Rebated Intumescent Strips and Surface Mounted Fire Door Seals

[Guest James]

Hello There,

 

I am looking for a bit of advice. We are installing new fire doors with rebated intumescent strips and smoke seal brush into existing frames in a school. I am wondering if it is necessary for us to also install surface mounted fire door seals onto the frame or whether this is just unnecessary. 

 

Thanks

[Tom Sutton]

You can get combined rebated heat and smoke seals or surface mounted however you only need one or the other but as you are installing new fire doors then I would recommend the combined rebated heat and smoke seals. You need a heat seal and a smoke seal for FD30/60s fire doors but there is no need to double up with them.

Check out https://www.safelincs.co.uk/fire-and-smoke-seals/.

[Guest James]

45 minutes ago, Tom Sutton said:

You can get combined rebated heat and smoke seals or surface mounted however you only need one or the other but as you are installing new fire doors then I would recommend the combined rebated heat and smoke seals. You need a heat seal and a smoke seal for FD30/60s fire doors but there is no need to double up with them.

Check out https://www.safelincs.co.uk/fire-and-smoke-seals/.

Thank You Tom. I thought this was the case I just wanted to check. 

[Neil ashdown]

The installation instructions or product data sheet for the fire door leaf will advise which fire seals are necessary.  Be careful to adhere otherwise performance certification may be void. 

BS 8214:2016 Timber based fire door assemblies Code of practice provides further guidance also check out the website of the Intumescent Fire Seals Association at   https://www.ifsa.org.uk/  for best practice guidance.