When is an astragal required

Resolution: Types of astragal offered from Steelcraft are as follows: "Z" Astragal - For information on "Z" astragal types and attachment refer to the TD Manual page 3. Most commonly used on double What is an astragal? Resolution: An Astragal is an applied molding attached most commonly to the meeting edge of doors to: Protection against weather conditions Minimize the passage of light between the doors Retard the passa If two vertical rod devices are used with an overlapping astragal, one door would not be available for egress unless the other door was opened first.

NFPA 80 prohibits egress doors from having an overlapping astragal that restricts the free use of either leaf. NFPA 80 defines two types of astragals — overlapping astragals and split astragals. Split astragals are also called meeting stile gasketing. Astragals or meeting stile gasketing may also be used for other purposes, such as weather, sound, or light. Graphics: Zero International. Man, that is confusing. So it looks like they are leaving it up to the mfg.

That makes zero sense. What about smoke? Do they need one for smoke? We do a lot of DoD jobs and in every instance of double fire doors they have split astragals. Can you address the smoke requirement. It seems to have all but replaced the fire requirements.

What is an Astragal? Two Types of Astragals Overlapping Meeting Stile Overlapping Astragals An overlapping astragal is attached to one of the doors in a pair of doors and when the door is closed the astragal will overlap the edge of the other door.

Flat Overlapping Astragal. Overlapping Z Astragal. Share on:. Blog What is an Astragal? Jun 14, What Is A Storeroom Lock?

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