Fire door between house and garage gap above

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Recently had an FD30 firedoor installed by joiner between garage and house and the gap on top is 6-7mm. Gap to sides is <4mm which seems fine.

I have asked for it to be re-hung - is this reasonable request ? As I have seen this should be <4mm gap - it has the fire strips and brush on frame but the top of door does not make contact with brush only sides.
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Whats the situation at the bottom of the door - will you get a similar gap if you lift the door? Or is it carpet etc Makes sense to correct it for the door to fulfill its purpose
 
Recently had an FD30 firedoor installed by joiner between garage and house and the gap on top is 6-7mm. Gap to sides is <4mm which seems fine.

I have asked for it to be re-hung - is this reasonable request ? As I have seen this should be <4mm gap - it has the fire strips and brush on frame but the top of door does not make contact with brush only sides.View attachment 296413
Yes, if he was instructed that this is a fire door, it is reasonable to ask him to sort it out. According to the regulations a fire door gap at the top cannot exceed 4mm. He should know this. The reason why it is critical is because above 4mm the brush strips aren't guaranteed to work, and the intumescent seals won't seal the gap fully in the event of a fire.

As to the bottom, the gap there is dependent on the door manufacturers specification with a lot of manufacturers now specifying 3mm or sometimes 4mm as the max at any point. If he lifts the door you will probably have too much of a gap at the bottom, and may need to fit a drop seal to ensure that the door meets the regs. It's not a bad idea as it also cuts draughts and acts as an acoustic seal as well
 
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Thanks both , he has moved the door up slightly and am now happy with finish so glad I asked , also improved the latch as it was rattling within and now closes solid. there is a gap at the bottom of less than 10mm so I will look to fit a drop seal
 

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