[SystemSafety] Other Potentially Combustible Building Cladding

[Olwen Morgan]

I'm beginning to wonder whether some kind of resin-bonded white asbestos 
might not actually turn out to have a lower overall hazard profile than 
these more modern panels. OK, white asbestos is a carcinogen, but at 
least it does not come with a catastrophic fire risk. It would be all 
down to the actuarial numbers, I suppose.

Just rambling among some outside-the-box ideas,

Olwen


On 19/07/2019 09:21, Peter Bernard Ladkin wrote:
> It is not only biulding cladding using alumimium-composite material (ACM) panels which is problematic.
>
> A UK expert panel convened by HMG has been looking at high-pressure-laminate (HPL) panelling. This
> is made of sheets of wood or paper infused with resin and compressed under heat. Apparently it is
> liked inter alia because of the range of bright colours in which it is available, as in the building
> in the picture in
> https://www.theguardian.com/uk-news/2019/jul/18/grenfell-experts-demand-urgent-removal-of-combustible-cladding-on-scores-of-tower-blocks
>
>
> HPL panels alone do not achieve Category A fire resistance, but some achieve Category B. An order
> has been issued (Advice Note 22
> https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/818184/Advice_note_on_use_of_HPL_panels_in_external_wall_systems.pdf
> )
> saying that, on buildings over 18m tall (although "the principles may apply to other building
> types"), HPL Category B with non-combustible insulation has been found to be fire-safe, but HPL
> Category B with combustible insulation and HPL Categories C and D must be replaced. BS8414 testing
> was used for this determination.
>
> PBL
>
> Prof. Peter Bernard Ladkin, Bielefeld, Germany
> MoreInCommon
> Je suis Charlie
> Tel+msg +49 (0)521 880 7319  www.rvs-bi.de
>
>
>
>
>
>
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