1. Glazing
An insulated glass unit (IGU) combines many glass panes into a single-window system. Most
IGUs are double glazed.
2. Glazing Gasket
A mechanical seal fills the space between two or more mating surfaces. Generally, this is to
prevent leakage from or into the joined objects.
3. Casement Optics
A window sash that opens on hinges at the side.
4. Glass Strip
A strip of wood, metal or other suitable material attached to the rebate to secure the glass.
5. Sealing Levels
Primary seal of polyisobutylene and secondary seal of polysulphide, polyurethane or silicone.
These ensure the effective and durable sealing of double-glazed units.
6. Steal Reinforcement
In case of breakage, the interlayer holds the fragments together. It continues to provide
resistance to the passage of persons or objects.
7. Profile Chambers
A Length or window or door frame material.