External rated fire door

[garyo]

Hi,

I need to find a door that will link my house to a new attached garage. This needs to be a fire door, but does it also need to be rated to deal with the thermal loss?

Is there a name/code for this other than 'external fire door'? It feels like I'm looking for a niche product, so wonder if I'm overlooking something. For instance, are all composite doors FD rated by default?

Thanks

Gary

 

[freddiemercurystwin]

Any minimum 30minute internal fire door will do. It doesn't need to be an external grade door, it's not external. Also need seals and a closer.

Consider security though and that perhaps a 60 minute job will provided a little more resistance.

 

[Deleted member 174758]

Note that a 30 minute door is 44mm thick in most cases - 60 minute doors are thicker (generally 51 to 54mm) so the door casing will require modification to accommodate this

 

[garyo]

Thanks guys - that explains the trouble I'm having... I thought I was in £800 composite door territory for a while. I'll buy the door and frame as a set I think so presume it'll come with the seals and will check re: the closer.

 

[garyo]

it's not external.

My assumption was that because the garage was outside the thermal envelope, the door would need to be thermally A-rated etc?

 

[Deleted member 174758]

I'll buy the door and frame as a set I think so presume it'll come with the seals and will check re: the closer.

I"ve generally found that pre-hung sets came without the intumescent/brush seals, possibly because different clients have different specifications, e.g hospitals, medical centres, labs, etc often specify the rubber wiper type of cold smoke seal as opposed to the more common brush pile variety. Similarly for primer only sets the supplier would need to know the finish colour (strips come in white, brown or black in the main). Worth confirming with your supplier, although firms like Travis Perkins, Howdens, etc always stock them

Closer is always supplied by the user/installer. Ironmongers Direct is one source