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FIRE SERVICE AND GENERAL FIRE SAFETY TOPICS => Fire Safety => Topic started by: Suttonfire on October 31, 2017, 07:27:02 AM

Title: Door Stop Size
Post by: Suttonfire on October 31, 2017, 07:27:02 AM

Please could anyone confirm whether a fire resisting door set, if fitted with intumescent strips and cold smoke seals, still requires a 25mm door stop?

My research into this has lead me to contradictory findings. Thanks

Title: Re: Door Stop Size
Post by: nearlythere on October 31, 2017, 10:07:58 AM

Quote from: Suttonfire on October 31, 2017, 07:27:02 AM

Please could anyone confirm whether a fire resisting door set, if fitted with intumescent strips and cold smoke seals, still requires a 25mm door stop?

My research into this has lead me to contradictory findings. Thanks

The provision of Int and SS meant that the 25mm door stop glued and screwed was no longer necessary.
Double swing FR doors don't need stops provided the Int and SS are fitted.

Title: Re: Door Stop Size
Post by: Mar62 on October 31, 2017, 03:57:22 PM

Minimum of 12mm

Title: Re: Door Stop Size
Post by: colin todd on October 31, 2017, 09:42:09 PM

If it was tested with a 25mm stop, it will need a 25mm stop.

Title: Re: Door Stop Size
Post by: col10 on November 01, 2017, 09:11:34 AM

One of the manufacturers told me that the 25mm stop aids capillarity action and providing strips and seals are fitted the 12mm stop is better.

Title: Re: Door Stop Size
Post by: Fire Monkey on November 01, 2017, 09:47:39 AM

Are the doors original to the frames and are they a 'set'? As Colin says the door and frames need to be a tested system. You could find one fire door that required 25mm stops (or an inch in old money) and another that was design not to need stops so wide. What do the specs for the door say (should such information be available).