What is magnetic “clip-on” double glazing?

While often confused with double glazing, magnetic “clip-on” products are actually secondary glazing.

Secondary glazing is where a second layer of glazing (either glass or perspex ) is fitted to the existing single glazed window. This is often clipped, or magnetically held in place, or in some cases may be glued.

Genuine double glazing is distinctive in that it is a completely sealed unit. This is important. It means that no moisture (or dust) can get in between the two pieces of glass. The sealed space provides the insulation improvement – thermal and sound.

While often confused with double glazing, clip-on or magnetic seal secondary glazing products are often portrayed as cheaper alternatives, however can prove to be significantly more costly in the long term.

For new homes constructed to meet the building performance requirements of today, their windows and doors have genuine double glazing. Double glazing manufacturers have to meet BRANZ (Building Research Association of New Zealand) tested standards here in New Zealand to ensure a consistent quality that will stand up to the New Zealand climate.

The Double Glazing Company supplies only genuine double glazing manufactured here in New Zealand to BRANZ tested standards.