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   Miander (mian@mstdn.social)'s status on Thursday, 22-May-2025 20:39:23 JST Miander

   • anemone

   @anemone Iirc the WTC didn't use asbestos

   • Embed this notice
     anemone@ebiverse.social's status on Thursday, 22-May-2025 20:39:22 JST anemone

     in reply to

     @mian@mstdn.social and look what happened

     翠星石 likes this.
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     翠星石 (suiseiseki@freesoftwareextremist.com)'s status on Thursday, 22-May-2025 20:47:48 JST 翠星石

     in reply to

     • anemone
     @anemone @mian The twin towers did in fact use asbestos and them collapsing released ~400 tons of pulverized asbestos.
     
     The WTC7 did not use asbestos fireproofing - instead it used gypsum-based Monokote spray-on fireproofing for structural steel elements.
     
     Monokote has a two-hour fire rating for steel beams, girders, and trusses, and a three-hour rating for columns, while the WTC7 burned for 7 hours before collapsing - maybe if it had used more heat-resistant asbestos for fireproofing it wouldn't have collapsed.