Glossary

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

T

Thermoplastic
A synthetic material which can be formed to a specific shape by applying heat and compression – eg, by injection moulding or extrusion.
Threshold gap
The clearance necessary for everyday operation at the bottom of a door leaf.
Threshold seal
Any seal designed to bridge the threshold gap when the door leaf is in the closed position.
Threshold plate
A metal strip designed to fit across the doorway to form a level surface on which a better sealing efficiency may be achieved. It may also provide a transition from one floor surface to another.
glossary
Close