Thanks Sir Col, and thanks Wee B, not sure all phased evacs require the weekly drill / fire wardens you speak of....but anyway Mr T you have trained me very well.
Infact I will quote paragraph A6.21 page 158 of your flats of your guide. "...it will normally be wholly inappropriate to to adopt simultaneous evacuation of all floors in a high rise block
I totally agree.Accepted.
The same paragraph says that "....there may be unsual circumstances , in which it might be necessary to consider the installation of a communal fire alarm system..." it continues and I paraphrase "...nevertheless...this does not imply an evacuation signal need be sounded"
I take that to mean you don't need to alert the whole block but perhaps we need to alert the affected floor and the one above it!
Lets say I have a high rise tower block, compartmentation has been compromised for whatever reason, perhaps the correct level of compartmentation was never properly incorporated into the original construction, yet because it was previously council owned a blind eye was turned.
Lets say I decide we can't have a stay put policy in the block, atleast not on the floor the fire has occurred. Lets imagine other engineered solutions are impractical.
I will accept that a fire will take time to affect other floors, but I'm not happy the fire will be contained to the flat of origin, and that fire might be able to spread upwards or sidewards between flats or into communal areas fairly quickly as I do not have my 60 mins fire separation.
So Wee B, Sir Col over to you. What are your thoughts? how would you deal with this scenario?