In the past there was a necessity for small pieces of glass; then came larger panes; then there was a much smaller frame; then came structural glazing, with no frame… Next there is structural glazing with minimized visual interference: glass spacers within the double glazed units.

The glass spacers allow the ‘minimal’ aspect of the glazed structure to be even more lightweight. Used as an alternative to the black structural silicone edges seen on double glazed units, glass spacers can be specified where there is a glass-to-glass joint or junction.

Where the glass disappears into any framework, allowing the double glazed unit to have desiccant in the standard aluminium spacer, absorbing any moisture in the hermetically sealed cavity.

Glass spacer technology is still rather embryonic, and therefore the production of these units is undertaken by hand. Lead-in times are longer, and therefore the costs are greater than standard double glazed units.