[Fire door gaps]

What is the recommended gap for a notional FD30S timber doorset at the door to floor, there are fire and smoke seal on the leading edge,top and hinge side but nothing at the bottom. The gap at the bottom is 12mm, what is the regulation on this type of door.

[Composite doors]

Thanks Neil 

[Composite doors]

We have a fire door survey contract in place and majority of the doors are composites. The building are sheltered housing, shared housing , high rise buildings.

The client holds certification on some sites for composites but majority they don’t hold any evidence of certification. 

With the MOH detailing on GRP composites test data where several composite doors manufactures failed, i wounded where we stand if the client can’t provide any certification and is there any guidance on this matter.