AndreasN wrote on Mon, 20 October 2008 04:44 |
Ouch! Hope it didn't set you back for too long.
Was it that hot, or didn't it live up to its expected high heat resistance? How is the rockwool burning? Combusting, melting, deforming..?
According to the Norwegian rockwool page, the product does not contribute energy to a fire. It should have a melting point above 1000'C and should not combust in any case.
According to their paper.. How was reality?
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We did have to reschedule a few things, but luckily only about 4 dual membrane traps and a handful of diffusors were lost in the fire (on top of all their machines that were destroyed either by the flames or the water + the product the firebrigades add to the water which seems to be very aggressive and made a lot of the tools rust), but luckily the building's structure was still sound, so they could rebuild rather fast.
Now, when it comes to the rockwool, what I saw was a red glowing mass of rockwool in the fire, (I arrived after the ceiling went down and looked from the street) and a few days after, when they showed me the damages, they showed me what was left of the rockwool: mostly some black dust, but sometimes ebony dark crunchy bits.
I have also noticed many times on construction sites that it happens that they adjust metal studs close to rockwool bats in ceilings etc, and when they cut the metal with the electric saw, the parts of the rockwool that are touched by the hot metal projections start glowing VERY fast and consume fast as well. no flames though.