Ian
Intumescent strips are fitted into a groove around the outside of the door.
When they get hot, they expand to fill the small gap between the door and the
frame, to block the passage of smoke.
Not really my subject, but I was Fire Officer for a Victorian building when we
had to spend a fortune on meeting fire regulations for offices.
--
Alan Wood
http://www.alanwood.net (Unicode, special characters, pesticide names)
----- Original Message ----
> From: SwissPace <ian@xxxxxxxxxxxxxxxx>
> To: olympus@xxxxxxxxxxxxxxxxx
> Sent: Fri, 22 January, 2010 11:21:01
> Subject: [OM] [OT] Firedoor installation
>
> Hi All,
>
> Totally off topic friday question, but has anyone installed a firedoor..
> I need to install one in the celler where the heating and oil tanks
> are. Whilst my brother in law was here I got it into place and bolted
> it, I did have the sense to use steel bolts rather than plastic rawplugs
> ;-) The swiss don't generall do DIY and the council sent only the door
> regulations and say the carpenter would know how to fit it. The swiss
> builders are nicknamed the swiss mafia for good reason as a lot of price
> fixing etc goes on.
>
> anyway my question is what do I use to fill between the metal frame and
> the doorframe.
>
> I can see four options
>
> 1 normal cement - is it fireprrof enough
> 2. fire cement - expensive cement used to build fireplaces
> 3. fireproof expanding foam - have found some in the UK
> 4. intumescent strips - expand as they get hot - can also get from UK
>
> and in this one the yellow strip at the back of thge gap is an air gap
>
> Thanks in advance
>
> IanW
--
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