Posted by showcrop on December 13, 2023 at 15:50:08 from (66.31.206.26):
In Reply to: A fire is Big news posted by Geo-TH,In on December 13, 2023 at 03:04:10:
Quoting Removed, click Modern View to see
Jim, you are not totally wrong but nearly so. As I posted earlier our saw goes through a metal roof just as fast if not faster than one of asphalt shingles. we have the capability to let the heat out very quickly. Every cubic foot of hot air escaping through the roof is replaced by a cubic foot of cool air coming in the door past the firefighters.
CHECK R VALUES!!!!!
You seem to have no conception about how modern fire fighting works.
I would stand in my Tee shirt next to both walls no problem! Are you at all familiar with building construction codes?
One gallon of water, at 50 F., discharged as high pressure fog, absorbs 9,438 B.T.U. of heat when converted to steam. Stated another way, 60 GPM high pressure fog has the capability of absorbing 566,280 B.T.U. of heat per minute. Most departments use 120 GPM fog nozzles. Provided that the water can be applied into the space by two aggressive firefighters, the fire is quickly knocked down. I did this many times as nozzle man over my 25 years as an interior firefighter. Granted it doesn't always work, but if the attack is launched in time, and we would fly up the stairs at a dead run to get to it quickly, we very often had success.
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