Requirements for integral garage door

[Moonshine]

I am about to do my order for my garage door from habitable space as below, this needs to be a fire door FD30s

 

 

the main door is going to be this, with Intumescent Fire and Smoke Strips

 

https://www.howdens.com/joinery/doors/howdens-holdenby-oak-fd30-fire-door-obj-sku-family-11831356

 

i am not sure what threshold is need for a seal at the base as howdens are quoting this

 

https://www.howdens.com/joinery/door-fittings/door-linings/unbranded-softwood-fd30-trenched-door-lining-obj-sku-family-dfr3120

 

is there any issue for regs with it opening out into the garage (this drawing was approved by BR), and what type of lock is needed in it?

 

[Moonshine]

Anyone got any ideas?

[Nickfromwales]

2 hours ago, Moonshine said:

Anyone got any ideas?

If it's a fire door to protect the house from a fire in the garage, then any good quality lock is fine, however I would have it open with a key from the garage, and a thumb-turn from inside the house, so it can be a means of escape in a house fire.

Does this need to be airtight? @Russell griffiths has posted up some options from his findings when solving the same problem. Have a search on here, lots of discussions have been had!

 

https://forum.buildhub.org.uk/search/?q=airtight fire door&quick=1