Fire Door Threshold Seal

If a fire door has a gap of 5mm along the bottom its integrity is compromised and it allows fire and smoke to pass through and spread.

Fire door threshold seal.

We stock door weatherstrip products for use in both commercial and residential exterior openings and fire rated commercial opening. Thresholds are not typically required by the codes and standards for fire door assemblies although there may be a need. A combination fire smoke sealing gasketing product pemko hss2000xs88 is the longest lasting commercial grade door seal. Astroflame s passive fire protection products such as intumescent fire seals telescopic letterboxes fire grilles glazing tape door viewer fire door hinges etc.

Bs9999 2008 recommends for fire doors with cold smoke control that the threshold gap should be either less than 3mm in height or should be fitted with a threshold seal. 3 25 width aluminum with vinyl top threshold 75 h 206 3 5 width aluminum with vinyl top threshold 1 125 h 207. This pemko bulb vinyl seal is compatible with though not limited to. In this case the door requires a threshold seal to ensure it can withstand and protect against smoke and flames in the event of a fire.

The reason for this is that in a fire affecting an elevator hoistway the neutral pressure plane would not necessarily fall at 40 inches above the bottom of the door so we can t assume that a door bottom seal is not needed. When speaking with manufacturers however a common statement is that a fire doors gap of up to 8 mm underneath the door is permissible. Seal replacements are a simple and inexpensive way to restore old and ineffective seals on door hardware. The products below are for maintaining fire door integrity.

Available in gray and black vinyl. We also have a selection of adjustable door sills. Our weatherstripping products include door bottoms door thresholds door sweeps weatherstripping perimeter gasketing smokeseal weatherstrip and door seals.