Glass Glossary – D

D
Desiccant
A hygroscopic substance used as a drying agent in insulating glass units.

Dewpoint
A calculated temperature at which water vapor will condense.

Double glazing
Two panes of glass enclosing a hermetically-sealed air space.

Distortion
An optical effect obtained on the glazing surface.

Double Glazed Units
Two panes of glass enclosing a hermetically-sealed air space.

Design Heat Loss
The calculated ratio for heat which is transmitted from a warm interior to a cold exterior.

Dry Glazing
A glazing process which does not use chemical compounds, only dry, mechanical fixings.

dB
A unit of sound measurement.

Deflection
The term applied to the physical displacement of glass from its original position under load.

Dual sealed system
A primary seal of polyisobutylene and a secondary seal of polysulphide, polyurethane or silicone ensuring the effective and durable sealing of double-glazed units.

This entry was posted in Articles. Bookmark the permalink.

Comments are closed.