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Secondary Glazing

Secondary Glazing for listed buildingsWhat is secondary glazing?

Secondary glazing is defined as ‘insulation by means of a second pane of glass, or a sheet of plastic: a simple form of double glazing’.

What types of secondary glazing are there?

You can improve insulation in your home with various types of secondary glazing.  Firstly, there is metal casing, where a metal frame is fixed to your existing window frame with a pane of glass within. Then there are wooden or PVC frames holding a glass pane.  Finally you have magnetic secondary glazing, where strong magnets hold a pane of some type of plastic sheeting against your existing window frame.

Secondary Glazing – is it the right choice for you?

Keep warm with Secondary GlazingIt’s the winter and your house feels cold. Despite modern heating, the single-glazed windows in place just aren’t good enough these days and you’re wondering what you could do about them…

Secondary glazing can be an excellent solution with so much heat being lost through poorly fitted, single-glazed window panes.  Sometimes you might not be permitted to add double glazing, such as in the case of listed buildings. Sometimes it might just not be within your budget at the moment.  Not only are there a variety of materials with which you can improve your window insulation, there are also a variety of methods and you can choose the best fit for you and your windows.

Thermal insulation

With secondary glazing alone, thermal insulation can be improved by 63%, which is actually more efficient than double glazing at 61%.  The gap between the panes of secondary glazing can also make a massive reduction in noise transmission, as the empty space acts as a sound baffle.  As a general rule, the bigger the gap, the more noise is reduced.

Why choose Ecoease secondary glazing?

At Ecoease, we use PET plastic as our glazing material of choice, for several reasons.  Firstly, it is a warm material and is excellent at reducing condensation issues.  Secondly, it is fire-retardant, flexible and hard-wearing.  Finally, PET is a very affordable material, meaning even if your budget isn’t huge, you can still improve the warmth of your home even if just one window at a time.  For example, a fully-made-up window panel for a window measuring 1m x 1m would cost just £115.

In summary, secondary glazing can:

  • Reduce condensation
  • Improve thermal insulation
  • Reduce external noises

See our Measure to Fit page to enter your window frame sizes and see prices instantly. Or get in touch to find out more!