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What Do You See?

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I am a big fan of companies getting out and scoping out their response area. Just when you think you have seen it all, something catches your eye that you missed the other 100 times you passed it by.  We all know what I am talking about.

Look at the picture above. As a fire service leader, what do you see?  What have you learned from your years of experience and training about these types of buildings?

What is of significance?

What is of significance that you see right away but the new guy might not have a clue about?

As an officer that will be making the initial decisions on this building you have a great responsibility to know as much about this structure as you can.  It will certainly help you to make the best possible decision about your tactics.

Take the time to sit with your crews and look at the features of this building. What type of construction is it?  What type of occupancy is it?  Why are both so important?  It just might mean the difference of saving the occupants and yourself.

Stay safe and be careful.

Residential or Commercial Alarm?

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Residential or commercial?

Even in this downturn in the economy, there are still very large homes being built.  In many cases these homes are over 5,000 square feet of total living area.

This creates a significant problem for many fire departments, especially smaller, more rural ones, in regards to tactics.

We are fighting these fires with traditional methods and resources. In many cases it just isn’t enough.  Add to the those issues that these are all built using light-weight construction, we have a recipe for disaster, as we have seen across our country.

Firefighters are falling through floors immediately after entering.  Roofs are collapsing much earlier than before.  Contents are causing fires to burn faster and reach untenable temperatures much earlier in the fire.  The larger area requires the firefighters to search longer and further into a building than in the past.

We need to look at these structures a little differently when confronted with a working fire in them.  Here are some considerations that should not be overlooked on these fires:

1. Your going to need more water, get it rolling fast.

2. A 360 is a must. You don’t know what you might have on the back side. 4 stories, victims hanging out windows, location of the fire, etc.

3. A larger line. It may be very prudent to pull a 2 1/2 as your first line of attack.

4. More manpower may be needed due to the multiple functions needed because of the size.  You may treat this alarm like a commercial alarm.

5. Search lines. In these very large homes, it is not out of the question to use a search line.

These are the primary items that you can’t discount. You may need to think differently on these larger home fires to have a positive outcome. I have seen departments burn these houses down because they were using tactics for an 1100 square foot building on a 5500 square foot house.

With the open floor plans and the light weight building materials, fire develops very fast in these homes. Anticipate that and plan for it. Adjust and have back up plans.  Never be afraid to regroup to get it right.

Feel free to add to the concerns, I encourage you to contribute. After all, that is what makes this so much fun.

Stay safe and stay low. Don’t forget to hydrate all day in this heat. Carry around some water and sip on it all day.

Apply the Lessons Learned

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With the fire service and others taking this day and weekend to remember the Charleston 9, along with other high profile LODD, I wanted to do something different. I wanted to look at how we can specifically apply the recommendations that were listed in the report on the Charleston Super Sofa Fire.

I am going to do this just one at a time and I will likely take several weeks to cover them all.  It is very likely that some will intermingle with others, and will be covered together.

Today I want to look at pre-incident planning.  For me, this starts with when the building is being built.   In reality, it is a combination of both, during construction and visits and regular intervals.

conduct pre-incident planning inspections of buildings within their jurisdictions to facilitate development of safe fireground strategies and tactics

Light weight, engineered floor joists.

Today, we stopped in on a new restaurant.  As you can see from the photo it is all light weight, engineered construction.

The comment was made that we need not enter this building if it burns.  Well, in an ideal world that is correct.

The fact is is that we just don’t know what we will be tasked with doing if this building catches fire.  We can’t predict what time of day or who will or will not be in it.  What we can do, however, is know what this building is made of and the hazards associated with those materials and products of construction.

We also must be prudent in our tactics when arriving, like lifting ceiling tiles before we get too far in the building, looking for fire running above us.

This visit provided some great information aside from the type of construction and those hazards associated with them.  First, the building is completely sprinklered.  That is a plus.  We located the FDC and the nearest hydrant.  Both good things.

Concealed spaces over the booths.

We found that this concealed space had sprinklers dropped down to the ceiling level, but none were in the space or immediately above it.  An easy place for fire to spread quickly.

As we discussed earlier in the post, most would say we don’t need to enter this building.  In theory I agree, but we never know what we are facing when we arrive.

Something that we learned was that there is an area on the east side of this building, Side D, that is built with dimensional lumber and is sprinklered as well. The roof construction is not truss and the walls are all dimensional studs.  What can we take away from this?

Side D construction was different than the rest of the building.

We discussed that if there needed to be an attempt to make entry, it would be best to try to take a stand from this area. It is not part of the rest of the roof system and will likely hold up a little longer with the dimensional lumber.

Another idea was that RIT would be staged near this entrance if there would happen to be interior crews making a rescue or knocking down what was perceived as a small fire.  They know that there is a straight shot to the middle of the building through a more secure type of construction.

With all that being said, accessibility to the building needs to be looked at; where will multiple units be staged?  Where will you place ladders and are there overhead dangers?

It is important to look at all of these factors to make a good decision based on prior knowledge.  We also understand that Plan A doesn’t always work so have a Plan B ready based on the planning you did on the building.

There are many other components about pre-incident planning that I didn’t mention, but hopefully you get the point.  Get out and visit these sites.  Be involved and have discussions about how you would perform at a fire here.

Above all, don’t let the lives lost at any LODD be lives lost in vain.  Learn from their mistakes, but don’t be critical, we have all screwed up and been lucky enough to get away with it.  Be constructive and train on the recommendations so that you don’t repeat history.

Stay safe and please, never forget those lost in the line of duty.  We owe them our promise to train hard and to learn from them.

What Is Above You?

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If you pulled up on this store front or one like it, what is your first course of action?

With a fire or just a haze, one of the first things that needs to be done, with an attack line ready, is to start looking above the drop ceiling.  Even if it is drywall, you have to see what is above you in these occupancies.

These types of occupancies are found in fast food establishments, sit down restaurants and strip mall type buildings.  Most of these new commercial buildings are all light weight, truss, engineered lumber construction.

By lifting the tiles and breaching the ceiling, we know how far the fire has advanced before committing people into these buildings.  The concealed spaces are important for initial fire attack in these situations.  It might indicate that the front door is as far as you go.

You have to consider, however, that the overhang outside the front door could be compromised if fire is found in the void spaces of the ceiling.  Fire could be racing through the soffit of the overhang out front.  Additional weight of signs will also cause early failure of these building features.

Remember to think on your feet and be sound in your decisions.  These decisions come from experience and training.  So, train hard and often.

Stay safe and be careful.

Photo from the Fillmore Gazette

Light Weight Strip Malls

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Light weight construction is everywhere.

Light weight construction is everywhere.

This is a picture of some light weight trusses being set on a commercial building.

As you look at this building you can see that it seems to be a series of stores or spaces in a commercial building. Most likely a strip mall type building.

In the old days, these were block buildings with steel roof components, structurally speaking.  They were fairly sturdy buildings, still not great, but heavier construction.

Now, it is all light weight wood.  No doubt they will put a facade on this building that looks like rock or brick, but it is a house of commercial occupancies.  It is also easy to see how fast a fire in the concealed space will consume those truss members, causing very early failure.

In addition, remember what goes on top of these buildings; HVAC units.

Just be aware of what is in your area. Stop by and look at these buildings.  Make sure they are properly building fire barriers and walls with penetrations fire stopped.

Use your training and common sense when these buildings burn, they are dangerous in today’s fire service.

Take care and stay safe.

More on Light Weight Construction

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Know the dangers of light weight construction!

Know the dangers of light weight construction!

Check out this article for some great information and links in regards to light weight construction and the hazards that are associated with it.  All firefighters and officers need to read this.

Battling the Hidden Danger

Wood Trusses Can Be Killers!

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This is a great video of wood trusses in fire conditions versus dimensional, stick-built lumber under fire conditions.

We all know about the hazards associated with wood truss roof systems, but it is worth looking at again, and again and again.

Training and recognition are key in keeping ourselves and our crews safe.

Check it out and pass on to others, it really is a cool video.

Multiple Story I-Joists Floors

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I-joists are everywhere!

I-joists are everywhere!

This is a picture of a multiple story house being built with engineered i-joists.

We have posted, and probably will continue to do so, pictures of these i-joist on the main level.  Those pictures have been associated with text that tells of firefighters falling into basements.

Just remember that when you go to the second floor to search with fire below you, that second or third story floor is made of these i-joists.  You have to be just as diligent above the main floor as you are on it.

The use of TIC’s are appropriate and should be used, but not solely depended on.  Have good situational awareness and try to coordinate all searches with suppression and ventilation.

Be careful and don’t get complacent.

Thanks again for checking us out, stay safe.

Venting the Roof

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Take a look at this video and let me know what you see. I posted the still frame from this video and had some great responses. Now, here is the whole thing.

What do you see and what would you do different if anything?

Identifying RTU’s From the Interior

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This is a good indicator that there is a roof top unit.
This is a good indicator that there is a roof top unit.

 

 

The last post showed the RTU from the exterior. Most can be identfified that way from the outside or from getting on the roof through a hatch.

But, what if the building is very large and tall?  In some instances the make up of the building doesn’t allow for easy viewing of the roof top.  The return air can be seen going into the RTU possibly indicating that there is additional load on the trusses.

Just be aware of what is above you.  Some of these large buildings will have several of these on the roof just waiting to come crashing down.  Follow the duct work and see where it goes. If you don’t see the full unit, it is likely on the roof.

In addition, look at the roof system.  Who can identify what the added danger is?

When inside, look for this type of situation.

Take care and stay safe.

What’s Above You?

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What's Above You?

What’s Above You?

When entering a commercial building you need to  take into consideration that the roof may be carrying a heavy load.

Although the roof systems are designed to handle the added load under normal conditions, when attached by fire, these roof top units will come crashing down.

The time to find out about what’s on the roof is not during the fire, but during inspections and pre-planning visits.  Get familiar with these buildings before it’s dark and smokey.

Stay safe and be careful.

The Plain Clothes Vent Man

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Now this is how you ventilate!

Now this is how you ventilate!

This is a bit extreme, don’t you think?  I just thought that with the past few days of posting roof ops and vent posts that this was appropriate.

I am sure that nobody reading this blog post would ever allow this to happen.  But, apparently, it does happen somewhere.

I don’t know if this is a volunteer that just showed up or the homeowner.

Does it really matter?

Anyway, I thought you might all enjoy this.

Stay safe and take care.

More Roof Ops

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Is there anything we are forgetting here?
Is there anything we are forgetting here?

First, let me make it clear, I was looking for a picture I have of a crew working on the roof the correct way when I came across this one.

I know, we have beat the first Roof Ops post to death and if you don’t want to post on this one, I understand.  I just figured while we were on the topic I would throw this one out there while I had it.

I know that there is not a lot of smoke, and the pitch is shallow and it doesn’t look like a great deal is going on.  I know I am going to hear about how this is nit-picking and whatever.  But, this is how we get hurt and killed.

It’s when we let our guard down and get complacent that bad things happen.  How many times have read a line of duty death or injury report and asked, “what were they thinking?”

I will find the picture with the correct way to operate on a roof safely and post it to show I am not just showing the bad stuff.  It’s just so easy to find.

Anyway, stay safe and be careful.

Is It Real? Or Is It Something Worse?

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Would you be able to tell that these tiles were solar panels or not?
Would you be able to tell that these tiles were solar panels or not?

Here is a picture of a roof with slate tiles for the roof covering. Nothing really to note here, right?

Looks like an area had been repaired or replaced but is still the same slate tile, right?

The slight color difference is probably from being newly installed or repaired.  But, would it look any different at night? In the rain? How about snow covered?

The truth is, those different colored panels are solar tiles for solar enegry. Yes, they are energized and could cover an entire roof.  If your wondaring, yes, they come in different colors too.

These solar panels aren’t that new to building contruction, but they always stuck out like a sore thumb. Now, with new technology, companies are able to make these panels “blend in” and look very much like the rest of the house and roof.

If you pulled up on one of these houses would you know how to operate safely on this roof?

What is the primary concern with these types of roofs?

Post your experiences and/or ideas about this new challenge that we will all someday see.

Stay safe and be careful out there. Train hard and often.

Large Residential Homes

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Big Houses

Most jurisdictions have an area or two that have these semi-mansions in them. These larger homes are all built with light-weight construction and they burn fast.

Additionally, our typical hose lays may not reach all parts of the home and search and rescue operations will take longer than in a 1000-2000 square foot house.  We have to prepare and train for these changes.

Doing a 360 of the building is a must. We have to know what we are dealing with on all sides. We may find a better, more appropriate entry point or see that we have a walk out basement to contend with.

Train for these fires, get used to knowing how much air you have available and how much you use when your stretching hose and doing searches. Some of the same techniques used for commercial fires can be deployed on these residential fires.

The use of skid loads can help gain more line from the front door. Using a search rope can help get in and out easier and safer.  Just use common sense and be prepared.

Try to get out to these places while they are being built just to see the layout and size of these homes.  A little familiarity may go a long way.

Stay safe and try to keep warm, it’s freezing.

Roof Ops

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9-5-03v

We must have a very good idea of how far this fire has traveled in the attic space.

This is something we need to be careful of. In some instances you may not have a choice, but putting water in a vented roof while on the roof is risky. Master streams, especially elevated if available and accessible would be ideal. But, again, we are limited by our resources.

Of course, if we are going to go this route, we must have a very good idea of how far this fire has traveled in the attic space. We certainly don’t need firefighters on the roof if we are taking a defensive position.

In addition, safe roof operations would dictate that we work off of a roof ladder. The pitch is not that steep, but the roof is wet and it is just safer and appropriate to work off of the roof ladder.

Keep putting ‘em out and stay safe. Anyone see anything else I missed here?

More Than Just Floors

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Engineered I-Joists being used in construction of roofs.

Engineered I-Joists being used in construction of roofs.

We have been learning about these engineered i-joists over the last several years and we know about the dangers of falling through floors that seem to be intact.

As you can see, these building components are also being used for roofing systems. We are already careful because of the history of light-weight truss systems, but I can see the same problem with these i-joists.

Just remember, the houses are getting bigger and lighter and they are burning faster. Situational awareness and a strong understanding of the risk vs. benefit theory is a must.

Keep you and your people safe and get to know what is being built in your area.

Hanging by a Thread

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Okay, its not really a thread, but it may as well be. These truss systems are popular for overhangs and porches on commercial and residential buildings.  Typically, the top end will sit on a nailed 2×4 or rest on the top of the wall and toenailed into the joist for I-joist.

These are very danagerous and will fail easily under fire conditions.  Always take a look above you before you enter the building of any type.

On another note about these overhangs, canopies and porches; when using search lines, make sure you tie off outside the building which inlcudes these overhangs, canopies and porches. Get outside of these areas and into an open area free from any building components.  As always, stay safe and be careful.

Oh, The Good Old Days are Gone!

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Remember the good old days when your commerical buildings were block and mortar or steel buildings with large dimensional lumber? Those days are long gone and it has made our job that much more dangerous.

When this building is completed, it will likely have a facade giving it the look of a brick, block or non-combustible building, but obviously, it is completely wood frame.  If you don’t get involved with new construction and pay attention, you could miss what is happening here.  Your companies could pull up on a commercial fire and be under the wrong impression about the makeup of this building and make a tragic mistake.

These buildings fail faster and are more and more common.  Stop and look at what is being built and how it is being built, it just may save your life.

As Brannigan said, “The Building is Your Enemy!”

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This is a typical scene in just about every jurisdiction in America.  The homes are getting bigger while at the same time getting “lighter” in their construction and make-up.  Take the time to go by and look at these buildings while they are being constructed.  Identify the systems being used and the layout of the floor plans.

Most of these have finished basements and are not easily identified from the front of the property.  This is a tinder box that will burn fast and furious if it catches fire.  The light weight systems will fail early.

Doing a complete 360 is imperative and sounding floors must be habit when entering all structures.  Work smart and train like your life depends on it.  Stay safe out there.

Up Above the Ceilings

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This is a picture of a fast food restaraunt after a fire.  The fire got into the void space and spread very quickly.  Crews were pulled out early and there were no injuries.  The building was a total loss.

The focus of this picture is the fall out of from the ceiling.  As you can see, when these suspended ceilings fall, many opportunities for entanglement fall with them.  A firefighter may not see these hazards because of conditions but are still in danger of being trapped by the fallen materials.

In addition, some of the wires could still be “live” and could energize other conductive materials that have fallen with them.  Be aware and prepared.  This is why you need tools and a radio when entering hazardous conditions.  Stay safe and have a great week.

Bowstring Trusses

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Most of you know what this is.  This is a picture of a building with bowstring trusses.  We have all heard about the dangers of these buildings and how they can collapse quickly during a fire.

Many of these buildings have large storage capacities and in many cases are used as automotive repairs and sales shops.  The quantity of combustibles and flammables can be large, greatly increasing fire intesity, thus making the failure more imminent.  Make sure that you are aware of these buildings and plan accordingly before there is a fire.  I can’t impress enough, even if you don’t have an official inspection program, you can still look at these buildings during regular business hours.

In most cases, the owner is not going to say a whole lot if you explain that you are just familiarizing yourself with the building so you know how best to handle an incident at their business. We talk on that another time, but get out and see what is in your area.  As always, stay safe.

Routine Preplanning

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This picture doesn’t show anything spectactular or out of place.  What it does show is what every community in every jurisdiction has; subdivisions.

These subdivisions will have dozens to hundreds of houses built by a single contractor or just a handful of the same contractors.  These are prime locations for EMS calls.  Those EMS calls are prime times for preplanning these residential occupancies.  Many fire departments do not regulate or permit the construction of single-family construction and therefor we don’t get into these buildings unless there is an emergency, which is sometimes too late.  We have an opportunity to get a good look at building features when we enter these structures for EMS calls.

You don’t have to go snooping around, but you can get a pretty good idea of the layout just from seeing the inside.  You can know where the stairs are and how many bedrooms.  These features will likely be the same or very similar throughout the entire subdivision.  When driving in and out, take the time to look for hydrants and alternate access points.  As always, stay safe and be careful.

Overhangs, Concealed Spaces, Facades

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Here is a look at a concealed space on a mercantile building that is being added on to. This is not built into the building, but hangs on the outside.

Fire can race through here and collapse on firefighters entering and leaving the building during suppression operations. Care must be taken to open this space up to extinguish any fire and determine extent of damage. If there is any doubt about the integrity of this component, avoid it.