Safety and Secondary Glazing



Reducing energy bills, condensation and noise pollution are the main considerations for the growing number of UK households opting to install secondary glazing panels however there are other safety and environmental issues to consider for customers.


The majority of secondary glazing panels sold in the UK are manufactured from acrylic ( more commonly known as Perspex) with Ecoease being the only supplier of PET (Polyester) panels.

Whilst there is no obvious difference in terms of clarity, there are significant differences in terms of how the three plastics compare in fire tests and in terms of recyclability.


Ecoease Director John Feely explained: “Independent fire tests conducted on acrylic, polycarbonate and PET plastic panels reveal some big causes for concern. Acrylic acts like a fire lighter and melts in seconds giving off poisonous Hydrogen Cyanide and Carbon Monoxide.  Polycarbonate , which is used occasionally for glazing, has less toxicity but drips flames when burnt, thus contributing to the fire.


“When it comes to PET, however, when in a fire situation, the material

crystallises   and turns white. This means it can withstand temperatures of

up to 250 degrees C which explains why crystallised PET is used in oven dishes for ready meals and why it has the best fire rating of any available clear plastic.


“In an ideal world we would like to see PET used as standard for all secondary glazing applications. It makes total sense from a safety perspective,” added John.


In addition PET is classed as the most recyclable plastic available with a rating of one on the scale of 1 to 7 used for the recycling performance of plastics. Acrylic and polycarbonate, by stark contrast, are the most difficult plastics to recycle with a rating of 7.


John concluded: “Not only is Ecoease secondary glazing one of the most cost effective ways of insulating homes but it also delivers peace of mind in terms of safety in the event of a fire and is the best plastic glazing

solution currently available for the planet.”


28% Saving on Energy Bill!

There was a very pleasant surprise for Ian Heath of Egham, Surrey when he opened his most recent gas bill at the start of 2015!


His 2013 gas bill had come to £1,122 whereas the 2014 total amounted to just

£809 (when both were calculated at the 2014 gas tariff- which had gone up!).


“That’s a saving of £313; I have paid 28% less than last year,” said Ian, who finished fitting Ecoease secondary glazing panels throughout his home last February.


“It’s a clear sign that the panels are doing their job and performing as good as, if not better than, double glazing at a fraction of the cost.”


“The Ecoease measured-to-fit panels can go up in minutes. It’s safe and easy and they can be taken down in seconds.”


“Compare that with the disruption caused by installing double glazing, which would have cost me over six times more!” added Ian who has fitted the panels to windows in each of the 14 rooms in his house.


Measured to fit Ecoease secondary glazing panels are manufactured from tough, fire-retardant PET (polyester), the same material used for airline windows and soft drinks bottles. Ecoease is the only UK secondary glazing supplier to use PET.


With windows and glazed doors accounting for up to 20% of total heat loss for a typical dwelling, secondary or third glazing provides a highly cost effective insulation against chills as well as delivering dramatic reductions in energy consumption, noise pollution and all but eliminating condensation.


Ian now plans further savings by buying panels for the French windows that connect his house to an unheated conservatory and panels for a few windows around his unheated porch, thus completing the house’s secondary glazing.


“Who knows what surprises my 2015 bill might bring but I only see it heading in one direction!” added Ian.


For more details about Ecoease please visit or call 0845

519 3230.

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