Re: Re: fire proofing node0 ?

[Ho Yin Ng <yahoogroups@xxxxxxxxxxx>]

Marcus,

What I meant was that you should not add additional plastering to your
existing ceiling in the hope of improving the fire resistance.

This will not improve it, as it will just add extra weight which would
cause it to fail quicker.

However replacing it will one layer of suitable plasterboard (i.e. Gyprox
Fireline) will provide 30mins fire resistance.

Regards,

Ho yin

At 11:46 11/11/2004, you wrote:

>Ho yin,
>
>Thanks for the info.. I'll check out the link during my lunch hour.
>
>20min fire protection for plasterboard is about what I've heard.. but
not
>sure double boarding it would cause it to fail quicker, unless its to
>do with heat build up or maybe the extra weight ?
>
>regarding the door.. its an old solid wood door so I suspect its a much
better
>fire door than any new door would be. The idea isn't really to 100%
>fireproof the
>room.. just make sure it keeps the stair landing in tact long enough
for us to
>escape safely.
>
>At the end of the day, I hope all this is wasted effort and I never
have to
>put it to the text :)
>
>Marcus
>
> > Actually BRE Digest 208 states that an existing ceiling of 15mm -
20mm
> > plaster on a wood lath may possibly contribute up to 20 mins to
the fire
> > resistance of the timber joist, dependent on its condition.
> >
> > But you should not add additional layers to your ceiling as this
will
> > probably cause it to fail quicker.
> >
> > A solution maybe to use one layer of 12.5mm Gyprox Fireline this
will
> > provide you with 30mins fire protection.
> >
> > See:
> >
> > www.british-gypsum.bpb.com
> >
> > for more info.
> >
> > HTH or at least helps you to get a start.
> >
> > But what about the door? Surely this needs to be fire rated as
well?
> >
> > Regards,
> >
> > Ho yin
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>