On 18/06/2017 11:35, The Natural Philosopher wrote:
On 18/06/17 11:16, Michael Chare wrote:
A nearby wooden bungalow was refurbished and the insulation improved
with Celotex a few years ago. I wonder if the occupants know that was
the stuff on the outside of Grenfell tower that burns at high
temperatures and gives off toxic fumes.

Unlikely, since it wasnt.

In fact you are the only person who seems to know this.

Read page 2 of the Sunday Times.

Polyisocyanurate is fire-resistant but burns at high temperatures
emitting deadly toxins including hydrogen cyanide.



Celotex on their website has documentation specifically warning users
and designers to be aware of regulations concerning buildings 'with a
storey height of over 18m'

They tested it as safe when used with cladding formed of mineral
composites.

They did not test it with cladding formed of plastic foam sandwiched
between thin aluminium or zinc sheets, that would bridge the fire stops.


Which does not contradict what is in the Sunday Times article.

--
Michael Chare

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