Hi,
I am going to fit a new fire door with frame to a kitchen entrance. I want to do everything right but I can’t afford the price I am being asked to get the fire door done. However, I am ready to do my homework using this forum and other sources and to buy all the correct parts necessary to ensure the fire door plays its role fully and that it passes any potential checks by the local authority.
I am going to get a fire rated lining which has the groove already for the intumescent seal. This means I will not need to route the door. I will also be using all the intumescent strips that come with the fire rated latch, hinges and knob. I do not intend to install a closer but I do intend to put the signs up on both sides of the door. If necessary, I will use fire rated mineral wool capped with mastic in between the outer and inner frame but I am pretty sure the gap in between the will be minimal enough to not need any packing. I understand that the general requirement of the average maximum allowed gap in between the door and the frame/lining is 3 mm.
Can you please correct me if I am wrong with any of the above?
It appears that architraves do not have to fire rated but since I will be putting new ones on anyway, I will get hardwood/timber ones to enhance the fire resistance. Do I need to use some some sort of intumescent sealant in between the architrave and the wall if there are little gaps due to the wall not being uniformly flat all around?
Finally, the one thing that I have not been able to find information about is what can I use to fix the lining to the masonry/stud. Can I use screws? If so, are there special screws needed if they do not come with the lining? Do they need to be of a specific metal/alloy? How long/deep should they go?
Abd
