Fire Rated Cavity Closers

[Jammy5]

Three story building, advised fire rated cavity closers on all openings. Are they really required or will normal insulated cavity closers suffice?

 

If they are, can some one recommend something more cost effective than 150mm TIMLOC FR30 Cavity Closers that about £20-25 per length (windows are 1.8 x just over 1.2m, so can't even get 2 sides from a length). 4 lengths per window x ALOT of windows = Big cost!

 

Many thanks,

Jamie

[Gus Potter]

5 minutes ago, Jammy5 said:

Three story building, advised fire rated cavity closers on all openings.

Assume this is a timber frame? 

 

Your cavity closing is going to be driven by your external leaf / cladding arrangement.

 

https://envirograf.com/product-category/fire-barriers/cavity-barriers/

 

They have a good offering which I spec from time to time. 

 

BUT to be blunt.. if you are asking about this stuff on BH then please be careful before you swap materials out with your designers spec.

 

To be safe by all means look for similar and cheeper products but ALWAYS check with your designer that it is ok to use an alternative material.

 

Yes fire protection is expensive.. but it has to be implemented. Many think.. well we are young and fit so will exit the building.. but you put the fire service at risk and wallet wise.. your insurer may not pay out if you cut corners and are unlucky enough to have a fire. 

 

 

 

 

[Jammy5]

It's a three story, traditional block/brick build if that helps any?

[ADLIan]

There are exemptions for the cavity barrier requirement/performance - please see the section on ‘compartmentation’ in Approved Doc B