Every room in a residential structure has a window. A 360 will tell you where the main body of fire is. You can extinguish the room very quickly from the outside before a crew can get dressed and get the front door open. Why go inside to fight a fire you can access from the outside? It makes no sense and is unnecessarily dangerous. If the structure is tight except for that window, all the pressure, heat, smoke and water vapor will go out that same window not deeper into the pressurized structure. By WAITING to stop the fire from the inside, you are exposing any victims and other materials to that heat. If you have to go inside and you vented the windows correctly based on where the fire is, a tight cone of water will cover more material faster and eliminate the flames which create and maintain water vapor at dangerous temperatures. All the gasses will leave the structure through the window if the entry point air flow is controlled. Straight streams at close range take Much longer to eliminate the flames. MOST, fire fighters don't Think about eliminating flames fast so using a cone will help to do the work that they aren't doing.
JB91710 And what does that strategy do to protect the victims that may be interior? You assume the room is “tight” based on what? Is the door even closed or intact? This post is somewhat dated but the suggestion of “a cone” of water is in direct contradiction to the facts and studies relating to combination or straight streams for fire attack. I would suggest taking a look at the latest UL studies.
@@jakenoa I said tight Structure, not tight room. If a room is burning and you enter the structure to fight the fire, the pressure release location will be at the door where you entered which will allow the flames to exit that room and head toward the door. When you vent the fire room windows and apply water through the windows onto the burning material, the rest of the structure is protected. Even if that room's interior door is open but the rest of the structure is tight, the release location will still be the windows. It makes no sense to fight a fire from the inside that you have access to from the exterior. Also, and as I said, a cone of water covers more material faster and cools the gasses better than any straight stream. Putting UL's or any other agency's stamp on something doesn't automatically make it right. It doesn't matter who says what, common sense and logic dictate what is correct.
Excellent video!
Excelente vídeo
nice video thanks
Every room in a residential structure has a window. A 360 will tell you where the main body of fire is. You can extinguish the room very quickly from the outside before a crew can get dressed and get the front door open. Why go inside to fight a fire you can access from the outside? It makes no sense and is unnecessarily dangerous. If the structure is tight except for that window, all the pressure, heat, smoke and water vapor will go out that same window not deeper into the pressurized structure. By WAITING to stop the fire from the inside, you are exposing any victims and other materials to that heat.
If you have to go inside and you vented the windows correctly based on where the fire is, a tight cone of water will cover more material faster and eliminate the flames which create and maintain water vapor at dangerous temperatures. All the gasses will leave the structure through the window if the entry point air flow is controlled. Straight streams at close range take Much longer to eliminate the flames. MOST, fire fighters don't Think about eliminating flames fast so using a cone will help to do the work that they aren't doing.
JB91710 And what does that strategy do to protect the victims that may be interior? You assume the room is “tight” based on what? Is the door even closed or intact? This post is somewhat dated but the suggestion of “a cone” of water is in direct contradiction to the facts and studies relating to combination or straight streams for fire attack. I would suggest taking a look at the latest UL studies.
@@jakenoa I said tight Structure, not tight room. If a room is burning and you enter the structure to fight the fire, the pressure release location will be at the door where you entered which will allow the flames to exit that room and head toward the door. When you vent the fire room windows and apply water through the windows onto the burning material, the rest of the structure is protected. Even if that room's interior door is open but the rest of the structure is tight, the release location will still be the windows. It makes no sense to fight a fire from the inside that you have access to from the exterior. Also, and as I said, a cone of water covers more material faster and cools the gasses better than any straight stream. Putting UL's or any other agency's stamp on something doesn't automatically make it right. It doesn't matter who says what, common sense and logic dictate what is correct.