Glossary

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C

Carrier
Any metal or plastic holder for a seal element.
Certifire
An independent quality assurance certification authority, which addresses relevant factors contributing to the fitness-for-purpose of products used in either fire or smoke protection. (Aligned with and managed by Exova, formerly known as Bodycote WarringtonFire Ltd.)
Clearance gap
The gap between a door leaf and its frame, or between the door leaf and the threshold.
Compartmentation
The division of a building into areas by using solid walls and floors to prevent the spread of fire and/or smoke.
Compression seal
A seal that becomes effective when a compressive force is applied to it – eg, when a door leaf closes onto it.
Concealed threshold seal
An automatic threshold seal designed to be mortised into the bottom of a door leaf where it is hidden from view.
Cover strip
A removable metal or plastic strip incorporated into a seal holder, intended to cover up unsightly screw fixings after the seal has been fitted and adjusted.
Cover plate
A removable metal or plastic plate designed to clip over the whole of a seal body, to cover screw fixings and give a smooth overall appearance.
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