the raptor. What you see are the results. The raptor cut fast but the bullet chain sustained less damage. I would love to have a a few more raptor chains to try but we used the two we had up. It's a great chain I really liked it. It cuts fast! Don't know if it will last. I recomend you do your own test and it is very worthy of looking at. We have a very old town with some nasty roofs so durability is very important. Even so I recomend both chains very highly

Category:

People & Blogs

Tags:

• Richmond
• California
• Fire
• Ventilation

[707westy]

Why make a kerf cut if you're gonna make a 3 rafter anyway? We usually just make kerfs to find smoke/fire.

[MarcLucero]

It is not a kerf cut.. a kerf is a straight line cut the small "knock out"cut is just a way to make it easy for your hookman to grab the section and louver it. IT IS NOT necessary but if the if your sawyer is good, he is thinking of making everyone job as easy a possible and this is one little extra he can give the hookman.. Thanks for the watching stay safe.

[trk661]

What is the purpose of the small triangle???

[MarcLucero]

It does two things and they are your preference to use it or not. First is two confirm rafter direction and second is to make it easy to grab with a roof hook. Just something I learned from the NYFD Brothers.

[TheWobblyboy]

te

[fire1937]

Dont know why everyone is complaining, thats a textbook vent operation. He didnt cut through the truss and it was fast. The knock out cut is just the vent mans preference and is nice to have sometimes. As for using a roof ladder you have to remember guys that not everyone comes off the rig with 4 firefighters and 30 more in the yard, sometimes you gotta grow a sack and do what needs to be done with the man power thats given to you. Be safe brothers, live to train...train to live! God Bless.

[INF116]

Just so its clear he didn't cut through any rafters

[richeykw]

I caught the deep cuts too, but he's got the right idea. Other than that, I like to see top cut, then cut on side furthest away, then bottom and lastly side closest to u. This provides more stability and less likely to fall through your own hole. Last cut u make, closest to u, u should have both feet on the roof ladder.

[trangbak3]

Jeez...cutting kinda deep there. Poor rafters.

[superrhino100]

Of course in real world ops with the house on fire you would be doing your cuts from a roof ladder so if it collapses you don't fall through and there is no possible way to ventilate a roof in 32 seconds if you don't leave the roof ladder...try it if you don't believe me...and if you think I'm wrong, I'm not...I teach this stuff every week and my recruits bring me videos like this and ask why they can't do it this way...you people are going to get someone killed with this crap!

[bkymic]

Nice job.

[rabidfish02]

I cringed when I noticed you cutting so deep... Haha. Kind of a small vent hole, but otherwise very good technique for not having a chain guard.

[MrAxeEdent]

I remember in my training, the instructor taught us not to bury the saw too much..............he said only a few inches are needed so you wouldnt cut through the rafters.

[sirhcdeer]

Interesting technique, but I'm going raise the BS flag on the triangle cut. It's really not needed. Someone on here mentioned it makes it easier for the hook to grab, but really all you need to do is push the louver down, and then pull it open farther.

As far as finding your rafter location, cut #1 should be a small cut (about 12") towards the ladder, so that you can feel where the rafter is. Cut #2 is the head cut. Cut #3 is the far side, Cut #4 the bottom, and Cut #5 the near side.