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FIRE SERVICE AND GENERAL FIRE SAFETY TOPICS => Technical Advice => Topic started by: Jon Barrett on March 05, 2007, 04:11:59 PM

Title: Fire Rated Glazing - Width over 1.5m
Post by: Jon Barrett on March 05, 2007, 04:11:59 PM

We have some shopfront glazing that needs to be fire rated to prevent smoke flowing out of a section of the shopfront (other options such as smoke curtains, fire shutters etc. are also being investigated).

We have been advised by a couple of manufacturers that the maximum width of glazing that has been tested and certified is 1.5m.

Does anyone know of a manufacturer who does fire rated glazing (30 minutes stability only) of more than 1.5m, certified?

Thanks.

Jon

Title: Fire Rated Glazing - Width over 1.5m
Post by: wee brian on March 06, 2007, 12:56:00 PM

I doubt it - if there is any it will cost an absolute packet.

Title: Fire Rated Glazing - Width over 1.5m
Post by: Martin Burford on March 06, 2007, 01:00:14 PM

Jon
I'm interested to know why you need FR glazing and who advised you of this ?
Conqueror

Title: Fire Rated Glazing - Width over 1.5m
Post by: Jon Barrett on March 06, 2007, 01:02:50 PM

This application is in a shopping centre where a tenant has to avoid allowing smoke to flow out of the shop into two smoke zones (as the unit straddles the two zones and there is no opportunity in the mall to control the flow).

Other alternatives such as smoke curtains or shutter are being considered.

Any other ideas would be appreciated.

Title: Fire Rated Glazing - Width over 1.5m
Post by: wee brian on March 07, 2007, 01:57:57 PM

The problem you will have is the frames that the glass goes into. They wont be very pretty and they have to be to the manufacturers spec. The cheapest solution is to incorporate a downstand (plasterboard etc) into the shopfront display.

Title: Fire Rated Glazing - Width over 1.5m
Post by: Martin Burford on March 07, 2007, 03:24:53 PM

Jon
what is the position with regards entrance to the shop unit...ie what is the door construction ?
Conqueror

Title: Fire Rated Glazing - Width over 1.5m
Post by: Fishy on March 12, 2007, 03:00:06 PM

You don't say what fire resistance you require, nor whether you need insulation performance as well as integrity.  Maximum acceptable width will also depend upon the height of the glass.

However...

If you don't need integrity performance, Schott's Pyran 'S' has been tested well over 1.5m wide.  Pyronova can also be used over 1.5m, if you want Insulation performance.  Pilkington also do glasses (e.g. Pyrostop) that can be used in widths greater that 1.5m.

Suggest that you contact their Technical Dept's with your precise requirements; I'd be very surprised if they can't help.

Title: Fire Rated Glazing - Width over 1.5m
Post by: wee brian on March 15, 2007, 10:18:53 PM

If its only being used for smoke channelling then insulation wil not be necessary