3 ms·
Why is brown particularly bad?
by duncan_bayne 13y ago
Why is brown particularly bad?
- zecho 13y agoIn a house fire, brown smoke generally signifies structural fire, rather than the contents. I have no idea about aircraft. The situation matters, I would assume. Reading smoke is more art than actual science.
- sbierwagen 13y agohttp://www.fireengineering.com/articles/print/volume-158/issue-9/features/the-art-of-reading-smoke.html http://www.fireengineering.com/articles/print/volume-158/iss... White smoke that is slow or lazy is most likely indicative of early-stage heating. One more important note about smoke color: brown smoke. Unfinished wood gives off a distinctive brown smoke as it approaches late-stage heating (just prior to flaming). In many cases, the only unfinished wood in a structure are the wall studs, floor joists, and roof rafters/trusses (photo 3). This can tell you that the fire is transitioning from a contents fire to a structural fire. Using our knowledge of building construction-especially lightweight structural components and gusset plates-brown smoke issuing from gable-end vents, eaves, and floor seams becomes a warning sign of impending collapse.
- duncan_bayne 13y agoThanks :)