It might seem like straw bale houses pose a tremendous fire hazard, but they provide roughly three times the fire resistance of conventional homes [source: Morrison]. Loose straw is indeed flammable, but the bales are so tightly packed that they actually increase fire resistance. In a tightly packed bale, there’s no oxygen, which reduces the chance for combustion. The plaster coating of the walls adds an additional fire-resistant seal. The National Research Council of Canada conducted testing where straw bale walls withstood temperatures up to 1,850 degrees Fahrenheit (1,010 degrees Celsius) for two hours [source: Mother Earth News Magwood, Mack, Therrien].
https://home.howstuffworks.com/home-improvement/construction/green/straw-bale-house.htm
Interesting! I was the one who learned about fire and buildings.
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