Consider this cut for steep roof operations. It adds a level of safety and is still very functional. I like to do it with 2 saws also to make the operation faster. If the construction allows for a louver consider making dice cuts every four feet against construction to assist the louver.
Showing posts with label AFD Ventilation. Show all posts
Showing posts with label AFD Ventilation. Show all posts
Monday, March 17, 2014
Milwaukee cut
Consider this cut for steep roof operations. It adds a level of safety and is still very functional. I like to do it with 2 saws also to make the operation faster. If the construction allows for a louver consider making dice cuts every four feet against construction to assist the louver.
Friday, January 10, 2014
Friday, December 20, 2013
Roof Vent AFD
Wednesday, October 23, 2013
Flashover training
This is flashover training we do with each cadet class to give them skills to reduce the risk of getting caught in a flashover environment. Control openings always good stuff.
Tuesday, October 8, 2013
PPV Fan Oil Change Out
FF Schminke (E26A) demonstrates how to change the oil on our PPV fans. When we have a fan that does not run smooth or dies out this will usually fix the issue.
Monday, September 16, 2013
Roof Remodel
Engine 26A stopped by a building remodel to check out the roof construction. This was a great opportunity to see two types of roofs and extended to a discussion of parapets, void spaces, and forcible entry.
The construction crews were removing a "gravel roof" and replacing it with a "TPO" (Thermoplastic Polyolefin) roof. The gravel roof consists of metal decking, foam (about 2"), tar, and gravel. This particular roof had two layers from a previous remodel. The foreman on site said city code only allows for two layers so they had to remove both layers before installing the new roof. The building across the parking lot only has one layer so they will put the new roof directly on top.
The TPO roof consists of metal decking, insulating foam (3.3" in this case), and the TPO membrane. The foam may be thicker in other applications. The foreman said a 1/2" of foam adds 6 to the R-value.
Take a look around out there after your next call and see what you find.
The construction crews were removing a "gravel roof" and replacing it with a "TPO" (Thermoplastic Polyolefin) roof. The gravel roof consists of metal decking, foam (about 2"), tar, and gravel. This particular roof had two layers from a previous remodel. The foreman on site said city code only allows for two layers so they had to remove both layers before installing the new roof. The building across the parking lot only has one layer so they will put the new roof directly on top.
The TPO roof consists of metal decking, insulating foam (3.3" in this case), and the TPO membrane. The foam may be thicker in other applications. The foreman said a 1/2" of foam adds 6 to the R-value.
Old roof, two layers.
New foam layer, the TPO membrane is being pulled back.
Stacks of foam insulation.
So what's your plan to cut? Will you handle the gravel roof differently from the TPO? The rotary saw probably will not go deep enough on one pass. If you use a rotary saw you will likely have to make one cut remove the material and them make a second cut inside the first. The chain saw will work on many of these materials but you have to be careful about hitting metal beams as they can throw or break the chain.
10' drop off behind parapet.
From the inside.
Void space in the parapet.
Interior of building.
Forcible entry discussion. How would you handle this door? We discussed starting traditional but it probably would not work. With a good size-up and prior knowledge you might realize this is a panic/drop bar that is most always engaged. It is not removed everyday like a traditional drop bar.
We discussed cutting the bolts or completely cutting a rectangle around the pair of bolts. Last resort might be a doggie door (horizontal cut, edge to edge under the panic hardware.
Take a look around out there after your next call and see what you find.
Monday, September 9, 2013
Door Control Owning the Attack Corridor
http://www.youtube.com/watch?v=-Uans40KdVI
LA county fire attack study UL
This video is along with the UL study about to be released. It considers flow path and how the introduction of air can increase the chances of flashover. Give this video the 7 minutes it deserves. Love the message in the video to go ahead and cool the upper atmosphere as you advance into the structure. You control the fire with water and not giving it oxygen, it goes out plain and simple.
LA county fire attack study UL
This video is along with the UL study about to be released. It considers flow path and how the introduction of air can increase the chances of flashover. Give this video the 7 minutes it deserves. Love the message in the video to go ahead and cool the upper atmosphere as you advance into the structure. You control the fire with water and not giving it oxygen, it goes out plain and simple.
Friday, June 7, 2013
Chain Saw Bar- 16" vs 20"
Our department runs 16" chain bars. We are currently in a trial period gathering feedback on 20" bars. We found the 20" bar keeps the firefighter more upright and increases reach, especially when working off a roof ladder.
We are looking for more feedback. What size bar do you work with? Do you think the 20" is far superior over a 16" or is it negligible?
We are looking for more feedback. What size bar do you work with? Do you think the 20" is far superior over a 16" or is it negligible?
If this video does not play, click here http://youtu.be/_gDpVt-A7rk
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