Triple Glazing vs Double Glazing

This week is Big Energy Saving Week #BESW15, and therefore thought it appropriate to look at the benefits of updating your double glazed windows to triple glazed windows.

Triple Glazing is becoming more and more popular, as many people are looking for better energy efficient windows, and double glazing is now no longer enough. The normal method of comparing the energy performance of windows is to use the U value measurement, and the lower the U value the more energy efficient that window is. For example: –

Single Glazing – U Value of 5
Older Double Glazing – U Value of 3
New Modern Double Glazing – U Value of 1.6
However, Triple Glazing – U Value of 0.8

It is clear to see that Triple Glazing has the best U Value score out of them all.

One of the main reasons people choose to switch to triple glazing is for comfort. You could insulate the walls, roof and floor of your house, BUT if you ignore the glazing you will end up with cold spots surrounding the windows at night, which cause draughts, condensation and heat loss. Homebuilding & Renovating looked at a study carried out in Germany showing what happens to surface temperatures on various forms of glazing, these were the results: –

  • Next to a single glazed window, the internal surface temperature is around 1degrees
  • Next to a double glazed window (pre 2000) the surface temperature is around 11degrees
  • Next to a modern, energy efficient double glazed window, the surface temperature is around 16 degrees
  • Next to a TRIPLE GLAZED window, with a centre-pane U vale of 0.8, the temperature is 18 degrees

So you can see a double glazed window is ‘livable’, however a triple glazed window is just that much more comfortable.

More benefits of Triple Glazing

As well as having the benefit of heat, triple glazed windows also offer the following benefits…

  • Decrease in Noise Pollution

The extra pane in the windows serves to block out even more sound than double glazed windows does.

  • Intruder Deterrent

The extra paine in the windows makes it that much harder for burgulars to break in.

  • Toughest Windows

Triple Glazing features a multi-point locking system as standard.

Still not convinced? Why not give one of our team a ring to find out more on 0151 280 5252.

Introducing Storm 2

Storm 2 Timber

The new Storm 2 timber-alternative range designed by a double glazing genius at Evolution and has been created to emulate the beautiful aesthetics of traditional timber windows. The Storm 2 Window offers better energy efficient that is not only A rated +13 but also has a 1.3 u-value. Attention to detail means that ventilation vents are properly concealed, peg stays work and are positioned within a reinforced panel, and the specially designed foil end caps on the ledges wont discolor with age.

More reasons why Storm 2 is right for you

Window aesthetics heavily inspired by traditional timber styling. Deep timber cill and timber-like proportions across the whole frame.

The Storm 2 window is ideal for those wanting to replace timber windows, or aspire to achieve the look of timber windows. The Storm 2 window really does look like timber, and it’s difficult to tell the Storm 2 window apart from real timber.

Exceptional energy performance – A+13. Triple Glazing also available.

The heat generated in your home will not be able to escape with the highly energy rated Storm 2 window. Your bills will reduce in cost and your house will stay warm and cosy for years to come. You can even have triple glazing to reduce noise and conserve heat.

Slimmest window available with a greater glazed area.

Let more light into your home with the Storm 2 window, without compromise.

Exquisite wood detailing across all of the frame.

With the Storm 2 window, you can achieve the look of wood, but without the laborious sanding and painting every 5 years. The Evolution wood-grain effect laminate ensures a seamless finish and a maintenance free window.

Discreet trickle ventilation via our unique weather bar.

Trickle vents can be an unsightly, but sometimes necessary addition to replacement windows. Evolution have developed a weather bar that sits over the trickle vents on the outside, keeping them hidden from view, so your beautiful new windows will look their very best whilst still being practical.

Available in a range of standard colours and in over 200 RAL colours.

Having a wide colour range to choose from, you can have the exact finish you desire. You can even colour match your new Storm 2 windows to an existing colour – suitable for conservation areas.

Evolution 2


If you would like more information on these fantastic windows please call us on 0151 280 5252 or visit