约翰·W·米滕多夫（John W. Mittendorf）
让我们继续考虑筋膜：
Entry
In some cases, we are creatures of habit. As an example, do you sit at the same place for lunch and dinner at the firehouse? Answer – of course you do. So, when we apply this human characteristic to fireground operations, we can normally make two bold statements:
- Regardless of the size of a fire, you will stretch a 1 3/4-inch line most of the time.
- Regardless of the location of a fire in a structure, you will stretch the initial line through the front door.
When we apply the last statement to fireground operations that involve buildings with fascias, a potential problem can suddenly surface courtesy of human habits: you will likely stretch the initial attack line though the front door and underneath a fascia, known for its ability to collapse when exposed to fire. If you suspect that a fascia on the front of a building and/or over your entry point is (or might be) exposed to fire, consider stretching your attack line through the back door. Consider sending an engine company to the back of the structure. Ensure it has access to a rotary saw with a metal cutting blade as the doors at the rear of these structures are normally metal doors in metal frames. Although this approach might involve more time, it can significantly increase fireground safety.
Extension/Overhaul
If a fascia has been exposed to fire and must be overhauled, remember that gravity wants the fascia, fire weakens construction, and water weighs 8.35 pounds per gallon. These three factors work against you while overhauling a fascia (or any building for that matter) that has been exposed to fire. There are three basic ways to overhaul a fascia:
- 如果筋膜在前部有一个斜坡（或俯仰），则可以尝试从顶部（地面梯子或空中装置）工作到筋膜中。从地面梯子上看这是困难和危险的，而且很难，但相对易于空中装置。如果筋膜在前部平坦，您可以尝试用工具（派克杆等）从前面拉动饰面材料，但是您将站在潜在的倒塌区域中。
- 您可以站在筋膜下方，拉下底部以进入内部。由于统一的建筑法规需要在公共人行道上进行压缩金属板条和石膏，因此这充其量可能是一个艰难的操作。此外，当您拉出筋膜的底部时，您将站在潜在的倒塌区域中。
- 如果屋顶是安全的，人员可以通过快速拆除筋膜后侧（通常是1/2英寸胶合板，OSB等），并从屋顶进行大修，来进入筋膜内部。如果在此大修场景中筋膜崩溃，那么崩溃的材料将从人员中掉下来。
The next Reading A Building installment will consider the most important factor when confronted with a fascia – your size-up and how you evaluate this type of construction.
John W. Mittendorf joined the Los Angeles City (CA) Fire Department (LAFD) in 1963, rising to the rank of captain II, task force commander. In 1981, he was promoted to battalion chief and in the year following became the commander of the In-Service Training Section. In 1993, he retired from LAFD after 30 years of service. Mittendorf has been a member of the National Fire Protection Research Foundation on Engineered Lightweight Construction Technical Advisory Committee. He has provided training programs for the National Fire Academy in Emmitsburg, Maryland; the University of California at Los Angeles; and the British Fire Academy at Morton-in-Marsh, England. He is a member of the editorial advisory board of188金宝搏是正规吗and author of the books卡车公司Operations(Fire Engineering, 1998) andFacing the Promotional Interview(Fire Engineering, 2003).
