Evening,
Following an inspection of a fire door (front door to an apartment leading from a communal corridor - installed circa 2003), it has been flagged that the concealed single Perko closer is not fire-rated:
~ Would this have been acceptable practice at time of installation?
~ Notwithstanding the above, does said closer need to be replaced with one that is fire-rated, or would doing so be "best practice" only (i.e. there is no statutory obligation to retrofit one that is fire-rated)?
~ Is a single Perko, rather than double Perko closer acceptable for a fire door?
Thanks.