Posted on 11/18/2018 7:59:00 AM PST by Dupin
Fireproof shelter 20 feet under won’t do much good unless also have an air lock with adequate O2 and CO2 scubber supplies. Otherwise they’ll merely represent self-entombment.
Don’t live in a fire zone
There’s your answer
I live in Marin county
There’s no possibility of large loss of life or homes
Towns are in the flats. The other 90% is forests
Years ago I was in a car with an Insurance person. The radio was on and it was about people buying property , having it appraised for a higher price , insuring it, and then burning it down for the insurance money.
The pols seemed to want to force the insurance companies to insure these buildings.
My friend said his company would insure a burning building-if you let the insurance company set the rates. - Tom
Co2 scrubbers like submarines, which was suggested in a post below and an airlock which I already know about. as fast as the fires move through they wouldn’t be needed long.
What do you do for air in an underground shelter when the fire flashes overhead and it’s 1,000F just above you?
Don't laugh, I'm sure that's on the agenda in Sacramento.
1. I was a volunteer firefighter years ago. 80s and 90s.
2. Separation distance is a key factor, since much of the heat transfer is from radiation and convention, versus conduction or direct flame impingement. Net: require bigger buffers between structure, and between structures and natural combustibles.
2.1 require or choose exterior materials that have higher ignition temps and conduct less heat. I have seen reports where houses actually caught fire first on the inside, like curtains or wooden walls, etc from radiant heat. Consider Florida style hurricane shutters or roll-up windows and bear-proof Alaska doors. Add fire resistant window treatments on exterior windows.
3. Consider requiring or choosing poured or block concrete walls and the use of metal framing and sheathing for roof structures.
4. Lastly why does no one use exterior fire sprinkler/suppression systems? These emit high volume spray/mist mostly to suppress the temperature of structural combustibles and reduce radiant heat impact. Think of your house as a potential BLEVE, and how you might prosecute that event.
Fire-Resistant Details
Studying the houses that survived the 1993 Laguna Beach fire storm yields lessons in building to withstand the heat
By John Underwood
June 1, 1995
Fine Homebuilding Magazine
It seems few houses are built with the proven fire-resistant details that have been known for thirty or more years. Sole surviving houses do not happen by accident...
I was on a fly in fishing trip some years ago to NW Ontario. There were active fires in the area. The owner of the outpost cabin showed us how to operate the gas powered sprinkler system the Canadian forest service provided. The cabin was about 100 feet from the lake, so water wasn't a problem. I was actually rather impressed when it was turned on for the demo. That said, I don't think it could withstand a direct hit like the Camp fire.
Concrete roof with no less than a 10,000 gallon water tank with sprinklers.
And if nothing else an earth covered carport.
Curious: from whence does an underground fire shelter get its fresh air? As none is available in a fire of these sizes, even hundreds of feet up from the ground..........
A well designed shelter would either have sufficient volume for its occupants to survive the likely fire length plus a safety factor, or include an oxygen source. But even with limited air, and needing to get what fresh air is available outside, a shelter is better than nothing. Even just a swimming pool is better than nothing.
The fire itself depends on sufficient oxygen to keep burning, most of which comes from air drawn in along the ground from the surrounding area. Superheated gases rise very quickly away from the ground.
“......where they can be easily controlled.”
Controlling is only half of the intent. California is filled with programs designed to enslave people to them to provide the wealth to further enslave. Welfare, unemployment, Medical, and all the other programs they have there were created to capture people into having to vote for them too keep them coming. Not to actually help them because it doesn’t. It just maintains them with no way out of it and no possible improvement.
The other half of this is trying to force the Feds to support their programs using many different scams so the feds will give them the money the government of California needs to stay in that control you mentioned.
So if they allow the burning down of peoples’ property, and causing the folks with the cash to rebuild, are they doing that?
I think they are thinking only short term to get what they can right now. Down the road will be another scam. And that means building up a surplus of money so they can invent another people capturing program. But in the meantime, if they continue to use the fire problem as a tool like they are using ecology as a lie, then they will have a supply of scratch. But when the owners get enough of it, and they aren’t real bright, the cash cow will dry up.
rwood
Even in Marin the wind combined with fire could easily take out Mill Valley or much of Novato.
You can spec them to withstand xxxx degrees for yyy seconds. Total water per second per square foot. It’s just math.
AND keep a wide enough buffer cut.
That's racist and homophobic. And womyn and children of color would be affected most!
Add to inventory fireproof remote sensors to say how long is enough, and a periscope. Consider possibility of debris falling over your exit in your design. Dom’t waste O2 or CO2 capacity using generator while air tightened during the fire, use batteries then.
.. This was in the Boston area.-Tom
My advice: DON’T!
Take your insurance money and get out!
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