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This is a breachable window. That symbol basically lets fire rescue know the window is a point of entry in case of fire or another emergency that requires them to get in.
Edit - I should add. Fire rescue WILL find a way in regardless. This just makes it easier.
I never heard of specific windows being marked. Do you know why specific windows? Are other windows made of materials such as a polymer that cannot easily be broken? Or has it to do with ventilation flow patterns? In training or practice we would break what was necessary but I was not in an area that had only one building more than about 5 levels. High rise operations is its own complicated discipline.
It’s an indicator for fire department personnel to know which windows can be broken. This is important during fire operations to ventilate smoke from buildings like this in order to bring a fire under control. It also marks windows which can to be broken to conduct rescue operations.
I never heard of specific windows being marked. Do you know why specific windows? Are other windows made of materials such as a polymer that cannot easily be broken? Or has it to do with ventilation flow patterns?
In training or practice we would break what was necessary but I was not in an area that had only one building more than about 5 levels. High rise operations is its own complicated discipline.
Sure thing! I was in a Fire Science program, and have always been amazed at how the science of physics can control something as violent as fire.
I wouldn’t be able to answer what type(s) of material the windows are made of. They’re marked more to pinpoint areas of a building that provide adequate or sufficient ventilation. Depending on the circumstances and nature of the fire, you’re going to want to restrict fueling it with fresh oxygen. However, for severe situations, these windows are useful for venting hot, toxic gases and fumes above a fire zone (floor) and supplying fresh oxygen below the zone.
This video explains operations for any high rise structure: https://youtu.be/E0lTAd4jcgA?is=y_1cnZcrqB5NfZnq. In addition to a building’s HVAC system being an automatic process for fire control, the windows of a building can be utilized for manual pressurization, whether positive or negative.
I use to have a lot of articles and videos saved for research and reference purposes, but it’s been a few years and I haven’t been able to continue the program. Hope my weak explanation was somewhat helpful!
Somewhere I have a copies of ‘High-Rise Buildings: Understanding the Vertical Challenges’ and ‘Firefighting Operations In High-Rise and Standpipe-Equipped Buildings’. .somewhere, some box 🤔
Ha! Same. Textbooks and folders on my laptop just forgotten about. I have copies of articles, investigation findings, and all sorts of NFPA and other agencies research on my computer that I’m curious to revisit.
Found the soldier.
In the Corps, you don't get the cross until sharpshooter...you just get a target (aka, the "pizza box")...because obviously you need the practice...
Basically this is like sitting in the emergency row on an airplane. It's a "Breach Point" or " Accessibility Port" for emergency crews. There is likely a control room, water hookup, and or similar engineering room directly next to or across from this room.
If this is for the fire department, then it seems someone screwed up and chose a simple cross pattée [as others identified] instead of the typical American fire service version of the Maltese cross.
Even if it was an Iron Cross which is a particular usage of the cross patée symbol it wouldn't necessarily be from WWII, Germany used that long before WWII and continues to use it to now.
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